Could a "heavy" racer win?

[Robert Taylor]

Hmmm.....recent races. 'Somethings' holding him back....
But yeah ok, its unlikely to suddenly be his weight thats slowed down the Dr.

No longer being on a Yamaha is a major cause.....................

[FROSTY:Me]

I keep thinking of an old auckland club champ--Bubbles grey. He was a fairly large chap yet stil wone a race or three

[quickbuck]

Well i can happily say im one of the more heavier guys out there - im 92kgs after a hard game of squash - add my riding gear, and a weekend on the booze and id hate to think!

Ya bloody feather weight.....
After burning 700 KCalories 3 times per week at the Gym, I am still over the tonne, with shoes on..... (they do weigh 600 gramms)..... Of course, muscle weighs 3 times what fat does...

[Moooools]

Stuff molecular level bonding and tyre heat. How about some plain old physics?

A heavy rider takes more force to accelerate at the same rate. This force has to come from the tyre friction on the track. They have more friction due to the extra weight, but also need more friction to accelerate.

Same goes for breaking.

Cornering also requires a friction force from the tires acting towards the centre of the corner. This increased with increased weight. The same principle of more friction and more weight applies.

I won't do the equations but I can tell you that the equations for how fast a rider can accelerate, brake or corner without losing traction will not be related to mass.

This does not mean that heavier the same as lighter in all situations, just that a all riders experience the same amount of grip. Unless they are crap.

[Robert Taylor]

Ya bloody feather weight.....
After burning 700 KCalories 3 times per week at the Gym, I am still over the tonne, with shoes on..... (they do weigh 600 gramms)..... Of course, muscle weighs 3 times what fat does...

Well at least its a no brainer that Air Force ( or what passes for it after Helens ghastly purge ) are faster than grunts or those from the ''senior'' service.

[gixerracer]

Stuff molecular level bonding and tyre heat. How about some plain old physics?

A heavy rider takes more force to accelerate at the same rate. This force has to come from the tyre friction on the track. They have more friction due to the extra weight, but also need more friction to accelerate.

Same goes for breaking.

Cornering also requires a friction force from the tires acting towards the centre of the corner. This increased with increased weight. The same principle of more friction and more weight applies.

I won't do the equations but I can tell you that the equations for how fast a rider can accelerate, brake or corner without losing traction will not be related to mass.

This does not mean that heavier the same as lighter in all situations, just that a all riders experience the same amount of grip. Unless they are crap.

All riders experience the same amount of grip???? BOLLOCKS
Has nothing to do with many things listed so far comes down to what tyres they are using what compound that tyre is and what pressures they are running and also how well they bike is set up

[schrodingers cat]

Stuff molecular level bonding and tyre heat. How about some plain old physics?


I won't do the equations but I can tell you that the equations for how fast a rider can accelerate, brake or corner without losing traction will not be related to mass.

Force = Mass x Acceleration.

So, FAIL.

Unless you have found a way past the 2nd law of motion...

[Shaun]

All riders experience the same amount of grip???? BOLLOCKS
Has nothing to do with many things listed so far comes down to what tyres they are using what compound that tyre is and what pressures they are running and also how well they bike is set up

Proffessional test rider job coming your way dude

[davebullet]

This thread is USELESS without pics!..

"rider sag" anyone?

[Shaun]

This thread is USELESS without pics!..

"rider sag" anyone?

ha, looks like this guy is using the NEW TYRE Profile of 120-0-17 front 180-0 17 rear

[Matt Bleck]

ummmm hasn't Nick Cole won a 600cc NZ championship?

[Shaun]

ummmm hasn't Nick Cole won a 600cc NZ championship?

Yes But he is now about 20KG; less than he used to be 2 or so years ago

[jellywrestler]

ummmm hasn't Nick Cole won a 600cc NZ championship?

So did Jared Gillard who from memory was 100kg and 6foot five at the time

[Crasherfromwayback]

So did Jared Gillard who from memory was 100kg and 6foot five at the time

Did that ginga wilderbeast finally win a 600 title? Good show if he did.

[Shaun]

So did Jared Gillard who from memory was 100kg and 6foot five at the time

Jared was at least that size, and rode bloody awsome