Top speed question, GEARING for street use.

Its interesting that the new 05 and 06's come with 15/45 stock now .

I havn't double checked cause I hadn't heard this but I am pretty sure mine still has the 14/48, it feels geared very short.

I havn't double checked cause I hadn't heard this but I am pretty sure mine still has the 14/48, it feels geared very short.

Painkilla's from New Zealand... over here in the States theyre still 14/48 stock

I also tried tracking a 16 tooth cs down with no luck. Good idea with th 16, but I am going with 15/48 to keep my good low end. 15/45 may be the best for dual sport. Not sure but i like the power with 14/48 and want to keep it somewhat.

Cool... I'm running 15/48 now and it wants longer legs still.... It'll still power

wheelie in 3rd... 45 might be a bit too long though, I'll try a 46. just one tooth

but it'll make a difference.

JT makes all sizes and you can pick one up for about 28 bucks through

Cycle Depot.

Cool... I'm running 15/48 now and it wants longer legs still.... It'll still power

wheelie in 3rd... 45 might be a bit too long though, I'll try a 46. just one tooth

but it'll make a difference.

JT makes all sizes and you can pick one up for about 28 bucks through

Cycle Depot.

15/48 is the gearing for Score International Races....(Baja). You'll have plenty of speed with that gearing and still have enough low end for the slower stuff. :thumbsup:

15/48 is the gearing for Score International Races....(Baja). You'll have plenty of speed with that gearing and still have enough low end for the slower stuff. :thumbsup:

Yup, they say:

"Final drive gearing of 14/45 for BITD and 15/48 or 15/47 (Mexico) for SCORE events offering a smoother power delivery and the best (forwards) wheel placement."

What's BITD stand for? .....

Best in the Desert... :thumbsup:

Found a 16 tooth cs sprocket for 650r. Sprocketspecialists.com Part# is 617-16.

Found a 16 tooth cs sprocket for 650r. Sprocketspecialists.com Part# is 617-16.

Dude.. youre the man! ..... but heck for $40 I could get a Aluminum

rear 46... Then again it is easier swapping out the front than the rear.

Thanks 2000 xr650r, you'll not belive how I've searched for that 16 :thumbsup:

Plus it'll "shorten" the chain and not make it longer like a 46 rear would. Plus 1 for you! :thumbsup:

I wonder if there's room inside the sprocket cover for a 16T ?

For those of you who like to see numbers and graphs:

(The numbers are exceptionally close to Max Power's numbers)

XR650R with 15/48 sprockets

XR650R with 15/45 sprockets

Looking at the slight difference in lower speeds, and the outrageous torque of the 650R, 15/45 probably won't feel any different at the lower first gear speeds.

For those of you who like to see numbers and graphs:

(The numbers are exceptionally close to Max Power's numbers)

Looking at the slight difference in lower speeds, and the outrageous torque of the 650R, 15/45 probably won't feel any different at the lower first gear speeds.

Thanks LotsOfBikes.... 70mph at around 5000rpm sounds sweet to me. :thumbsup:

now that you could do all day and the motor will fall asleep. :thumbsup:

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