Gearing change on WR250X

Hi All,

I just went from a 17" rims on my Wr250X to 18/21 stock set-up from a WR250R. The rear sprocket from the WR250R is one tooth bigger now. Does that throw off my speedo now on the x now? And do I need a speedo healer?

Any change you make to the stock setup will change your speedo.

I can't help but think you're off now, but don't take my word for it, go here: http://www.12oclocklabs.com/sdrd_calc.htm


Type in what your bike had stock, and then type in what you have now, and BLAMMO .... you'll see how far off you really are.