| Diagram | Fig. 2 — CYLINDER AND CRANKSHAFT · ref 28 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1970 |
BSA Flywheel complete (right-hand)
A complete right-hand flywheel from the crankshaft assembly, cataloged for 1969-1970.
This is a complete right-hand flywheel, part of the crankshaft assembly that sits inside the engine's bottom half. The parts book places it under CYLINDER AND CRANKSHAFT, so it's a mating half of the crank assembly that carries the connecting rod and gets bolted or pressed together with its opposite-side counterpart.
Read more
Our catalog record ties this to entries spanning 1969 to 1970, but that's as far as the documentation goes on this one. It doesn't spell out which specific model or engine family it belongs to, so before you order, check it against what's actually in your crankcase.
A flywheel like this isn't something you swap on a whim — it's a balanced component, machined to work with its mate and the rest of the crank assembly. If you're rebuilding a bottom end and this one's cracked, worn, or out of true, give us a call and we can talk through what you've got before you commit to a part number.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
Sorry if we got something wrong here. If you think this information isn't correct, .

