660cc 81mm RACING stock bore Piston Kit by Gabro Racing Team

660cc 81mm RACING stock bore Piston Kit by Gabro Racing Team

Single ring, raised compression pistons kit.

Description

The kit includes 2 racing pistons with an 81mm bore, crafted from solid aluminum through CNC machining. Raised 14.2/1 compression (13.5 stock) they need to be used at least with 100 octane (EU).

Who This Product is For

It fits any RS660 (2021–2024) and Tuono 660. It’s a race product, it needs a proper assembly including ring gapping and valves to pistons clearances check.

Technical Details

The single ring design and enlarged valve pockets allow the use of the OVERSIZED EXHAUST VALVE KIT.
The kit uses the stock compression ring, oil scraper ring, piston pin, circlips for the piston pin, and cylinder head gasket. These components, if needed, must be sourced separately.

https://www.aspecialparts.com/shop/engine/piston-ring-first-2a000734/

https://www.aspecialparts.com/shop/engine/third-piston-ring-2a000739/

https://www.aspecialparts.com/shop/engine/piston-pin-2a000630/

https://www.aspecialparts.com/shop/engine/seeger-ring-piston-pin-2a000450/

https://www.aspecialparts.com/shop/engine/cylinder-head-gasket-rs660-tuono-660-tuareg-660/

NOTE: DELIVERY APRIL 2025