The BMP Honda Grom Monkey Billet Crankcase has been engineered to improved reliability in big bore Honda Groms by improving crankcase rigidity.
Specifications:
(14-20) Honda Grom 125 and (19-20) Honda Monkey 125
Block Material: 6061 Billet Aluminum
77mm Bore Size
Design Improvements: Stronger shaft housing for starter Reduction Gear. Distortion of crankshaft housing is reduced through increase material thickness.