View Full Version : The clutch. Who uses it?
bawked
13th March 2014, 20:51
I've had my zxr250 for like 3 weeks now, and I find I don't bother using the clutch most the time.... I don't see the point, It seems when I do use it sometimes that it doesn't go into gear properly on upshifts. Downshifting into corners and rev matching kinda does feel more natural with the clutch...
Do you guys use it? Bikes have dog synchros right, so it shouldn't really matter whether i use it or not?
Ocean1
13th March 2014, 21:01
I've had my zxr250 for like 3 weeks now, and I find I don't bother using the clutch most the time.... I don't see the point, It seems when I do use it sometimes that it doesn't go into gear properly on upshifts. Downshifting into corners and rev matching kinda does feel more natural with the clutch...
Do you guys use it? Bikes have dog synchros right, so it shouldn't really matter whether i use it or not?
Motorcycle gearboxes have no synchros at all. Learn to match revs well and you won't damage the gearbox too much changing without the clutch, but you'll still shorten it's life. Matching gears well also makes changing with the clutch a lot less hit and miss. Use the clutch.
Ulsterkiwi
13th March 2014, 21:04
I am no mechanic, but if you didnt need it why would they put on one on every bike? Its not like its an optional extra like heated grips or a centre stand.
SMOKEU
13th March 2014, 21:13
I usually don't use the clutch for upshifts, except when going from 1st to 2nd gear. I always use the clutch for downshifts. I find it easier and smoother to do clutchless upshifts in most cases.
I am no mechanic, but if you didnt need it why would they put on one on every bike? Its not like its an optional extra like heated grips or a centre stand.
It will be a bit tricky to ride a bike smoothly in traffic with no clutch.
Mike.Gayner
13th March 2014, 21:22
I am no mechanic, but if you didnt need it why would they put on one on every bike? Its not like its an optional extra like heated grips or a centre stand.
Because crash starting up a hill is fucking hard.
Ulsterkiwi
13th March 2014, 21:37
It will be a bit tricky to ride a bike smoothly in traffic with no clutch.
Because crash starting up a hill is fucking hard.
which was kind of my point, the thing is there for a reason......use it.
bawked
13th March 2014, 22:21
I know how to rev match and shit, I assume if you tried to clutchless down shift without blipping it wouldn't go into gear as you'd expect since the input shaft isn't at the right speed.
So as long as the shifts are fine (ie the revs matched) it's pretty much the same as using the clutch but faster?
Thaeos
13th March 2014, 22:38
No real reason not to.. good to keep a finger or two over the lever so you can pull it in instantly if anything starts to go wrong.
Akzle
14th March 2014, 06:38
No real reason not to.. good to keep a finger or two over the lever so you can pull it in instantly if anything starts to go wrong.
worst advice ive seen in a long time.
Certain situations only.
avgas
14th March 2014, 07:01
You fool, its not the clutch that is optional.....it's the brake lever.
p.dath
14th March 2014, 07:18
I use the clutch when changing down, and up from 1st to 2nd, and then clutchless the rest of the way.
How can you rev match when changing down? You need the clutch to be engaged to be able to blip to raise the revs to match the next gear down you are changing into.
nzspokes
14th March 2014, 07:26
I've had my zxr250 for like 3 weeks now, and I find I don't bother using the clutch most the time.... I don't see the point, It seems when I do use it sometimes that it doesn't go into gear properly on upshifts. Downshifting into corners and rev matching kinda does feel more natural with the clutch...
Do you guys use it? Bikes have dog synchros right, so it shouldn't really matter whether i use it or not?
Its a bad habit. Once you get on a big bike you will need to clutch downshifts. Or you will start locking back wheels. And if you try to push it down when the revs are not right you will bend shift forks in the gearbox.
TheDemonLord
14th March 2014, 07:30
Clutchless upshifts (with a quick throttle blip)
Clutch on the downshifts
Clutch to start and stop
DMNTD
14th March 2014, 07:40
Google search motorcycle gearbox,"dogs" and replacement because you'll need to learn soon enough
Voltaire
14th March 2014, 07:45
I use the clutch as worn dogs tend to let it slip out of gear, must hey I keep my bikes for years.
iranana
14th March 2014, 08:02
I've had my zxr250 for like 3 weeks now
enough said... clutchless shifting might work, but think about the long term effects on the gearbox and engine.
F5 Dave
14th March 2014, 08:42
All that pulling the lever in must have been very hard for you. maybe you should have a lie down for a while.
actually that will doubtlessly happen as you're flicking it down in the wet. Just learn to use the clutch, for downshifts at least.
5150
14th March 2014, 09:24
All that pulling the lever in must have been very hard for you. maybe you should have a lie down for a while.
She is only asking as she can't multi task...:laugh:
nodrog
14th March 2014, 10:31
Clutchless upshifts (with a quick throttle blip)
Clutch on the downshifts
Clutch to start and stop
Hey Corky, why would you blip the throttle on an upshift? An how the fuck do you do it without using the clutch.
F5 Dave
14th March 2014, 10:37
Badly worded, he means preload the lever & 'blip' the throttle OFF to unload the drive chain
Akzle
14th March 2014, 10:41
enough said... clutchless shifting might work, but think about the long term effects on the gearbox and engine.
done properly its fuken easy on the zixa. Done by n00b.... Watch this space.
nodrog
14th March 2014, 11:05
Badly worded, he means preload the lever & 'blip' the throttle OFF to unload the drive chain
Thank fuck you have espn
eelracing
14th March 2014, 11:12
Clutchless upshifts (with a quick throttle dip)
Clutch on the downshifts (with a quick throttle blip)
Clutch to start and stop
Fixed it for ya...hey it's worth getting this shit straight,otherwise people get confused.
mstriumph
14th March 2014, 11:28
I've had my zxr250 for like 3 weeks now, and I find I don't bother using the clutch most the time.... I don't see the point, It seems when I do use it sometimes that it doesn't go into gear properly on upshifts. Downshifting into corners and rev matching kinda does feel more natural with the clutch...
Do you guys use it? Bikes have dog synchros right, so it shouldn't really matter whether i use it or not?
Of course use the bloody clutch ... to make a habit of NOT using it is to deny yourself one of those instinctive moves that can assist in tight situations.
Not to be too hard on you, it's useful to be comfortable with riding without the clutch just in case the wretched thing breaks and you have to get home without it (can happen to most, sooner or later)- it's just not too clever to make a habit of it is all. OK?:msn-wink:
TheDemonLord
14th March 2014, 13:16
Fixed it for ya...hey it's worth getting this shit straight,otherwise people get confused.
^^^^
Oops, - Yep what he said, Dip, not Blip
Thaeos
14th March 2014, 13:40
worst advice ive seen in a long time.
Certain situations only.
Don't really see how it's bad advice? Can't always predict 'certain situations'.
Akzle
14th March 2014, 15:21
Don't really see how it's bad advice? Can't always predict 'certain situations'.
well yes. You usually can if youre paying attention.
It was the:" pull it in
instantly if ANYTHING starts to go wrong."
i object to
engine seizure is about the only thing i can think of.
Drew
14th March 2014, 15:33
Of course use the bloody clutch ... to make a habit of NOT using it is to deny yourself one of those instinctive moves that can assist in tight situations.
Not to be too hard on you, it's useful to be comfortable with riding without the clutch just in case the wretched thing breaks and you have to get home without it (can happen to most, sooner or later)- it's just not too clever to make a habit of it is all. OK?:msn-wink:Rubbish. Clutch on the down shift, don't worry about the up.
Clutch cables snap, but I doubt most bikers could manage the run and jump starts required to get out of a busy city these days.
SMOKEU
14th March 2014, 16:46
well yes. You usually can if youre paying attention.
It was the:" pull it in
instantly if ANYTHING starts to go wrong."
i object to
engine seizure is about the only thing i can think of.
Stuck throttle too. I've had that happen more than once.
skippa1
14th March 2014, 19:47
Google search motorcycle gearbox,"dogs" and replacement because you'll need to learn soon enough
^^^^^wot he says
bogan
14th March 2014, 20:00
A zxr you say, they tend to break if you just look at em funny, let along cock up clutchless shifting :whistle:
mstriumph
14th March 2014, 20:48
Rubbish. Clutch on the down shift, don't worry about the up.
Clutch cables snap, but I doubt most bikers could manage the run and jump starts required to get out of a busy city these days.
para b) mebbe so ... i've done it and i'm no superhero ...
however, para a) your advice (simple as it may be to little old experienced you) is probably gonna get a n00b into strife and expense ... unkind. or mebbe it's a schoolboy thing - where all the older guys urge the kid on to do something questionable so they can stand around and laugh when it all ends in tears?
98tls
14th March 2014, 21:08
:facepalm:Call me old and set in my ways but after 51 years/ 38 motorcycles ive never seen any reason to not use the clutch but hey older and open-minded,Why not take the rims off the thing that way you wont have to use the tyres.
Akzle
14th March 2014, 21:23
:facepalm:Call me old and set in my ways but after 51 years/ 38 motorcycles ...
maybe if you learned to clutchless shift nicely you wouldnt have broken the last 37...:bleh:
AllanB
15th March 2014, 09:36
This site cracks me up.
Hmm - you have turn signals - meh don't use them mate - saves precious seconds.
Foot-pegs - take em off - saves weight
Speedo - remove it - saves weight and reduces stress worrying about going too fast
Replace the fuel tank with a smaller one - how ofter do you actually use all that fuel on a ride?
Run you engine oil at the minimum level - more weight saving.
bogan
15th March 2014, 09:40
This site cracks me up.
Hmm - you have turn signals - meh don't use them mate - saves precious seconds.
Foot-pegs - take em off - saves weight
Speedo - remove it - saves weight and reduces stress worrying about going too fast
Replace the fuel tank with a smaller one - how ofter do you actually use all that fuel on a ride?
Run you engine oil at the minimum level - more weight saving.
Ride everywhere on the back wheel, it'll save on front tyre wear.
Tazz
15th March 2014, 09:42
This site cracks me up.
Hmm - you have turn signals - meh don't use them mate - saves precious seconds.
Foot-pegs - take em off - saves weight
Speedo - remove it - saves weight and reduces stress worrying about going too fast
Replace the fuel tank with a smaller one - how ofter do you actually use all that fuel on a ride?
Run you engine oil at the minimum level - more weight saving.
I've done all this as advised and shaved 20 seconds off my time to get to the dairy. So badass! Thanks man!
Milky Bars are on me next trip.
pritch
15th March 2014, 09:55
You usually can if youre paying attention.
Are you related to Katman?
caspernz
15th March 2014, 12:38
Bikes have dog synchros right, so it shouldn't really matter whether i use it or not?
You sound like a mechanics' dream :wacko:
I prefer to spend my money on consumables such as tyres instead of gearbox rebuilds :brick:
Akzle
15th March 2014, 14:52
Are you related to Katman?
only by a superiority complex and a low horseshit threshold.
Drew
15th March 2014, 16:17
para b) mebbe so ... i've done it and i'm no superhero ...
however, para a) your advice (simple as it may be to little old experienced you) is probably gonna get a n00b into strife and expense ... unkind. or mebbe it's a schoolboy thing - where all the older guys urge the kid on to do something questionable so they can stand around and laugh when it all ends in tears?You misrepresent me. I would never give bad advice in that way. I've done it in person, for a laugh, of course. Most people have or been involved in doing it. But telling someone to do something dangerous, online? No.
Ride everywhere on the back wheel, it'll save on front tyre wear.You got a better way to do it fucker?!
You sound like a mechanics' dream :wacko:
I prefer to spend my money on consumables such as tyres instead of gearbox rebuilds :brick:Do you know what a 'dog box' is? In theory, there is no in between. There is 'in', or 'out' of the gear.
Upshifts without the clutch, (with the possible exception of 1st to 2nd), are gonna cause no more wear than if you use the clutch. The shaft speeds remain constant with or without the clutch! That momentum is where the wear comes from, not from the crank or sprocket. As long as you unload the mating surfaces of the gear you're going out of, (and the lever generally won't fucken budge if you don't), you are not adversely effecting anything at all.
This thread at it's most basic level, is a question for those with engineering understanding. I bet 90% (if not more of the people posting), have no understanding of how the gear box on their bike works. Like, I'll bet a good portion of me next pay!
Let's just check. Picture two spinning shafts, each with six cogs/gears slipped over them. Now, gears 1, 3, and 5 are fixed via spline so that they cannot spin on shaft #1. Gears 2, 4, and 6 are fixed via spline to shaft #2.
The one's that are not fixed to each spline, are moved side to side by 'selector forks'. They have 'dogs' on the side of them, those 'dogs' engage the gear on one or the other side of them. This 'engages' one of those two gears to it's corresponding mate, which is fixed to the other shaft. This creates two fixed cogs, and drive.
Who got that?
Yeah, fuck all of you!
The 'dogs' in a gear box, are three or four very serious blocks. Hardened chunks of cast iron. Unless you have a Kawasaki (my experience suggests they flag the mating process), they are machined before hardening to mate to a corresponding set of chunky arse block of machined, hardened, cast iron. So long as they aren't slipping past each other, going BANG BANG BANG, you are not damaging them by not using the clutch.
So anyone with understanding (who could prolly write it more clearly if they do), is welcome to argue with me regarding the merit of a clutch.
I only say you should use the clutch on down shift, because it is more efficient and quicker. The next gear wont engage till things are matched for speed anyway.
PS
The "bang bang bang" I described, can sometimes be heard when dropping into first gear from neutral.
pritch
15th March 2014, 16:39
Picture two spinning shafts, each with six cogs/gears slipped over them. Now, gears 1, 3, and 5 are fixed via spline so that they cannot spin on shaft #1. Gears 2, 4, and 6 are fixed via spline to shaft #2.
The one's that are not fixed to each spline, are moved side to side by 'selector forks'. They have 'dogs' on the side of them, those 'dogs' engage the gear on one or the other side of them. This 'engages' one of those two gears to it's corresponding mate, which is fixed to the other shaft. This creates two fixed cogs, and drive.
Who got that?
Kevin Cameron described how a gearbox works with just the one illustration, which I found surprising. You managed pretty well with no pictures at all.
Drew
15th March 2014, 16:44
Kevin Cameron described how a gearbox works with just the one illustration, which I found surprising. You managed pretty well with no pictures at all.I fucked it up though. It's the cog that IS fixed that hooks the gears either side.
Must remember to proof read.
Trade_nancy
15th March 2014, 17:47
I fucked it up though. It's the cog that IS fixed that hooks the gears either side.
Must remember to proof read.
A good enough explanation none-the-less...
caspernz
15th March 2014, 22:11
Cheers Drew, not arguing too much here but I do understand the mechanics of a non synchro box. Gearbox on most bikes similar to trucks, and yes in principle you're correct. The downside being that repeated poorly performed clutchless upshifting will round the dogs to the point where the box will jump out of gear. Not to mention the potential for a spectacular self destruct sequence that follows from operator ineptitude. Ask an old time dairy tanker driver about the use of the old mystery gear in a 13 spd RR and then ask the mechanic that got to fix the inevitable box-o-bits that the gearbox resembled after it went wrong...
Clutchless upshifts are something we all learn, but maybe for newbies there's better stuff to focus on than clutchless shifting?
bogan
15th March 2014, 23:29
You got a better way to do it fucker?!
294922
Yup, avoid using the rear where possible too :bleh:
veldthui
16th March 2014, 06:35
Its a bad habit. Once you get on a big bike you will need to clutch downshifts. Or you will start locking back wheels.
Not if you have a slipper clutch
nzspokes
16th March 2014, 06:41
Not if you have a slipper clutch
Then you can spend you spare time replacing clutches.
nzspokes
16th March 2014, 06:45
(and the lever generally won't fucken budge if you don't), you are not adversely effecting anything at all.
I would have thought trying to force shifts without the clutch could bend shift forks though. It would take a muppet to do it but I have read about it somewhere.
Kickaha
16th March 2014, 07:30
but maybe for newbies there's better stuff to focus on than clutchless shifting?
Yeah, getting their knee down
BoristheBiter
16th March 2014, 07:52
Then you can spend you spare time replacing clutches.
You would have to be doing some serious amount of down shifting for that.
I would have thought trying to force shifts without the clutch could bend shift forks though. It would take a muppet to do it but I have read about it somewhere.
You can bend/break anything given enough force.
pete-blen
16th March 2014, 08:14
Buy a postie...
Drew
16th March 2014, 08:27
Not if you have a slipper clutchAnother uninformed post I'm afraid. A slipper clutch needs to be disengaged, and the lever then released before it does anything at all.
In short (because the last explanation took too fucken long), ya HAVE to use the clutch on down shift to make a slipper clutch do what it does.
Cheers Drew, not arguing too much here but I do understand the mechanics of a non synchro box. Gearbox on most bikes similar to trucks, and yes in principle you're correct. The downside being that repeated poorly performed clutchless upshifting will round the dogs to the point where the box will jump out of gear. Not to mention the potential for a spectacular self destruct sequence that follows from operator ineptitude. Ask an old time dairy tanker driver about the use of the old mystery gear in a 13 spd RR and then ask the mechanic that got to fix the inevitable box-o-bits that the gearbox resembled after it went wrong...Thos trucks are a different kettle of fish, and I don't know they were 'dog' boxes. I thought just a non syncro equipped version of what cars have/had. You're talking about tonnes of load, and oodles of torque. With a meter long gear selector that takes ages to get to the next gate.
On a bike, it's fuck all weight and torque. Mega quick response to the throttle, and a lever that moves about an inch.
Clutchless upshifts are something we all learn, but maybe for newbies there's better stuff to focus on than clutchless shifting?I disagree. My daughter seemed to figure out all by herself, that the clutch was a waste of time on the upshift the day I started her riding a manual bike. I was concerned she might not use it on the down shift, but closer look as she rode past she was.
No idea how it got into her head, but it's the right way to do it I think. So WIN.
BoristheBiter
16th March 2014, 09:08
I disagree. My daughter seemed to figure out all by herself, that the clutch was a waste of time on the upshift the day I started her riding a manual bike. I was concerned she might not use it on the down shift, but closer look as she rode past she was.
No idea how it got into her head, but it's the right way to do it I think. So WIN.
I first learned to clutch-less shift, up and down, when my hand cramped up riding dirt.
Never had a problem with the gearbox.
Ocean1
16th March 2014, 10:43
ya HAVE to use the clutch on down shift to make a slipper clutch do what it does.
The 1125 had a very cute slipper system. It was managed through the main clutch, which was de-sprung by a vacuum diaphragm connected to the intake. Get off the gas and drop it down a couple and the manifold vacuum spiked and the main clutch slipped, crack on again and it hooked up.
Worked flawlessly, except for the time the diaphragm got a pinhole, the intake sucked up clutch fluid. If you ever want cubic shitloads of white smoke feed your machine a bit of brake fluid.
From what I read about the 1290SD it's got a system with some similarities...
Drew
16th March 2014, 10:59
The 1125 had a very cute slipper system. It was managed through the main clutch, which was de-sprung by a vacuum diaphragm connected to the intake. Get off the gas and drop it down a couple and the manifold vacuum spiked and the main clutch slipped, crack on again and it hooked up.
Worked flawlessly, except for the time the diaphragm got a pinhole, the intake sucked up clutch fluid. If you ever want cubic shitloads of white smoke feed your machine a bit of brake fluid.
From what I read about the 1290SD it's got a system with some similarities...
Rotax motors in RSV thou had a big diaphragm on the clutch basket itself. Ugly horrible shit system, much like the rest of the bike.
R650R
16th March 2014, 11:06
The 750 has only ever had clutch for taking off, over 100 000km now and no issues.
In recent years I've downshifted at times if you unload the torque properly no worries. First time did that by accident throttling off and preloaded lever and explored it from there.
No different to quickshifter on racebike with right technique.
I use clutch up and down on the DR though as its got that big single torque thumping through plus road corrugations battering the whole show.
pete-blen
16th March 2014, 11:08
The Rekluse units in the XT660 & TTR250 give yer best of all worlds...
just cut the throttle and the clutch unloads the drive train...
Jezxa
16th March 2014, 11:40
PS
The "bang bang bang" I described, can sometimes be heard when dropping into first gear from neutral.
Shit, I did this once by accident. How much damage does it actually do?
Drew
16th March 2014, 12:18
Shit, I did this once by accident. How much damage does it actually do?Not enough to worry about. The hardening is mostly effected by heat, so it takes prolonged slipping/knocking.
It's an early indicator that your chain needs to be tightened when it happens hooking first from neutral a lot.
SMOKEU
16th March 2014, 13:49
:facepalm:Call me old and set in my ways but after 51 years/ 38 motorcycles ive never seen any reason to not use the clutch but hey older and open-minded,Why not take the rims off the thing that way you wont have to use the tyres.
I find clutchless upshifts smoother and easier than using the clutch. That's why I usually don't bother using the clutch for shifting up, except from 1st to 2nd gear. It also helps over revving the bike on a race track.
Clutchless upshifts are something we all learn, but maybe for newbies there's better stuff to focus on than clutchless shifting?
Probably.
AllanB
16th March 2014, 15:35
It also helps over revving the bike on a race track.
Probably.
Explain - given you throttle off if using the clutch I fail to see how using it on a upshift on the racetrack (or anywhere) will avoid over-revving :facepalm:
SMOKEU
16th March 2014, 16:12
Explain - given you throttle off if using the clutch I fail to see how using it on a upshift on the racetrack (or anywhere) will avoid over-revving :facepalm:
It can accidentally be done though when shifting gear as fast as possible. It's just easier to not use the clutch for upshifts.
pritch
16th March 2014, 16:16
I find clutchless upshifts smoother and easier than using the clutch.
I've seen magazines articles advising that when carrying a pillion you should change up without the clutch so as to give the passenger a smoother ride.
Then again carrying pillions is probably another thing that shouldn't be too high on a beginner's list of priorities?
Drew
16th March 2014, 16:24
Poor man's quick shifter. Load the lever, and wait for the limiter.
SMOKEU
16th March 2014, 17:06
I've seen magazines articles advising that when carrying a pillion you should change up without the clutch so as to give the passenger a smoother ride.
Then again carrying pillions is probably another thing that shouldn't be too high on a beginner's list of priorities?
Which is exactly why I've never carried a passenger. I can't even ride my GSXR properly on my own.
AllanB
17th March 2014, 19:28
It can accidentally be done though when shifting gear as fast as possible. It's just easier to not use the clutch for upshifts.
Mate - I call bullshit :yes: If you want to upshift without the clutch fine but don't post shit like that
SMOKEU
17th March 2014, 19:34
Mate - I call bullshit :yes: If you want to upshift without the clutch fine but don't post shit like that
Where's the bullshit? If you find it easier to use the clutch all the time, then use it.
bawked
17th March 2014, 23:42
I was kinda poking the bear with this thread... I'm a mechanical engineer so kinda know what's going on in a bike gearbox and all.
Dog boxes rely on quick positive engagement, its not like clutchless shifting in a car where if there is an rpm difference you are using the synchro to bring up/slow down the speed of the whole engine... either the dogs line up or they don't... pretty simple.
When you clutchless upshift the engine speed reduces... for a given road speed, a smaller gear reduction means the input shaft speed is reduced.... hmm so that means the two are converging?!?! holy shit, that might make it easy for the dogs to mesh or some shit?!?!
With clutchless downshifting the engine speed is reducing whilst the input shaft wants to speed up.... whats the weak link here.... probably your rear tire! But what about my dogs teeth breaking with the huge forces on it!!?!?!! The forces are tiny, the force to spin your tire is near nothing when you are braking into a corner due to weight transfer. Also a well timed rev on a clutchless downshift works... its like magic or something!!
Clutchless upshift because it's fast and you'll be the coolest kid in town, revmatch and use the clutch when going down so you dont upset your bikes balance into the corner!
tobbera
21st March 2014, 09:57
I find upshifting without clutch being much smoother. And I'm lazy. So thats what I do.
unstuck
21st March 2014, 10:07
Only in the truck, when Im feeling lazy. Only time I dont use the clutch on my bikes, is when I have snapped a lever off. Each to their own I say, your machine, use it how you want.:niceone:
Banditbandit
21st March 2014, 10:25
Clutch cables snap, but I doubt most bikers could manage the run and jump starts required to get out of a busy city these days.
Yeah .. had that happen to me on a Meridan Triumph .. I wrapped the cable around my hand and hauled on it like hell. Lucky the bike was on Christchurch's Port Hills because I rolled it then let the cable go .. bike started and I got home OK - but I had to stall it to stop ..
Soldered up a new cable the next day ...
onearmedbandit
21st March 2014, 17:47
40,000+ kms on my gearbox with many many clutchless up and down shifts and no issue with my gearbox whatsoever.
Katman
21st March 2014, 18:03
...but I had to stall it to stop ..
Why didn't you just bump it into neutral before coming to a stop?
Motu
21st March 2014, 20:11
Dog boxes rely on quick positive engagement
It's the shifting mechanism that makes the quick positive engagement, not the fact that it's a dog box. Trucks have dog boxes, and they are not quick shifting ( but it can be done) . Cars gearboxes are also dog boxes, they just use friction clutches to help match dog speeds. Some trucks also have clutch brakes to match speeds faster.
I don't know what the problem is with clutchless down shifting, I've always found it easier than upshifts - even my slow old BMW does great clutchless downshifts, upshifts can be done, but require some skill and I don't get it right everytime. It's not a flick of the wrist like on a dirtbike.
SMOKEU
21st March 2014, 20:27
40,000+ kms on my gearbox with many many clutchless up and down shifts and no issue with my gearbox whatsoever.
I was about to say that you'd be the best person to comment on gearbox longevity with repeated clutchless shifts since you have the actual experience with it.
Berries
22nd March 2014, 22:06
I used a dutch girl more than once.
Oh clutch. This text is too small.
SMOKEU
22nd March 2014, 22:20
I used a dutch girl more than once.
Tell me more.
unstuck
23rd March 2014, 05:24
I used a dutch girl more than once.
Yeah, me too. Then she moved in with my brother and had kids and shit. What a strange world it is.:scratch:
avgas
23rd March 2014, 08:20
I used a dutch girl more than once.
How long did she last on your drive-shaft? Burned plates or did you use a good lubricant? (I'm assuming a wet sump - but let me know if this was not the case)
R650R
23rd March 2014, 13:58
Why didn't you just bump it into neutral before coming to a stop?
Probably might have been a huge effort balance wise and strength to do that.
Reminds me of a Volvo FL6 metro truck where the clutch hoodaki failed, 6 speed synchro box. Was a big company where everyone caned the gear too and their breakdown backup for drivers was shocking.
So rang them and told them an issue but can probably get it back to yard. Shifted nicely up and down almost roadranger style just rev matching and easing load.
Left it in first at junctions, stalled if needed to stop then just cranked the starter like hell and fired out into busy roundabouts nicely :)
unstuck
24th March 2014, 06:53
Probably might have been a huge effort balance wise and strength to do that.
Reminds me of a Volvo FL6 metro truck where the clutch hoodaki failed, 6 speed synchro box. Was a big company where everyone caned the gear too and their breakdown backup for drivers was shocking.
So rang them and told them an issue but can probably get it back to yard. Shifted nicely up and down almost roadranger style just rev matching and easing load.
Left it in first at junctions, stalled if needed to stop then just cranked the starter like hell and fired out into busy roundabouts nicely :)
Those Volvo 6 speeds only need the clutch for stop start anyway, such a smooth box for a truck. More like a car box really. Most people develop a lazy leg when driving them for a period of time.:2thumbsup
Banditbandit
24th March 2014, 09:33
Why didn't you just bump it into neutral before coming to a stop?
It wouldn't ... it was a trick to get neutral even when stopped and with the clutch in ... easiest way was to turn it off then find neutral ... old Triumphs you know ..
BoristheBiter
24th March 2014, 11:28
It wouldn't ... it was a trick to get neutral even when stopped and with the clutch in ... easiest way was to turn it off then find neutral ... old Triumphs you know ..
New KTM's as well.
Big Dog
24th March 2014, 12:14
Some modern bikes lock you out of neutral when moving.
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Drew
24th March 2014, 17:02
Some modern bikes lock you out of neutral when moving.
Sent from my iPhone using TapatalkKawasaki's lock you out of second until you are moving. That system fucks out often, and when it's working makes them a cunt to clutch start.
Big Dog
24th March 2014, 21:15
Never owned a box like that myself. Was riding one when a good alternative seemed to be grabbing neutral and coasting the rest of the way to bike shop. Bastard would not go in until the magic < 20k was achieved. Brand spankers ex250 with a faulty clutch or tranny. I was trying to take it for compliance. Road it back to workshop instead.
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