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Stage6 Streetrace 77cc cylinder kit for Derbi 50cc D50B Euro3/4 engines.
The Streetrace cylinder made its name on scooters, Stage6 has taken the knowledge gathered and applied it to geared mopeds. The 77cc cast iron cylinder has a 50mm bore, 5 transfer ports and a simple exhaust port. A twin ring piston is included along with a high compression aluminium cylinder head. Performance is increased from the bottom to the top of the rev range.
A 26mm carburettor, mid-race exhaust, reinforced clutch and racing crankshaft are recommended. A 3% oil mixture is also recommended.
As usual with big bore Streetrace cylinders, Stage6 has stamped "49ccm" on the cylinder for official amusement.
As soon as we get new stock for Stage6 Streetrace 77cc Cylinder Kit- Derbi D50B, we'll send you an email.