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Why no CF wheels on GP bikes

Started by Spidey, September 19, 2008, 04:04:19 PM

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Spidey

I always wondered why they don't run CF wheels on GP bikes.  I've heard some explanations, but wasn't sure what the real scoop was.  Well, straight from the horse's mouth--

Quote from: MotoLiam;4334311They're so stiff they can crack when the tires are being mounted.  The beads on the GP tires are really (REALLY) tough, because the carcasses can flex so much and deform under braking and acceleration.  If the beads aren't strong enough, I've seen tires completely spin around on the rims, too.  I've had forged Mag wheels break during installation and removal, and if you consider that CF needs to be replaced every time there's a crack or chip, then knowing that wheels take a lot of damage (rocks, bumps, etc), then you're looking at replacing a large amount of material every season (whereas Marchesini will check and repair our rims in the off-season and as necessary).  There are a couple 125/250 teams that have used CF wheels in the last years, but this is not common.  Consider that on my private team alone, we're using around 50 rims at any given time.   $$$.
Occasionally AFM #702  My stuff:  The M1000SS, a mashed r6, Vino 125, the Blonde, some rugrats, yuppie cage, child molester van, bourbon.

darylbowden

YEah, that and the fact that if you're not using marchesini, you won't be using brembo either plays into it a good deal.

Also, Red Bull Yamaha used CF wheels on their GP bike back in the days of the 500s.

Spidey

Quote from: darylbowden on September 19, 2008, 04:10:31 PM
Also, Red Bull Yamaha used CF wheels on their GP bike back in the days of the 500s.

Ya know when were dat, D? 
Occasionally AFM #702  My stuff:  The M1000SS, a mashed r6, Vino 125, the Blonde, some rugrats, yuppie cage, child molester van, bourbon.

derby

Quote from: Spidey on September 19, 2008, 04:04:19 PM

Well, straight from the horse's mouth--


i'm gonna tell liam you called him a horse.  ;D
-- derby

'07 Suz GSX-R750

Retired rides: '05 Duc Monster S4R, '99 Yam YZF-R1, '98 Hon CBR600F3, '97 Suz GSX-R750, '96 Hon CBR600F3, '94 Hon CBR600F2, '91 Hon Hawk GT, '91 Yam YSR-50, '87 Yam YSR-50

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derby

-- derby

'07 Suz GSX-R750

Retired rides: '05 Duc Monster S4R, '99 Yam YZF-R1, '98 Hon CBR600F3, '97 Suz GSX-R750, '96 Hon CBR600F3, '94 Hon CBR600F2, '91 Hon Hawk GT, '91 Yam YSR-50, '87 Yam YSR-50

click here for info about my avatar

mitt


derby

Quote from: mitt on September 19, 2008, 05:35:54 PM
Do you supposed it really helped the Confederate hunks of junk bikes?

helped 'em cost more.  ;D
-- derby

'07 Suz GSX-R750

Retired rides: '05 Duc Monster S4R, '99 Yam YZF-R1, '98 Hon CBR600F3, '97 Suz GSX-R750, '96 Hon CBR600F3, '94 Hon CBR600F2, '91 Hon Hawk GT, '91 Yam YSR-50, '87 Yam YSR-50

click here for info about my avatar

mitt

Quote from: derby on September 19, 2008, 05:37:00 PM
helped 'em cost more.  ;D

I liked that site until they had the turds dropped in the middle.  You should really tell them to cut them out, and keep it performance orientated.

mitt

ducpainter

Quote from: darylbowden on September 19, 2008, 04:10:31 PM
YEah, that and the fact that if you're not using marchesini, you won't be using brembo either plays into it a good deal.

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tufty

I'd have a 140hp Hellcat with it's 120ftlbs of torque in a New York minute!!

I reckon it'd would just about keep up with a M620. :D