Pistons kit by Gabro Racing Team 660cc 81mm "RACING"
2 racing pistons, 81mm bore, crafted from solid aluminum through CNC machining. Raised 14.2/1 compression (13.5 stock). Use at least 100 octane (EU).
It fits any RS660 (2021–2024) and Tuono 660. Please note it need a professional assembly (ring gapping and valves clearances), it’s a race product.
You can use the OVERSIZED EXHAUST VALVES KIT by GRT
81 mm diameter, 660cc high compression, single ring, race motor, single ring, OK for oversized valves, no rings supplied (you can use the stock ones), stock pins, stock circlips.