| Listed in parts books | Not catalogued by year yet |
CLUTCH CHAINWHEEL ALLOY
Alloy clutch chainwheel, part number 57-4640A, carrying the primary drive sprocket and clutch assembly.
This is the alloy clutch chainwheel, part number 57-4640A. It carries the engine sprocket teeth for the primary chain and mounts the clutch assembly on the gearbox mainshaft, so it does double duty as the drive link between the engine and the clutch basket.
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Our records on this one are thin — it doesn't show up across a spread of parts book listings the way some numbers do, so we can't point to specific model years or figure references to back up fitment claims beyond the description itself. If you're matching this against what's on your bike now, bring the old part or the number off it and we'll confirm before you order.
Give us a call if you want to talk through fitment on your particular gearbox and clutch setup before committing.
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