Casey Stoner at 1000fps

[speedbird591]

Here's one for MotoGP fans. A short Red Bull slo-mo video, taken at 1000 frames per second, of Honda rider Casey Stoner powersliding round a corner.

http://www.youtube.com/watch?v=Z4snkUUo ... re=related

Ian

[DaveB]

Cheers Matey

ATB
DaveB

[jonesey2k]

Another bike related vid that I liked http://youtu.be/GakGUvuJexI

[Paul K]

Looking at that slow motion video, its amazing that something can lean over that far without it slipping away from beneath the rider. It seems to be balanced on the point where centrifugal forces will either try to make it go upright, or overcome the grip on the side of the tyre and make it slide to the outside of the bend.

[DaveB]

Enjoyed that one Jonesey

Paul..
Yep, the centrifugal forces on a bike wheel will naturally want to keep the bike in one direction and be upright. There is an enormous amount of skill required to balance that with the grip of the tyres and many fail.. Stoner included. While there's no doubting his talent, he is on the quickest bike which helps more than a little

For some real bike action.. you really need to see the HD slow-mo shots taken at the IoM during TT week

ATB
DaveB

[Silversim]

Pretty damn impressive But are there any old f***s out there who remember "Moon Eyes" Cooper from the sixties who (I vaguely remember) was a great "lean out" merchant in his day

Geoff

[Garry Russell]

I used to lean right over in my biking days...all of the guys I rode with did.

[speedbird591]

For some real bike action.. you really need to see the HD slow-mo shots taken at the IoM during TT week

Absolutely. MotoGP is cutting edge technology and spectacle but the TT is the ultimate motor race. As Dave says, the new High Motion cameras show it like never before. Here's the Duke Video collection of the best HiMo clips from 2010.

http://www.youtube.com/watch?v=_aMhuOq0 ... re=related

Pretty damn impressive But are there any old f***s out there who remember "Moon Eyes" Cooper from the sixties who (I vaguely remember) was a great "lean out" merchant in his day

I certainly do, Geoff. It caused a great stir in the 60s as riders were admired for their neat, tucked-in riding styles - Mike Hailwood, Derek Minter etc and when John Cooper started putting his knee out and hanging off the side there was outrage. Until he started winning races and people realised that keeping the centre of gravity inboard meant you could corner faster for the same lean angle. I was one of his first disciples (on the road, of course) and had a large pair of moon-eyes on my pudding basin helmet. I soon got used to the hanging-off style and it was particularly useful in the wet as you could keep the bike more upright at the same speed. Nobody could beat me in the wet! (Except John Cooper )

Valentino Rossi has started a similar revolution by hanging his whole leg off the bike on the inside when braking for a corner. It looks as though he's totally out of control but he's transferring a large proportion of his body weight to the inside, moving the centre of gravity, using his leg as a speed brake to stabilise the bike and just as importantly preventing anyone nipping inside of him as they brake for a corner. There are a few riders doing it now but the effectiveness isn't universally acknowledged!

Ian

[speedbird591]

It seems to be balanced on the point where centrifugal forces will either try to make it go upright, or overcome the grip on the side of the tyre and make it slide to the outside of the bend.

The contact point between the tyre and the track is the size of a credit card. The bikes are capable of a similar top speed as F1 cars - 210mph. But as they only have the two small contact points (of which, half the time, only one is touching the tarmac) their cornering speed and hence lap times is slower.

Ian

[Silversim]

I certainly do, Geoff. It caused a great stir in the 60s as riders were admired for their neat, tucked-in riding styles - Mike Hailwood, Derek Minter etc and when John Cooper started putting his knee out and hanging off the side there was outrage. Until he started winning races and people realised that keeping the centre of gravity inboard meant you could corner faster for the same lean angle. I was one of his first disciples (on the road, of course) and had a large pair of moon-eyes on my pudding basin helmet. I soon got used to the hanging-off style and it was particularly useful in the wet as you could keep the bike more upright at the same speed. Nobody could beat me in the wet! (Except John Cooper )

Wow it's all coming back now Ian, you must have been about as loony as me!! It may have been a Tiger Cub initially but by god I felt like Rex Butcher (my hero on the circuits in the 60's). Later a Royal Enfield Meteor Minor Sports.......god I was flying

Best Regards
Geoff