When it comes to upgrading your engine, choosing the right components is essential for achieving optimal performance.Namura’s cylinders and cylinder kits are designed to meet the needs of both casual riders and performance enthusiasts alike.By offering a variety of sizes, including +5mm big bores, Namura ensures that you can find the perfect fit for your engine rebuild or enhancement project. The advantage of choosing Namura goes beyond just their selection of cylinders. Cylinders Brand new and designed strictly off of OEM specifications. cast from ab4c aluminumWith nickel silicon carbide plated bore. this allows our cylinders to have some of the best wear capabilities in the market. most cylinders are simple drop in install with no case modifications necessary.Fit Yamaha YZ125 (2005-2021)Ceramic Composite CylinderUsed standard bore 53.95mm Piston
