New top & bottom end rebuild kit for Yamaha YZ 250F

Crankshaft and connecting rod 

Crankshaft bearings

Vertex std bore piston 

Complete gasket & seal kit made to meet or exceed OEM* 
All new assembly.

Photo is generic, you will receive the correct parts for the model listed

* Crankshafts are sold complete with Wiseco connecting rods and inner crankshaft webs.
* Factory assembled and trued to within .001.
* Ready for installation.
* Crankshafts are completely rebuildable.