Bet he's chuffed with the ABS

[98tls]

Love how this high tech stuff helps make us better riders.http://youtu.be/0t5ab4kTORI

[oldrider]

And the J walker gets away Scott free! .... man that was quick!

[Tigadee]

:eek5: Didn't see that coming!

Would the lower height/centre of gravity of a cruiser work better with ABS rather than the taller sports bike?

[onearmedbandit]

Same thing would've happened without ABS.

[98tls]

:eek5: Didn't see that coming!

Would the lower height/centre of gravity of a cruiser work better with ABS rather than the taller sports bike?

No idea Tig but i think we can conclude wearing dark visors at night doesnt help spot jaywalkers;)

[onearmedbandit]

:eek5: Didn't see that coming!

Would the lower height/centre of gravity of a cruiser work better with ABS rather than the taller sports bike?

Yup. Cruisers are more likely to lock a front than sportsbikes.

[george formby]

I'm a bit thick but how did that happen? I thought the ABS was permanently on?

Last time I saw something like that poor Sete Gibernaeu was riding.:eek5:

[onearmedbandit]

I'm a bit thick but how did that happen? I thought the ABS was permanently on?

Last time I saw something like that poor Sete Gibernaeu was riding.:eek5:

ABS won't stop you from flipping the bike, it stops the tyres from locking up.

[Tigadee]

Correct me if I'm wrong but I thought since ABS is supposed to stop tyres locking up and that looked like a stoppy gone wrong, why did the ABS not work in this case?

I mean, it was so sudden, it almost looked as if the bike's front wheel hit an fixed obstruction and flipped over as a result! :crazy:

[george formby]

Correct me if I'm wrong but I thought since ABS is supposed to stop tyres locking up and that looked like a stoppy gone wrong, why did the ABS not work in this case?

I mean, it was so sudden, it almost looked as if the bike's front wheel hit an fixed obstruction and flipped over as a result! :crazy:

I can only speculate that it was like flipping a rolling stoppie, no lock up but enough brake force to lift the back of the bike up & over. Happened real fast, good brakes & a lorra grip.

[ellipsis]

...maybe if they crashed in English it would be easier to figure out ...

[onearmedbandit]

Correct me if I'm wrong but I thought since ABS is supposed to stop tyres locking up and that looked like a stoppy gone wrong, why did the ABS not work in this case?

I mean, it was so sudden, it almost looked as if the bike's front wheel hit an fixed obstruction and flipped over as a result! :crazy:

ABS only stops the tyres(s) from locking up. In a stoppie you don't want the front locking up, you want as much braking force possible, this lifts the back of the bike up. So you could therefore argue that a bike equipped with ABS will have a greater chance of doing a stoppie. I say 'could argue' as on good pavement I can't lock up my front, and my bike doesn't have ABS.

[neels]

Good of the ped to stop and see if he was OK. :motu:

Looks a bit like he hit the picks and dropped the front wheel into the tram tracks...

[george formby]

ABS only stops the tyres(s) from locking up. In a stoppie you don't want the front locking up, you want as much braking force possible, this lifts the back of the bike up. So you could therefore argue that a bike equipped with ABS will have a greater chance of doing a stoppie. I say 'could argue' as on good pavement I can't lock up my front, and my bike doesn't have ABS.


LOL,
Same on mine until I'm doing about 5kmh & keep squeezing.

[Fast Eddie]

haha shiit that flipped over quick.

yea most sports bikes have got enough grip to do that without worrying about electronic aids. squeeze hard enough on the front and the tail will try n overtake ya in a leapfrog style

[Fast Eddie]

why did the ABS not work in this case?

hehe yea like has been said already. its stands for something like anti skid brake system.. the wheel didn't skid, it stopped reaaaallly quickly and the rest of the bike didn't. so it jumped over the front haha poor guy looked like he was trapped under there too.. maybe some broken bones

[p.dath]

Love how this high tech stuff helps make us better riders.http://youtu.be/0t5ab4kTORI

At least he did his braking in a straight line. :)

[bogan]

At least he did his braking in a straight line. :)

Looked more like a single point to me!

I thought some ABS were linked with angle sensors and accelerometers etc to stop that happening? Or am I just getting confused with anti-wheelie?

[SMOKEU]

I say 'could argue' as on good pavement I can't lock up my front, and my bike doesn't have ABS.

So if you pull on the front brake way too hard will it just lift the back wheel instead of locking up, assuming you're on a dry surface and don't snatch the brake lever too fast?

[Fast Eddie]

So if you pull on the front brake way too hard will it just lift the back wheel instead of locking up, assuming you're on a dry surface and don't snatch the brake lever too fast?

yea.. have you not tried to brake really hard yet? especially if your on a fun ride.. maybe 100k area coming up to a 35 hairpin or something..

or err.. on a track actually probably better.

[Fast Eddie]

I thought some ABS were linked with angle sensors and accelerometers etc to stop that happening?

sound plausible!

his one didn't help out like that though haha.. stopped quick though.

[SMOKEU]

yea.. have you not tried to brake really hard yet? especially if your on a fun ride.. maybe 100k area coming up to a 35 hairpin or something..

or err.. on a track actually probably better.

I've never had the balls to brake really hard on a bike. I'm too scared that I'm going to lock the front wheel and go for a tumble. I've got good tyres (Pilot Road 2) and near new front discs and pads.

[onearmedbandit]

Looked more like a single point to me!

I thought some ABS were linked with angle sensors and accelerometers etc to stop that happening? Or am I just getting confused with anti-wheelie?

Don't think the S1000RR does this, and a quick search on google found nothing suggesting they do.


So if you pull on the front brake way too hard will it just lift the back wheel instead of locking up, assuming you're on a dry surface and don't snatch the brake lever too fast?

Indeed.

[Gremlin]

So if you pull on the front brake way too hard will it just lift the back wheel instead of locking up, assuming you're on a dry surface and don't snatch the brake lever too fast?
It's physics vs grip.

Have less weight on the front wheel (accelerating or neutral load) and suddenly snatch the front and there is very little chance the tyre is able to overcome the momentum, ie, it can't grip, which means it locks instead and down you go. Brake a little first or pull on the brakes initially then ever increasingly harder (a little below a snatch) and you're giving a bit of time to allow the weight to shift forward which allows the tyre to grip better, more likely it will brake and not lock.

Of course, none of this (other than the video) takes into account the momentum of the rider :D

[tigertim20]

apart from him clearly being a bit hurt, that was awesome! the way it just sort of sat straight up, upside down by itself!! must be a BMW design to lubricate the top end?

[breakaway]

Bleyat!

I'm concerned that the tail of the bike might have landed on the poor bloke's bait & tackle!

[caspernz]

Crikey that almost seems like a what not to do video...speed along the central reservation and brake too hard for a J walker...end up pinned by your own bike.

But yep, I can easily see how that is possible. Even my teapot Suzi can lift the back end with not too much provocation on a dry road, so that Beemer with big discs and sticky rubber would be even easier.

Mind you, last time I encountered a J walker, I braked and shoulder nudged the git to the ground. More good luck than good management, and the police man seemed surprised the J walker left in the ambulance :brick:

[98tls]

Crikey that almost seems like a what not to do video...speed along the central reservation and brake too hard for a J walker...end up pinned by your own bike.

But yep, I can easily see how that is possible. Even my teapot Suzi can lift the back end with not too much provocation on a dry road, so that Beemer with big discs and sticky rubber would be even easier.

Mind you, last time I encountered a J walker, I braked and shoulder nudged the git to the ground. More good luck than good management, and the police man seemed surprised the J walker left in the ambulance :brick:

Last time i did was down in Dunedin on whatever day it is that students go nuts,stupid cunt stood in the middle of an intersection doing some drunken dance,lights went to green so i ran him over,saved him a hangover at least.

[caspernz]

Last time i did was down in Dunedin on whatever day it is that students go nuts,stupid cunt stood in the middle of an intersection doing some drunken dance,lights went to green so i ran him over,saved him a hangover at least.

The student or his blow-up doll girlfriend?

[mossy1200]

It almost seems like he may have droped the fork height at the front in the tripple clamps and made the bike sit to much weight forward. It just seemed to go over so quick. Maybe he set the suspension up very soft also.

[Coldrider]

That's what I'd expect from nicely heated up slicks, on the front anyway.

[Flip]

Looked like just another newby super bike rider, all flash gear and no ability.

[98tls]

yea.. have you not tried to brake really hard yet? especially if your on a fun ride.. maybe 100k area coming up to a 35 hairpin or something..

or err.. on a track actually probably better.

Many years ago i had the misfortune to be persuaded to take the Mrs on the back of the TL when a few of us headed over to the west coast,long time ago so details have faded but somewhere...fuck cant remember exactly which pass,i think coming back over but theres a 15km sign,i thought bollocks but :headbang:2 up i should have at least made an effort,hit the pics and her out back shot past me:wacko:yea yea i know but asd i type i reminded her of it and shes laughing,wasnt so funny at the time;)

[98tls]

Looked like just another newby super bike rider, all flash gear and no ability.

Can remember thinking the same about Evel:lol:

[bogan]

Don't think the S1000RR does this, and a quick search on google found nothing suggesting they do.

Wouldn't need to look any further than the vid I would have thought! For some reason I did think it was BMWs that had this system though, maybe on some of their other models...

[caspernz]

Well I've analysed the video closely and it's part of a new James Bond movie. The J walker actually jams an umbrella in the Beemers front wheel, thus rendering the electronic doodackery obsolete. There, we can all sleep soundly now...:baby:

[98tls]

Well I've analysed the video closely and it's part of a new James Bond movie. The J walker actually jams an umbrella in the Beemers front wheel, thus rendering the electronic doodackery obsolete. There, we can all sleep soundly now...:baby:

Fear not it wasnt ever going to stop the ZZZZZZZs.Flip summed it up well i thought.

[SMOKEU]

Wouldn't need to look any further than the vid I would have thought! For some reason I did think it was BMWs that had this system though, maybe on some of their other models...

I think Aprilia have it fitted to the RSV4.

[MaxCannon]

Poor fella looks like he had the fright of his life when that dude appeared out of nowhere.

Having had my arse saved 3 times in the wet by ABS (an older system too) I'm in no doubt of it abilities.

You can still lift the rear wheel - as has been pointed out.
ABS stops the tyre from locking thus allowing you to steer around the (taxi / car door / predestrian) that has suddenly and inexplicably (turned in front of you / opened in front of you / jumped in front of you).

Although I think it would be public service to run down pedestrians that don't look I believe the Police frown on this behaviour.

[Devil]

Wouldn't need to look any further than the vid I would have thought! For some reason I did think it was BMWs that had this system though, maybe on some of their other models...

Can only comment on my GSA, but that has linked brakes with ABS. If you get the back wheel off the ground, the wheel obviously stops (because the brakes are on), ABS kicks in and puts it back down...
Cant stoppie it unless you switch the ABS off.

[Gremlin]

Can only comment on my GSA, but that has linked brakes with ABS. If you get the back wheel off the ground, the wheel obviously stops (because the brakes are on), ABS kicks in and puts it back down...
Cant stoppie it unless you switch the ABS off.
This is interesting actually...

The linked brakes on a GSA are only partially integral. ie, pull on the front, the rear engages as well, pull on the rear, only the rear engages. To the systems, a locked rear sliding would be no different to a stoppie. Front rolling, rear not. In this situation, ABS would activate on the rear to stop the lock, but it wouldn't touch the front... From this understanding, it's theoretically possible to stoppie with the systems engaged? However, the GSA also has the telelever front end, which means no fork diving like conventional forks, ie, no weight shift compressing forks, which basically prevents a lot of rear wheel lift...

re the anti-wheelie comments, that's traction control. Again, measuring wheel speed differences to detect one spinning faster than the other...

[bogan]

This is interesting actually...

The linked brakes on a GSA are only partially integral. ie, pull on the front, the rear engages as well, pull on the rear, only the rear engages. To the systems, a locked rear sliding would be no different to a stoppie. Front rolling, rear not. In this situation, ABS would activate on the rear to stop the lock, but it wouldn't touch the front... From this understanding, it's theoretically possible to stoppie with the systems engaged? However, the GSA also has the telelever front end, which means no fork diving like conventional forks, ie, no weight shift compressing forks, which basically prevents a lot of rear wheel lift...

re the anti-wheelie comments, that's traction control. Again, measuring wheel speed differences to detect one spinning faster than the other...

Depends how the integration is set up I guess. That sort of linked brake system sound like it might just be an extra pot on the rear caliper running the same fluid as the front, so the front brake would need to be modulated to stop a rear skid.
Though that sort of setup is pretty silly (and probably not how they did it) cos ABS should keep each wheel applying max braking force until it locks up, and not be affected by any other wheel lock-ups.

[Gremlin]

Depends how the integration is set up I guess. That sort of linked brake system sound like it might just be an extra pot on the rear caliper running the same fluid as the front, so the front brake would need to be modulated to stop a rear skid.
Though that sort of setup is pretty silly (and probably not how they did it) cos ABS should keep each wheel applying max braking force until it locks up, and not be affected by any other wheel lock-ups.
The Honda Blackbird has 2 brake lines running to the rear caliper, the GSA only has one... not sure exactly on the mechanics of the caliper control for the GSA, but the ABS is definitely independently assessing the wheels as I've had ABS engage lots of times...