14/53 Gearing -- 03 CR250

[tony91]

Any 02-03 Cr250 owners run this set-up? If so did you have any fit problems? I've asked around and done a search..everyone says it will bolt right up. But when I tried to install, it didn't fit on either end. Looks like I would need to relieve the case guard and chain guide. Any thoughts before I get to cutting? :yikes:

 

[shifting]

Although I can't anwser your question I do have one for you.
Why would you want to run 14/53 gearing? It has the same gear ratio as running 13/49 (stock13/48). You are adding weight with larger sprockets and a longer chain. I just don't understand why someone would do this. Please enlighten me. :bang:

 

[tony91]

I picked up the sprockets on the cheap last year. Didn't want to spring for another 13/49 set-up if these will work. Also, my suspension guy tells me that they'll help the rear suspension under acceleration in the small choppy stuff.

 

[tony91]

Something I just thought about...when I was fitting it up, I used the old chain. Would that have any effect on fit?

 

[Faded]

Something I just thought about...when I was fitting it up, I used the old chain. Would that have any effect on fit?

Yea, too small. :cool:

 

[tony91]

I deserved that.... :moon: :)

 

[Borch297]

For Supercross the riders comment that the sprockets produce less "squat", out of corners. You will probably have to grind quite a bit out of the chain guide so the sprocket does not hit. The CR125 swingarm's chain guide is mounted farther forward and does not require modification.