Glixal ATKS-042 GY6 125cc 150cc High Performance Racing Variator Kit with 13g Roller Weights for Chinese 4-Stroke 152QMI 157QMJ Scooter Moped ATV Engine Front Clutch Variator Outer Diameter:115mm Variator Inner Diameter:24mm Bush Size: O/D:24MM; I/D:15mm; Length:51.5mm Roller Sets Weight: 13g Roller Weight Size: 18x14 mm