Very high quality Malossi crank for 12mm gudgeon pins. Typical Malossi high quality. Full cheek design for higher pre-compression, for max fill and moves the power band to the top end. Malossi cranks are always a good choice for quality and durability. Attention: note that the engine must be lightly modified for this crank. German language instruction manual included. Alternator rotor fixation with woodruff key.