TB Piston Kit – 57mm, 13mm Pin – Lifan/TB V2 Head - TBW0823 28mm This is the part that

This is the part that stops your rear brake drum from rotating

Two valves in the intake valve and two in the exhaust valve increase the valve curtain area by increasing the number of valves to increase the intake and exhaust efficiency

The 2019+ EFI kit also fits the BBR triple clamps used on the CARD Cobra SX65 forks

& CRF50 K&N Type Air Filter

Full instructions provided along with any technical help needed

TB Piston Kit – 57mm, 13mm Pin – Lifan/TB V2 Head - TBW0823 28mm This is the part thatTB Piston Kit 57mm, 13mm Pin Lifan TB V2 Head TBW0823 High compression, large dome, lightweight racing piston. This piston is for use with Lifan big valve heads or our new TB V2 Race Head for Honda type Chinese engines (not the KLX110 type topend Chinese engines). Kit comes with Piston, Pin (13mm), Rings, and Clips.