The Stage6 Sport Pro 70cc MkII cylinder kit has been upgraded at several points and the high quality has of course been preserved. The performance has been raised a notch, so that it now produces up to 2 hp more, which i.a. is due to improved design of flushing channels and exhaust port. Stage6 is aware of many ports in their cylinders and improved dissipation of heat therefore has a lot to say. Precisely for this reason, the cylinder head has also been upgraded with cooling fins on the top and bottom. The piston is a Stage6 R/T Replica with a curved top and the same type of piston ring of 0.8mm as i.a. also used on the Stage6 R/T piston. For this cylinder kit, a spark plug with a short thread must be used - we recommend an NGK BR9HS . The cylinder kit is delivered complete incl. gaskets, piston, piston ring etc. NOTE: ø10mm cross pin. It varies whether the kit is delivered with one or more bottom pads. If there is more than one person, it is important that the target becomes a squish. The kit should run with a squish of 0.75 - 0.85 mm.
Specifications:
Note: The cylinder cannot be fitted to models from 2003->, unless the restriction in the engine block is removed. If the cylinder is fitted, it is no longer possible to use the original or other Euro2 exhausts. Both parts apply to models from 2003->. This does NOT apply to PGO engines.
Generally | |
---|---|
Bore | ø47,6mm |
Class | Racing |
Piston pin | ø10mm |
Displacement | 70ccm |
Flush canals | 6 |
Stroke | 39.2mm |
Exhaust port | Single |
Material | Alloy |