Silly bugger

[Sniper]

http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbikes/Sports-tourer/auction-54302762.htm

Read the second question.

[Crasherfromwayback]

Maybe I should contact him and offer to sell him a wider one....
Far easier to use.

[Colapop]

or a stretchier one. (is 'stretchier' a word?)

[nodrog]

you have to watch those powerbands, i think the old ones were made of rubber, its best to upgrade to kevlar or titainium ones! :)

[Motig]

I like the question, wish I'd thought of something like that:killingme

[Crasherfromwayback]

you have to watch those powerbands, i think the old ones were made of rubber, its best to upgrade to kevlar or titainium ones! :)
lol....nah. Not enough 'give' mate!

[Lord Derosso]

I know petrol is expensive but are we reverting to powerrubberband drives already???? Crasher - let me know when the latest models come into the shop please!! Do you think there will be a reduction on the import tax for this 'green' machine. How many wheelies per rubber, and of course you would have to be careful about talking about your rubbers when around girlies.

[beyond]

:lol:

I reckon he thinks it's a wind up toy of something.
There's one in every corner eh? :)

[kro]

or a stretchier one. (is 'stretchier' a word?)

It is now !!
Ask him if the power band breaks, can you get home using a head band?.

[Swoop]

With spelling like that, he should certainly be in a skyline....
with his hat on backwards as well...?:eek:

[Scouse]

what a fucktard

[Smorg]

haha word up fuckarse. Sounds like he just got out of his 323 rotor:laugh:

[Drew]

I've got me an A 100, do you think I could get a power band for that? It could really use one.:stupid:

[N4CR]

I think he was meaning one of these...

<IMG src=http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=30555&stc=1&d=1145768572 >

[gamgee]

how does someone that stupid own a bike that good??

[Lord Derosso]

Sniper. I havent had such a good laugh for ages. Powerband indeed ! :killingme

Is it suppose to be an optional extra or something.

[Blairos]

He should have asked if it was a Battery Powerband, or a Mains Powerband

:laugh:

[White trash]

Give the fucken kid a break. Poor bugger's probably had no experience what so ever with bikes, no one ever told him or showed him. Which is why he's selling it.

I remember when I was seven, pointing at the coil on my KT250 and telling my mates "That's the powerband right there!"

Edit: I forgot, you guys knew everything about bikes from day one.

(It is fucken funny though)

[Jantar]

I can recall many years ago trying to sell a car to a young guy. He didn't know much about how cars worked, and asked if he could bring a mate with him who knew a thing or two. I agreed, but I think even the potential purchaser was a bit taken back by the statement his mate made.

The mate: "I think it needs a valve grind"

Me: "Could be, but I haven't noticed any loss of compression or any other indication."

The mate: "No, I really think it does need a valve grind. But maybe it doesn't need a new one, you may be able to get a good second hand one from the wreckers."

The sale didn't go ahead.

[Edbear]

Hey I gotta get me one of those...!!!! Do you think Coleman's would stock special Suzuki ones?

[Lord Derosso]

I knew everything from day one. After all.. if I wasn't so modest I would be perfect. More to the point though... is it really possible for bikes to have more than one powerband, or was someone BS'ing me when I was learning the talk to do the walk etc etc. Perhaps some smartass could explain the how's whys and whens of powerbands. I mean obviously its to do with the gearing but I will be the first to admit that I just take it for granted once I have found the range at which each bike hits it. I just ride the bloody things, I dont get into the fiddling around especially after what happened to me some months ago because I got smart and wanted to look under the tank..

[White trash]

I do believe it's just when an engine in it's most efficient rev range, making the best use of the fuel/air mixture and ignition timing available to it.

It refers to the "band" of revs the bike makes the most power in.

[gamgee]

http://www.trademe.co.nz/a.asp?id=54587673#qna

[Edbear]

I do believe it's just when an engine in it's most efficient rev range, making the best use of the fuel/air mixture and ignition timing available to it.

It refers to the "band" of revs the bike makes the most power in.



I knew that....!!! Seriously though, this has been one of the most vexing areas of development for manufacturers - trying to broaden the powerband to make engines more efficient. The internal combustion engine is only about 30% efficient and has a relatively narrow powerband, hence the development of variable valve timing and lift with powerful computers controlling things. IMagine the performance if they could get over 50% efficiency!

[Ixion]

,,,More to the point though... is it really possible for bikes to have more than one powerband, or was someone BS'ing me when I was learning the talk to do the walk etc etc. Perhaps some smartass could explain the how's whys and whens of powerbands. I mean obviously its to do with the gearing ,,,.

Yes, perfectly possible to have several "powerbands" on a bike.Though normally we call the gap between them a flat spot. The old OHC singles often had one powerband (though they weren't called that then) as it came "on the cam", and then another , more powerful one, as it came "on mega". It's nothing to do with gearing, it is to do with engine revs. Some engines have very steep power curves. The area outside the steep part produces little power, the area within the steep part, lots. Hence, in the powerband. The practical effect is that you start off trying to accelerate, nothing much happens, you twist the twistgrip right round, the bike accelerates slowly, sluggishly, you think, "What a dog".The all of a sudden it reaches X rpm, and the front comes up like a striking snake (not a Cobra though, they would never be so illmannered) and clobbers you on the back of the head. Then, if it's a Kockasucky, and it succeeds in tipping you off, it will come back down and dance a victory dance on your mutilated body. Vicious brutes.

[Sniper]

http://www.trademe.co.nz/a.asp?id=54587673#qna

I nearly had a fit. I could hardly understand a single word those "homies" were saying

Post edited, thanks Ixion

[Ixion]

Honies ??? I think you mean homies, bro.

Sigh. The homie selling it admits he has no bike licence. The homie thinking of buying also has none. Obviously neither of them have a mechanical clue. Poor, poor, poor li'l two smoker. Petal and Phoebe are sobbing over it right now. And they consider Whangarei to be 8 or 9 hours from Taupo! Darwin is the only one going to come out ahead on this.

[Crasherfromwayback]

I like it.

[N4CR]

I have a sad story to tell about the later high powered 250 2 stokes.. my mate (13 years riding, he is 19 heheh) had two of his mates die within 2 months of eachother (after owning 2 stokes for 2 and 3 months respectivly) after getting them as first bikes. One hit a pole the other I cannot remember how he died. But yeah, this might be another tale like that if they are stupid enough. <_<

Blah blah 2 strokes are bad.. no, mabey a bit more tricky (later 250 2's) and not the best 1st bike but you just need to have common sense. 250 IL4's are enough to get you in the shit, same with any other bike really.... Just take heed if you are thinking of doing the same thing.

[Bend-it]

You're all a bunch of giggly schoolgirls laughing at the dork across the hallway... But it is pretty funnay!! Hahah!!

Jonathan2003's much too honest! Let's toss another spanner in the works... Haha!!

[Sniper]

You don't approve?

[Krayy]

http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbikes/Sports-tourer/auction-54302762.htm

Read the second question.
Which just goes to prove that if someone points out that you're lacking a bit of vital knowledge or make a stupid statement, don't admit it!! Laugh it off and tell the guy whos hassling you that that you KNEW it was a windup, and the reply was made with tongue firmly in cheek. Better that than reply with a very meek "k...".

[lti]

i dont think he got it when he said "k..." i think he was still as confused as before.

[Lord Derosso]

I should have revised my earlier question but thanks for the excellent techno information. What I meant to ask is .... do manufactors design a bikes powerband to certain riding conditions. eg surely race bikes would have huge powerbands covering practical rev ranges, and road bikes at certain revs to facilitate overtaking etc.???? Or perhaps they cant really 'design' a powerband as such, it just exists, and lastly do cars have them? Having never owned a car, and barely remembering driving one, I dont know and am curious. Thinking we notice it on bikes due to power/weight ratios??????

[Krayy]

I should have revised my earlier question but thanks for the excellent techno information. What I meant to ask is .... do manufactors design a bikes powerband to certain riding conditions. eg surely race bikes would have huge powerbands covering practical rev ranges, and road bikes at certain revs to facilitate overtaking etc.???? Or perhaps they cant really 'design' a powerband as such, it just exists, and lastly do cars have them? Having never owned a car, and barely remembering driving one, I dont know and am curious. Thinking we notice it on bikes due to power/weight ratios??????
Ahhh...now the floodgates will open with all sorts of techno-mechanical-physics type answers, so I'll try to get in quick with my non-technical 2 cents worth.

The answer is, it depends on what the bikes intended audience is. If you're trying to sell someone a cruiser or tourer that will pull you and 3 saddlebags worth of junk around the countryside, you would want an engine that has a "fat" powerband (for want of a better term). This means less shifting, ad when you hit a hill, you just wind it on some and the donk pulls you to the top nice and easy. These engines usually have a nice torque curve and pulls fairly consistently over the whole rev range.

Now if you're a racer, what you want is peak power all the time to provide the best acceleration out of corners. These engines will usually produce most of their power near the top of the rev range, and will be geared so that an upshift will still keep the engine within that band. Torque curves on these engines will look flat at the lower end, then peak really suddenly over the last 2-3k of the rev range, but will generally be shorter than a lumpier donk.

try: http://vettenet.org/torquehp.html
and the most excellent: http://auto.howstuffworks.com/horsepower1.htm

[Ixion]

I should have revised my earlier question but thanks for the excellent techno information. What I meant to ask is .... do manufactors design a bikes powerband to certain riding conditions. eg surely race bikes would have huge powerbands covering practical rev ranges, and road bikes at certain revs to facilitate overtaking etc.???? Or perhaps they cant really 'design' a powerband as such, it just exists, and lastly do cars have them? Having never owned a car, and barely remembering driving one, I dont know and am curious. Thinking we notice it on bikes due to power/weight ratios??????
Yes, they do design them around usage. Race bikes will have a very narrow power band. Thing is , it's hard to make an engine produce maximum torque over a wide rev range. Engines are tuned for optimum performance at a certain rev range. The more you try to "spread out" that range the more you have to pull down the peak torque , and thus power. So, a tourer will have a "broad" power band. Wider, so there is reasonable power across a wide rev range - you don't want to constantly have to be changing gears when touring- but less maximum power - it's a tourer. A sprotsbike will go the other way - aim for maximum power, even it means that the rider has to change gear lots to keep the revs up.

Cars are not usually nearly as highly tuned as bikes - which is why you don't notice the powerband - it's so broad that it's not perceptable on most cars. But the Alfatoy, for instance, has a quite discernable powerband between 5000 and 8000 rpm. It's just more highly tuned than most cars.

[Drew]

Yes, they do design them around usage. Race bikes will have a very narrow power band. Thing is , it's hard to make an engine produce maximum torque over a wide rev range. Engines are tuned for optimum performance at a certain rev range. The more you try to "spread out" that range the more you have to pull down the peak torque , and thus power. So, a tourer will have a "broad" power band. Wider, so there is reasonable power across a wide rev range - you don't want to constantly have to be changing gears when touring- but less maximum power - it's a tourer. A sprotsbike will go the other way - aim for maximum power, even it means that the rider has to change gear lots to keep the revs up.

Cars are not usually nearly as highly tuned as bikes - which is why you don't notice the powerband - it's so broad that it's not perceptable on most cars. But the Alfatoy, for instance, has a quite discernable powerband between 5000 and 8000 rpm. It's just more highly tuned than most cars.
All you have said is true and correct to my knowledge, up untill recently that is.
However, the very clever sods at BMW(cage type) have an entirely different new system, they have done away with the throttle! Replacing it with fly by wire computer jazz. How much more efficient could it be you might ask? Extreemly, because the way it works, is by making valve timing, lift, and duration variable.
Sounds easy dont it, but think about it, if those things are all being adjustedf fifty times a second, the motor is running at it's peak performance, nomatter wher the tacho is pointing, nomatter where your foot is on the gas, and nomatter how much load it's under.
It will still accelerate slower up a hill with a trailer, but it will be as close to perfectly tuned to that task as the engine can be.
Torque curve turns intop flat line at the point where a curve was at the top, same thing with power.
Now HOW FUCKIN COOL WILL THAT BE ON A GIXXER THOU?!


Rant over, stay off the PEEEEEEEEEEEEEE!!!

[Lord Derosso]

Best of series been on various TV stations....

why do we put a jet engine into a bike??

because we can!

[imdying]

lmao @ the bullshit in this thread... looks like most people have some idea though. I'd be concerned more about the front fairing only having one of four bolts, and even that one being the wrong type. It's a piecea alright.

[Drew]

Feel compelled to bite at "bullshit" remark...can't hold back....going to a happy place...urge overcoming me...grrrrrrrrrrrraaaaaaaaaaaaggggghhh.




That was lucky, vein in me forehead popped and I blacked out long enough to control myself.....




I really need to take myself less seriously.

[GSX-RJIM]

you have to watch those powerbands, i think the old ones were made of rubber, its best to upgrade to kevlar or titainium ones! :)


HAHAHAHAHAHAHAHAHAHAHAH

[gav]

Quite right, kept looking for this nice bike, all I see is a shitty old NSR250! :zzzz:
However powerbands, depends what colour band you use, this thread may help!! http://www.thumpertalk.com/forum/showthread.php?t=358415
:yes:

[Stevo]

I am surprised that fella tryin to swap his V8 Statesman (with any sportsbike) hasn't entered into this one. I give that fella 10 points for persistence

[Stevo]

Quite right, kept looking for this nice bike, all I see is a shitty old NSR250! :zzzz:
However powerbands, depends what colour band you use, this thread may help!! http://www.thumpertalk.com/forum/showthread.php?t=358415
:yes:
Three words:
Only in America!:rofl: