TZR Forum

TZR Specific => 3XV => Topic started by: JKV45 on October 09, 2025, 03:32:43 PM

Title: Rear sprocket for 3XV1
Post by: JKV45 on October 09, 2025, 03:32:43 PM
Is there a U.S. source for replacement rear sprocket for a 3XV1?

I can find a JT steel front sprocket (14T), and a 520 chain (110 links), but I would like a steel rear sprocket (37T) with the OEM design.

Is there a better gear ratio than stock for general street riding?

1991 TZR250R 3XV1

Thanks.
Title: Re: Rear sprocket for 3XV1
Post by: ybk on October 10, 2025, 03:29:08 AM
@JKV45 Not sure about US sources but if you can find a TZ sprocket then you can drill the mounting holes from 8 to 10mm which will then fit.

I run a 13T front sprocket for street riding. Sacrifice some top end to make it a bit more responsive round town.
Title: Re: Rear sprocket for 3XV1
Post by: JKV45 on October 10, 2025, 04:14:18 PM
Quote from: ybk on October 10, 2025, 03:29:08 AM@JKV45 Not sure about US sources but if you can find a TZ sprocket then you can drill the mounting holes from 8 to 10mm which will then fit.

I run a 13T front sprocket for street riding. Sacrifice some top end to make it a bit more responsive round town.
I may go that route.

The 3XVs are limited to 125 MPH - right?  Are the RPMs limited as well?

Will it still get close to top speed when geared down?

Not like I plan to run that fast, just curious.

Thanks.