The S1R aluminium cylinder is equipped with a 5-transfer scavenging booster exhaust ports. Aluminium provides better heat release and it is nikasil-coated. In consequence, we get a low-coefficient friction surface and a great resistance. Solid chromed steel two-ring elliptical piston. DOPPLER recommends to associate its cylinder with the DOPPLER cylinder head.

Technical information
spare parts
Delivered with base gasket, piston, piston ring, clips and piston axle.

Piston Ø39.95 436386
piston ring 193223
gasquet head cylinder 195427
gasquet cylinder 214951
gasquet valve 440681

Indicative public price : 126.00€