Engine cooling fan mount contain carbon fibre cross piece and aluminum stopper permitting alot more resilient hold energy the engine and wait tight various size areas.
Specification:
The carbon fibre cross piece become a tensioner to give you a safe hold towards engine.
Only one screw is key to install and dismount the fan after initial make.
With all the ultra light design, the total fat of mount is under 5.8g.
Carbon soluble fiber cross piece for both 30mm and 40mm.
Additional scrub screw mounting holes permit better hold if need.