Here is the top engine complete ATHENA 185cc Ø63mm for your YAMAHA 125cc WR X and R from 2009 to 2010. This cylinder will not only allow you to refurbish your bike but also to gain a lot in performance. This kit allows you to go from 13hp at 9300 rpm to 16,5hp at 8000 rpm! This means that you have more power much sooner which is not negligible in cross or enduro. This top motor is delivered complete as on the photo. It is thus delivered with its reprogramming box and its CD to be able to make a reprogramming to measure without risk of breakage, the cylinder, piston, ring, joint as well as all the parts necessary for a good assembly of this one. This kit is of course of excellent quality as well as the nyckasil. No need to remind that ATHENA is a renowned factory that produces quality and reliable products! Clearly a kit much more powerful than the original while remaining very reliable. Attached below the power curve and the mounting instructions for download.

Fits on:

YAMAHA YZF 125cc 2008

YAMAHA YZF 125cc 2009

YAMAHA YZF 125cc 2010

YAMAHA YZF 125cc 2011

YAMAHA WR125R 125cc 2009

YAMAHA WR125R 125cc 2010

YAMAHA WR125X 125cc 2009

YAMAHA WR125X 125cc 2010