clutch friction material

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The clutch I've been talking about is on a speedway Vincent sidecar my younger brother has built. The clutch is new and I think it is a Barnett. It resembles the clutch off a Japanese superbike, a Suzuki I think. My brother recently rode the bike and the clutch started slipping immediately, so now he's fitted much stronger springs. The problem is that every time he takes the bike out even to practice, the cost is about $300. I don't think a clutch which slips on back off would be good on speedway. There are no brakes on the bikes. I think he will end up in the situation where he has to change the friction materials on the clutch plates. My brother builds a beautiful bike and this one is a restoration, so I don't know how it came to be 1400cc capacity - it's a 1970s bike. He's probably built about 4 Vincent speedway sidecars so far and never had this problem.
 
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acotrel said:
The clutch I've been talking about is on a speedway Vincent sidecar my younger brother has built. The clutch is new and I think it is a Barnett. It resembles the clutch off a Japanese superbike, a Suzuki I think. My brother recently rode the bike and the clutch started slipping immediately, so now he's fitted much stronger springs. The problem is that every time he takes the bike out even to practice, the cost is about $300. I don't think a clutch which slips on back off would be good on speedway. There are no brakes on the bikes. I think he will end up in the situation where he has to change the friction materials on the clutch plates. My brother builds a beautiful bike and this one is a restoration, so I don't know how it came to be 1400cc capacity - it's a 1970s bike. He's probably built about 4 Vincent speedway sidecars so far and never had this problem.

Re; "I don't think a clutch which slips on back off would be good on speedway. There are no brakes on the bikes." .[/quote]

Obviously not :!: :shock:
 
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