Designed by a German tuning specialist to upgrade any 800cc boxer produced from 09/1980 to 1000cc without the need to change or modify cylinder heads, carburettors and exhausts.
This kit consists of two nikasil plated alloy cylinders, two graphite forged, light weight pistons (each weight reduced by approx. 140g), the corresponding sets of piston rings and gudgeon pins.
Supplied with stainless steel pushrod tubes fitted. A top end gasket set is also supplied with this kit. They are designed for straightforward installation in about two hours. Benefits include an increase in power from 49.3 to 59.2hp with the R80GS or 63.1hp for the on road models (using standard BMW 1000cc barrels and pistons with 800cc heads can result in a decrease in engine power output!)
In addition to increased power outputs the kits reduce emissions and fuel consumption and increases torque from the original 57Nm to 72Nm and produce a much smoother spread of useable torque throughout the rev range. More details available on request. Compression ratio 9.5:1.

The Bosch spark plug WR6DC SIA38145A or NGK plug SIA38145D is required for this conversion (sold seperately)