tblrk2008

Member
Feb 24, 2008
40
0
Ive got an 06 YZ250 with the TMDesign Works rear chain guide. I have the stock 48 tooth on there right now. Can i go up a tooth or two and not fuq anything up? Not sure I want to mess with the front sproket.

Thx
 

atkkid250

Uhhh...
Mar 18, 2008
177
0
going up

going up a tooth or two will slow it down, but give it alot more torwuey feeling i believe. make it easier to take off. and it will burn rubber a lot better goingdown a tooth or two will speed it up a lot. what are you going for?>
 

Beuford

Member
Feb 23, 2008
37
0
I have a 06 YZ250 and the stock rear is a 50 tooth.
Unless you have a 250F, but even still i would think the clearance's are the same.
I dont know about clearance with your "t.m" guide.
 

tblrk2008

Member
Feb 24, 2008
40
0
Beuford said:
I have a 06 YZ250 and the stock rear is a 50 tooth.
Unless you have a 250F, but even still i would think the clearance's are the same.
I dont know about clearance with your "t.m" guide.


Its not stock according to the book, but it fits and thats what Im going with too.
 
May 1, 2007
85
0
The chain might rub the teflon in the guides for a few minutes, but it shouldn't hurt anything. I am running a 11t in the front and a 52t in the rear. It fits fine besides the fact that the chain was dragging the case. :(. I added a machine bushing behind the front sprocket to keep this from happening. 0.015in did the trick without offsetting the chain too much.
 

Jasle

Sponsoring Member
Nov 27, 2001
1,358
0
will really depend on how your chain was cut. you might need a new chain if the old chain was cut so the wheel was forward. a bigger rear sprocket, even 1 tooth, makes a big difference in where the wheel sits. might make it so you cannot get the chain on.
 
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