Drz sprokets sizes

[Uinneag]

Off road not used on the road mainly boggy rocky terrain

should I go for smaller front, rear?? how many teeth

standard front 14 rear 47
thanks in advance
Johnny

 

[Mzokk]

Hi, You are running 14/47. So one down at the front will be the same as 3 and a third up at the back. Depends an how much you want to alter the gearing...a smaller front sprocket generally gives the chain a harder time but you could do that with the existing chain. If you go up two or three teeth at the back you'll probably need a new longer chain. I've got a spreadsheet somewhere which does gearing effect based on gearbox ratio's an rev's somewhere I'll send it to you if I can find it. On a bike smaller front sprocket and larger rear lower the gearing.

 

[Greg Masters]

Stick with 14 on the front. Go bigger and you can't fit a case-guard; go smaller and it increases the wear on the chain.

If you're not using it on the road, I'd start with 14/50, but you might need a longer chain (you can test that with your current set-up. Move the rear wheel fully forward and see how many teeth on the rear you can overlap the chain on).

Greg

 

[Noel]

Hi, don't take this the wrong way but I think gearing is all down to how you ride whats right for one person may not be suitable for the next, what makes you want to change the gearing? ie stalling, to quick when it gets tricky?????

 

[Timpo]

14/48

My 2000 DRZ400 has 14/48 final drive ratio and it just about right for me, but I'm no specialist off road/enduro rider.
T.

 

[Mzokk]

Heres the gearing spreadsheet. Got the gearing for my GSXR in it at the mo but all you have to do is get the gearing ratio's from the handbook of any bike and fill in max revs and max power revs and it'll give you an idea of what gearing you can get away with!!