Are you running two chains for dual purpose?

**bart** · 6th May 2010, 17:51

With my back wheel the 39 tooth sprocket on the road wheel was similar gearing to about 42 on the normal wheel. The rolling diameter comes into play when comparing road and offroad tyres and rims.

Just another confusing thing to think about.

**choppedxs** · 6th May 2010, 20:15

Hmmm the whole wheelie thing is very attractive and I think is enough for me to toss the 40 tooth and use the 46 I just found lying around the garage (who knows what its off but it seems to fit the suzuki pattern - must be off an old DR350 I had). Still has a bit of wear left so will give it a whirl and see how it runs. Just recounted the front sprocket and its a 14 not a 13 so a 14/46 will be the test (I think the chain will just fit (according to gear commander it will need to be 26mm shorter which I may just squeze out of adjustment). Gear commander reckons my new top speed will be 144 (wound out) which is not bad I guess.

**JATZ** · 6th May 2010, 21:41

Originally Posted by choppedxs

Hmmm the whole wheelie thing is very attractive and I think is enough for me to toss the 40 tooth and use the 46 I just found lying around the garage (who knows what its off but it seems to fit the suzuki pattern - must be off an old DR350 I had). Still has a bit of wear left so will give it a whirl and see how it runs. Just recounted the front sprocket and its a 14 not a 13 so a 14/46 will be the test (I think the chain will just fit (according to gear commander it will need to be 26mm shorter which I may just squeze out of adjustment). Gear commander reckons my new top speed will be 144 (wound out) which is not bad I guess.

Beware the even teeth to even teeth scenario......
I read somwhere on the interweb it's a bad thing. But I could be wrong

**choppedxs** · 6th May 2010, 22:36

Yeah the gear commander website deals with that. The wear will actually be slightly better then my current setup which is 14/52. First time I have heard of this. Wonder what wears the chain out faster the number of times a tooth hits the same link or the amount of crap and dirt that gets into a chain when dirt biking.

**jafar** · 7th May 2010, 15:01

Originally Posted by choppedxs

Yeah the gear commander website deals with that. The wear will actually be slightly better then my current setup which is 14/52. First time I have heard of this. Wonder what wears the chain out faster the number of times a tooth hits the same link or the amount of crap and dirt that gets into a chain when dirt biking.

The amount of high stress you put on the chain is also a consideration. all other things equal the guy who wheelies his bike will wear out the chain faster than the guy that doesn't. Same for tyre wear , fuel economy & component failure.

**bart** · 7th May 2010, 20:55

Originally Posted by jafar

The amount of high stress you put on the chain is also a consideration. all other things equal the guy who wheelies his bike will wear out the chain faster than the guy that doesn't. Same for tyre wear , fuel economy & component failure.

Must be why the missus is always bitching about my bike shop account.