POWER KIT EXTRA UPGRADE TO 1000CC - BMW R75, R90 EARLY MODELS 1969-1975/ SIEBENROCK

The ultimate 1000cc conversion kit for all BMW R75 and R90 models with 97mm cylinder base opening, including all Head Gaskets and Installation Instructions.

The kit contains Nikasil coated cylinders with lighter (150g), spontaneous quiet running pistons. The kit also contains new piston rings, piston pins and stainless steel push rod tubes already installed in the cylinders. The piston shape is specially designed to require no further modifications to the head. All gaskets are included for installation!

The conversion increases torque and horsepower over the entire range of rpm's.

 

Specs:
Fits: BMW Airhead Models
Make/Model: BMW R75/5, 
R75/6, R90/6, R90S
Model Years: 08/1969 - 9/1975
Manufacturer #: 1100072 Siebenrock