HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Team_Towrope

Need XR650 service manual info...

5 posts in this topic

Can anyone tell me the specs from their XR650R manual for the following...

1) Primary Reduction Ratio

2) Gear ratios for 1 - 5

3) Front and rear sprocket tooth counts

4) Rear wheel radius in inches

5) Max RPM or rev limiter number

I'm trying to calculate top speed.

Thanks,

Dax

Share this post


Link to post
Share on other sites

Primary reduction - 1.651

1st - 3.083

2nd - 2.125

3rd - 1.666

4th - 1.333

5th - 1.115

Sprockets - 14/48

Max RPM - 8500

Wheel and tire rad. - 13.25 inches to the top of the knobs.

Share this post


Link to post
Share on other sites

Has anyone reduced the primary sprocket to, say 13? I can't really use the wicked top speed of the XR650R, but a little more gearing for the rocks and tight trails could be fun. Hey, with the stock sprocket it is still a tractor.

MOOSE

Share this post


Link to post
Share on other sites

I'm running 13/48 right now. I have tried 14/50, 13/50 and 13/48 in addition to sstock 14/48.

The 13/48 is what I'm sticking with for dual sport riding and general riding out of my garage. For tigher trails I would go to the 13/50 which requires a longer chain (112pins verses the stock 110 pin chain).

Clark

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0