Im putting my 125 on the road to putt around my small town. what gear ratio would be good for this? does it make sense to change both front and back or can I just go up a bunch with the front sprocket to save money?
drz 125 street legal
Started by
mustardTiger
, May 28 2012 06:29 PM
4 replies to this topic
Posted 29 May 2012 - 01:55 PM
Go too big on the front (or too small on the rear) and you'll have to ride the clutch excessively to get it going. Personally (without having done this), the stock gearing ain't so bad for local roads, maybe +1 on the front to save a couple bucks and make the chain last longer.
FWIW, don't bother going too wide on the rear tire, it's gonna get all mashed and 20% of the tire will never be used. This is a 110 on a 1.6 wide rim after a day at the mini-moto track.
As you can see, even at maximum lean much of the tire is unused. 90-100 wide will work just fine and won't look dopey.
I plan to swap this rim to a 2.5" wide as soon as finances allow. However, you could try to find a tire with a greater aspect ratio (instead of 90%, look for 100 or 110) which will do the same thing on the road as a larger front or smaller rear sprocket.
FWIW, don't bother going too wide on the rear tire, it's gonna get all mashed and 20% of the tire will never be used. This is a 110 on a 1.6 wide rim after a day at the mini-moto track.
As you can see, even at maximum lean much of the tire is unused. 90-100 wide will work just fine and won't look dopey.
I plan to swap this rim to a 2.5" wide as soon as finances allow. However, you could try to find a tire with a greater aspect ratio (instead of 90%, look for 100 or 110) which will do the same thing on the road as a larger front or smaller rear sprocket.
Edited by Smacaroni, 29 May 2012 - 01:55 PM.
Posted 22 July 2012 - 01:16 PM
im running 16/47 steal sprockets and its fine mate beats my friends xt125 supermoto
Posted 23 July 2012 - 04:23 AM
Smacaroni, on 29 May 2012 - 01:55 PM, said:
Go too big on the front (or too small on the rear) and you'll have to ride the clutch excessively to get it going. Personally (without having done this), the stock gearing ain't so bad for local roads, maybe +1 on the front to save a couple bucks and make the chain last longer.
FWIW, don't bother going too wide on the rear tire, it's gonna get all mashed and 20% of the tire will never be used. This is a 110 on a 1.6 wide rim after a day at the mini-moto track.
As you can see, even at maximum lean much of the tire is unused. 90-100 wide will work just fine and won't look dopey.
I plan to swap this rim to a 2.5" wide as soon as finances allow. However, you could try to find a tire with a greater aspect ratio (instead of 90%, look for 100 or 110) which will do the same thing on the road as a larger front or smaller rear sprocket.
FWIW, don't bother going too wide on the rear tire, it's gonna get all mashed and 20% of the tire will never be used. This is a 110 on a 1.6 wide rim after a day at the mini-moto track.
As you can see, even at maximum lean much of the tire is unused. 90-100 wide will work just fine and won't look dopey.
I plan to swap this rim to a 2.5" wide as soon as finances allow. However, you could try to find a tire with a greater aspect ratio (instead of 90%, look for 100 or 110) which will do the same thing on the road as a larger front or smaller rear sprocket.
Same tire on the wider rim:
And as you can see, it's being drivin almost to the edge of the tread:
