Thanks to the collaboration with the best MXGP teams, STM has reached the maximum performance after an evolution of R&D
evolution in 3 stages:
1 aluminum (light)
2 aluminum and steel (light and durable)
3 skeleton steel (+ light + durable)
The new innovative design introduces a new clutch concept: there is no more barrier for the lubrication of all the components and an easier sliding of the discs.
The famous STM springs allow better starting than the clutches currently on the market.
This drum/non-drum achieves maximum innovation with the CLG SKELETOR
APPLICATIONS OF THIS PRODUCT: According to the data provided by the manufacturer, this article is compatible with the following brands, models and years: YAMAHA YZ 450 F (CJ23) 450 2019-2021