Stage6 R/T Cylinder Head Combustion Chamber "MK I" d=47.6mm / h=2.5mm Piaggio NRG / Yamaha Aerox

Stage6 R/T Cylinder Head Combustion Chamber "MK I" d=47.6mm / h=2.5mm Piaggio NRG / Yamaha Aerox. Stage6 came up with a series of special combustion chamber inserts to further improve the performance of the Stage6 R/T 70cc cylinders. Modified angles and different depth of the combustion chamber allow for extended port timings and increased compression.

Available in 5 different versions with varying depths.

• 1x combustion chamber insert 2.5mm
• without gaskets, screws etc.

Note: if you don't know the size / depth of the original head insert - you'll find it next to the piston size marking (A, B or C).