TWH Secondary Sliding Sheave Assembly for Honda DIO 50cc-90cc scooter engines. This adjustable secondary slider plus sliding sheave from TFC will give you quicker takeoff and higher top speed. The 2 different linear options mean you can give more emphasis to acceleration.

Includes the following Secondary slider (torque driver), Sliding sheave, Spring seat, O-rings, and Clutch nut.

•    1x Rear Pulley Plate OD: 118.5mm / Shaft ID: 17.43<21mm / OD: 34<45.1mm / H: 68.73mm
•    1x Secondary Slider Plate OD: 118.5mm / Funnel ID: 33.5mm / OD: 43mm / H: 32.70mm
•    1x Secondary Spring Seat/Funnel ID: 43mm / OD: 45<61mm / H: 30mm
•    3x Secondary Slider Pins OD: 5<6mm / H: 9.5mm
•    1x Stainless Steel Clutch Nut: M28
•    2x Rubber O-rings (pre-installed)
•    Made in Taiwan
•    Fit Clutch Socket: 39mm
•    Fit Clutch: 107mm / Shaft Nut: M10 / Washer: M10 / Bearing Funnel: 43mm / Bell Spline: 22 / Socket: 14mm
•    Fit Belt Size: 654, 669-18-30
•    Fit Compression Spring: 1k, 1.5k, 2k rpm
•    Fit Clutch Springs: 1k, 1.5k, 2k rpm
•    Fit Dowel Pin Set (8x10mm)
•    Fit DIO 50/90cc+