Cylinder Works / Wiseco Standard Bore Kit For YZ450F (2010-2013) – 97mm Piston 12.5:1 Compression & Gaskets

If you're rebuilding the top end on your 2010-2013 YZ450F, this kit has the good stuff.

It's a combo from two top brands: Cylinder Works and Wiseco.

You get a standard bore cylinder, a Wiseco piston at 97mm with a 12.5:1 compression ratio, and all the gaskets you need to button it up.

The manufacturer part numbers are 20005 for the cylinder and 40001M09700 for the piston kit.

This is everything you need to refresh your motor and get back on the track with some fresh power.

All parts are brand new and ready to install.