Primary Gears Bidalot Racing Factory Derbi Euro 3 (D50B0)

Bidalot Racing Factory Transmission Kit Derbi Euro 3 (D50B0), complete high-end primary transmission by tuning specialist Bidalot.

This complete transmission with clutch and primary gears by Bidalot Racing Factory will reduce clutch slipping, especially in larger displacement engines with lots of power. Gear ratio of this transmission differs from the original – taller gears reduce the overall gear ratio, smaller gears increase it. Maximum input shaft rotation will kick in more quickly so pressure on the clutch is reduced to improve clutch grip and avoid slipping. In addition, the clutch basket is made of solid aluminium which allows for mounting 6 discs instead of only 4. Clutch slipping is avoided and all available power is transmitted to the wheel.

Note: using this primary gear kit will eliminate the kickstarter.

The kit includes:primary transmission no 

primary gear 21 teethprimary gear 64 teethwater pump gearpinion for counterbalance shaft2x needle bearingsclutch basket CNC-cutclutch bell CNC-cut6x friction plates + 5 steel discs5x racing clutch springsscrews