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ProX Crankshaft Oil seals are made at the O
Uses Vertex #23925
High performance exhaust valves
designed to ease the assembling
Piston cap shape and design optimized to improve the fire front and getting a higher compression ratio
STM CLG Off-Road Koppeling kit ProX Crankshaft Oil seals areSTM CLG CLUTCH Through the partnership with the best MXGP teams STM has reached the maximum performance following an R&D evolution in 3 steps: 1 aluminium (light) 2 aluminum and steel (light and durable) 3 skeletonized steel (+ light + durable) The new innovative design introduces a new concept of clutch: no more barrier for the lubrication of all the components and an easier disks sliding. The famous STM springs allows a better start than the