Gear primary drive and clutch

Product no.: AJ5000061
Price plus VAT, plus delivery
Delivery weight: 4.11 kg

From our experience in racing, we offer you a straight cut gear primary drive to replace the original chain drive design , featuring a 7075T6 billet aluminum and hard anodized clutch basket.

- Weight savings

- Improved efficiency (horsepower)

- Improved reliability

- Reduced maintenance cost - stop replacing chains!

- Lighter clutch pull/less fatigue 

- Easy to install

Our design provides a hydraulic-like, minimal clutch lever force to effectively double the force exerted on the clutch plates, which transmits all the power of the motor to the track - where it belongs!

It is manufactured with the highest quality standards available, as proven after a year of competitive tests with excellent results. A 2 hp power increase from 43 to 45 hp was measured above the original chain design as well as improved acceleration throughout its' power curve (as recorded on our dynomometer and on the Blumaq 250cc Bultaco).  All this achieved with zero drive component failures.

In order to see parts and components for repair this assembly, please go to 'Parts and components for AJ5000061' section


Product Note Status Price
spacer clutch cover spacer clutch cover
24.00 € *
Special cluts holding tool Special cluts holding tool
6.00 € *
* Prices plus VAT, plus delivery
Display accessory details

Customers who bought this product also bought

Delivery weight: 0.3 kg
Delivery weight: 0.022 kg
Clutch spacer plate
2.92 *
Delivery weight: 0.1 kg
Clutch cover Gasket
4.50 *
Delivery weight: 0.1 kg
Main Central Gasket
from 3.50 *
Delivery weight: 0.005 kg
* Prices plus VAT, plus delivery

Browse these categories as well: Special Parts for Bultaco, Parts & components for Kit AJ5000061, Primary drive and clutch