Yamaha YZ 450 F (CJ 21) [2016-2017] - Replica forged pistons

VERTEX Replica forged pistons for the Yamaha YZ 450 F (CJ 21)

The VERTEX Replica forged piston is for the Yamaha YZ 450 F (CJ 21) from the years 2016-2017. The forged aluminum version is designed for 4T use and combines a precisely manufactured piston shape with the specified standard dimensions.

Function and execution

The piston is manufactured as a forged precision piston in the VERTEX manufacturing process. The design is tailored to the standard compression of the associated engine and has a compression ratio of 12.5:1. VERTEX specializes in engine components for off-road machines and is used as an original equipment manufacturer by motorcycle manufacturers and teams in the MX World Championship.

Technical data

• Brand: VERTEX
• Piston type: forged
• Material: aluminum
• Diameter: Ø96.94 mm
• Letter oversize: A
• Oversize: STD
• Bore diameter: 97.00 mm
• Piston compression: standard
• Compression ratio: 12.5:1
• Version: 4T

Vehicle assignment

The VERTEX Replica forged piston is suitable for the Yamaha YZ 450 F (CJ 21), built between 2016 and 2017.

The information on diameter, oversize, bore diameter and compression enables a targeted comparison with the existing engine version. In particular, the vehicle assignment as well as the dimensions and markings mentioned must be taken into account when making the selection.