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DRZ400S belt drive?

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Belts and dirt are a bad combo. Polaris 4x4 quads have belts and every one I've ever rode with that had one has shredded a belt. A belt on a dirt bike would be worse as it would be more open to the elements. Belts shine on the street because they are quiter.

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I had a 67 Yamaha U5 which was their version of a Honda Passport. it was great because while all my friends rode mopeds (talkin' early 80's) I had a 3 speed rocket that the cops couldn't tell was actually a motorcycle (back then there were no laws for mopeds in NJ we rode them like bicycles). But I degress. It had a fully enclosed chain and it always stayed clean, lubricated and rarely needed adjustment.

While a belt on a dirt bike would save weight it would need some sort of enclosure and would be near twice as wide as a chain and that is before it was enclosed in a clunky cover.

Edited by Dylan921

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It would be difficult to tension it properly during the entire range of motion of the swing arm (unlike a cruiser that has comparatively little range of motion), not to mention the first rock that gets flipped up in between the belt and sprocket would cut the belt. 

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Belts are not as compact as chain drives. Not very practical on a dirt bike with current belt technology.

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I spent some time researching this last winter for my SM  and  could not find any pulley's that would bolt on in place of the sprockets so , you would have to machine custom adapters to mount the pulley's .  Now their may some out their but I could not find any.    

Edited by suzuki sm nut 123

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It is an interesting idea for a road going SM...  

 

I'm just guessing that the belt would be about twice as wide as a 520 chain... the clearance needed for pulleys with that much width would probably be an issue on the SM...  It may require a modification to the swing arm as well...

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