Note: Does not work with any 2008-2009 Yamaha RS Vector models with 973cc engine or 2008-2010 Yamaha RS Venture models with 973cc engine. Comet has confirmed they do not offer clutches ore calibrations for these models.
- The 108 4-Pro utilizes four clutch weights rather than three, greatly enhancing tuneability.
- Due to adding a fourth load bearing member, the roller and button life is increased.
- New moveable sheave bushing and redesigned fixed face for increased durability & reliability.
- Higher heat and wear resistance extends clutch performance.
- Captivated tower allows the shouldered cover bolts to virtually eliminate tower spreading.
- 30mm 1:10 taper
- 1-3/8″ wide belt.
- All 108 4-Pro clutches are shipped uncalibrated and come without cam arms and springs.
- Arms can be used in sets of two, to allow you to zero in on the amount of weight desired.
- To determine cam arm, add weight of 3 arms used for 108-EXP, add 14%, then divide by 4 – this will be the new cam arm weight to use
- Equipped with bosses on the fixed face for mounting starter gear.
- Use our 217336A clutch puller with this clutch.
