In the fifties and early sixties, British offroad motorcycle manufacturers generally based their product on the readily available Villiers 197cc 9E engine, but more power and reliability was required. In 1964 Greeves built their own 250 cc engine, the Challenger. Basically a crankcase bolted to an existing Albion gearbox, it worked quite well. The limiting factor was the dated Albion box and compared to the new unit construction CZ it didn't quite do it. Joel Robert won the championship on the CZ.
2 comments:
CZ-best transmission in the business! Would shift under full power without using the clutch, huge advantage in MX. All I can say about Greeves is crude right up until the end.
Even the interesting and arguably innovative cast aluminum frame seems agricultural.
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