Description
Vertex Forged-Replica Piston Kit Beta 390RR 16-21 87.97mm
- All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
- Forged Replica pistons are forged from 2618 aluminum for superior strength and durability
- Forged Replica pistons are forged OE replacements
- All pistons are heat treated with a T-5 hardening and tempering cycle
- Replica pistons and all rings are OEM replacements
- Kits include piston, rings, wrist pin and circlips
- Four-stroke piston rings sold as a set






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