With all the extra power available from the Sport engine, up from the standard Imps 38bhp to a much better 55bhp and at 6100rpm, the designers uprated the drive shafts.
The cast iron 3/4 inch shaft was beefed up to stronger 1 inch size, that has prooven strong enough for most engines, including the 998cc ones. The picture shows the competition drive couplings, note the red code paint on them, this denotes the better grade.
Roy
The cast iron 3/4 inch shaft was beefed up to stronger 1 inch size, that has prooven strong enough for most engines, including the 998cc ones. The picture shows the competition drive couplings, note the red code paint on them, this denotes the better grade.
Roy
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