There are 7 products.

The recommended clutch springs for all FinBro engines

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FinBro camshaft for the 125cc Honda Grom/MSX125


FinBro balanced crank with forged rod and upgraded bearings.


BBK enthusiasts and future builders should know how fast this roller breaks down. In some cases just with 500 miles of runtime with more powerful 4V heads and even stock engines.


STREET PISTON: New 125cc Flat Top piston for the Honda Grom.  Honda Grom stock compression: 9.3:1 FinBro 125 Flat Top Street Piston: 10:5


RACE PISTON: New 125cc Dome Race piston for the Honda Grom. Shorter reach plug is included due to high compression piston.  Honda Grom stock compression: 9.3:1 FinBro 125 Dome Race Piston: 12.1


FinBro modified OEM Honda oil pump pick up More pumps arriving shortly, place order now to guarantee yourself one.

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