New product from British brand Blackbone RC, this clutch provides a consistent 8500rpm engagement rpm! 
 
Ideal for 26-36cc ported motors which need a higher engagement to bring the launch straight into the powerband for hard launch!
 
The spring is made from 3mm thick High Carbon British Spring steel and coiled as tight as possible on some custom spring tooling to get maximum rpm! 
 
Supplied as per photos with hardware