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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Drivetrain » Secondary Drive: Sprockets, Belt/Chain, Ratios » When to go to a chain? « Previous Next »

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Bombardier
Posted on Saturday, January 26, 2008 - 09:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

At what point in the search for more power has a chain become a necessity?

Do the belts break from the shear power of the engine at some point or do they not like it when the drivetrain is abused by dropping the clutch and spinning the wheel?

Does the tensioner not quite have the tension to stop the teeth riding over the sprocket or does the belt just snap from full power situations?

Curious because I am looking to adapt a previously CAD designed forced induction system to the XB series and want to know if the belt will be able to take it whilst not being abused.
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Jlnance
Posted on Sunday, January 27, 2008 - 07:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Pammy is getting over 150 hp on her X1. I can't quite tell from the picture on her website, but it looks like it's still running a belt:

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Clutchless
Posted on Sunday, January 27, 2008 - 10:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Belts can take all kinds of forward torque load from the bike, I.E. if your doing burnouts and whole shots thats fine, its meant for that kinda stuff. Its meant to hold the load of heavy acceleration and soak up engine surges.

Just dont down shift real hard and dump the clutch cause it causes cracks and tears teeth off the belt.

I dont see you having any problem with that belt being weak if you dont load it the wrong direction.

I'm thinking most racers on buells switch to chain to be able to replace or repair in a flash, since you cant just run a belt around the pulleys and connect like a chain.
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Reepicheep
Posted on Sunday, January 27, 2008 - 01:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My KLR-250 chain lasted less then 8,000 miles, so if you are running more then 17 RWHP, I'd stick with the belt : )

(I think belts break because of mishandling, foreign object damage (rock puncture), or mechanical issues (bent pulley / misaligned sprockets, rubbing, etc).

I would bet a belt is strong enough to withstand as much torque as any street tire is capable of imparting before it breaks loose... so you can't make a motor strong enough to break unless you are running drag racing rubber. Otherwise, the belt is still fine long after the power of the engine is just spinning the rear wheel.
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Alessio66xb12r
Posted on Monday, January 28, 2008 - 02:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

belt is clean , nice to see , but i don't see so much broken chains like i see broken belts.
WHY ???
if you have a sport style riding better a chain ....just an opinion
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