Stoppies

Been watching some stunt videos and was wondering how a stoppie works?
They're easy enough on the pushy, but a pushy is light, and very top heavy,
and when you do it, the bike stops. How do these guys get a 200kg motorcycle
to lift the back wheel while still rolling forward? On one clip a guy rides
the front wheel for over 500 ft.
I would've though that just jamming on the front brake would slide the bike
from under you (as I 've just about done a few times doing emergency stops),
so how does it work?

 

Pull the brake lever in gently to start then pull harder. Hard enough to
lift the rear but not too hard/sharp to lock the front.

Easy really.

Aaron
ZX6R

 

fooking 'ell, got a video?

 

its simple. front brake goes on, front suspension is compressed with weight
transfer, weight transfer keeps going and rear wheel becomes air borne, im
guessing they ease off the brakes a little to keep rolling now. the rear
wheel will be spinning, this keeps the bike inline with centrafugical force,
if the rear wheel stops, then the bike will probably swing around it self as
weight transfer does its best to make you go arse over end..

Im also guessing its in the quality of your brakes, more bite gives you more
force, im also guessing a heavier bike may be easier,a s more weight being
transferred, but I could be wrong, im a two fiddy rider until xmas.

cheers
Nathan

 

Ah well that rules out another thing shafties don't do.
Bloody telelver front end does not compress enough to even attempt a stoppie.

 

I got the back wheel in the air on the R1100RT, smee. I didn't like it.
Neither did Mrs CH who was the pillion, but the ABS did its job and saved
the front from skidding. Skidmarks aplenty elsewhere though!

 

(Note, this is advice from someone who doesn't do intentional
stoppies, so read it with all that authority in mind

Its all about getting the weight transfer right (well - mostly,
anyway - some bikes just won't do it - long low bikes, cruiser
style, are likely to _always lock the front before stoppieing).

The reason you've seem people lock the front on emergency stops
is usually because thay're doing it wrong[1]. If you grab a big
handful of front brake on just about any bike, you will lock the
front wheel. If you do it "properly", using the technique the NSW
RTA ridier training calls "setup and squeeze", then you are
_much_ less likely to lock the front, and on many bikes will lift
the rear wheel off the ground. You need to brush the front brake
lightly, let the front suspension compress, then gently squeeze
more and more lever pressure on, further compressing the
suspension, and also flattening out they tyres contact patch.

Its actually not that hard - I can tell when I'm pushing my
limits coming into turn 9 at eastern creek - I change down 2
gears on the way in there, and usually the rear wriggles round a
little each time I let the clutch out - sometimes tho, I'm on the
brakes hard enough that it doesn't... Thats when I'm _extra_
careful about making sure I'm off the brakes before tipping in
for the turn...

big

[1] Yeah yeah Clem, just ask Zebee...

 

the rt?
farknell that would have been some feat.
dunno if the r1100s would be able to tho

 

Did I need to say that it was not done on purpose?

 

I don't think that fork compression or dive has too much to do with it.

When you're two-up with rally gear on the bike the vast majority of the mass
of the whole shebang is way above axle-height. Combine braking force with
front-tyre traction and you'll get a rapid lightening of weight at the back,
and a squishing of firm ample breasts into your back, and a compression of
nutsack into tank, and an unrequested stoppie.

Sounds easy. Scared the bejesus out of me.

Wheelies? Nah, they take a bit of skill and planning.

--
Conehead
"Your credibilty along with all the other people arguing in this thread has
been totally distroyed... I am copying this thread and will send it... but
I'll send it not to the parents, but to a couple of magazines I know..."
kiwipete in a hissy-fit

 

Firm?...no. Ample?....unfortunately, yes.

 

FFS no pics.

Aaron
ZX6R

 

....and just to prove me wrong someone went and broke that record the
weekend before last so the new record stands at 266 metres (873 feet)

Nev..
'02 CBR1100XX #2

 

It's a bit like popping monos on under powered bikes Clem - throw your weight in
the desired direction to help it lift and then balance..

The TRX didn't have any better forks than the XJ I don't think. It's more about
brakes, and tyres anyway. I'd only do them intentionally at lower speeds -
Aaron's 100K is more than I'd do - try 'em at 20-30K. Sticky tyres and good
brakes make it easier. When the forks start compressing throw your weight
forward (and try not to lock up the front

JL
(stoppies are easier than monos...)

 

Stoppies are easier but once you get to the point of no return with a
stoppie you're fucked. At least with a wheelie you can mash (assuming you
don't miss it) the rear brake and hopefully that'll do something for you.

Aaron
ZX6R

 

It was entertaining watching the Police bikes getting air between their rear tyres and terra firma
at the Sandown cornering and braking sessions a coupla years ago.

Dale Porter

 

I'm slowing for the lights at Aspley and I thought I'd give it a go so I pull on the brakes until the forks
are right down and then I lean forward and squeeze a bit harder and CRACK!!
I think I might put off further attempts until I've replaced the 150,000km-old steering-head bearings.....
Clem
( I bet the person behind me thought "crack" too, as he watched my arse rise up into view!)

 

pull on the brakes until the forks

150,000km-old steering-head bearings.....

He probably thought, "That reminds me, I must post the Christmas presents
earlier this year".

 

Uhoh, forgot the warning, stoppies at traffic lights are high risk,
when cars regularly stop at a place what do you often find ? Oil .
This can be nasty when you're on the front wheel and you suddenly lose
traction...

JL