CVT Sleeve Naraku Speed-Up Kit 20x38mm GY6 \/ Kymco 2T \/ 4T

Variator Sleeve Naraku Speed-Up Kit 20x38mm GY6 \/ Kymco 2- \/ 4-stroke with 15 variator shims (0.1, 0.2, 0.5mm). Shims are used to improve shifting performance and build a faster engine. they’re placed between front pulley and variator sleeve to move the pulley further out.

inner diameter: 14.10mmouter diameter: 20mmlength: 38mm