| Also known as | 37-3741 |
| Listed in parts books | 1971 |
REAR SPROCKET CONICAL HUB TRI/BSA SINGLE 52 TEETH UK (STEEL) 520
52-tooth steel rear sprocket for 520 chain, fitted to the conical hub rear wheel on Triumph/BSA singles.
This is a rear sprocket for the conical hub rear wheel used on Triumph and BSA singles, 52 teeth, cut for 520 chain, made of steel. The conical hub rear end shows up on the later single-cylinder machines, and this sprocket bolts to that hub to drive the rear wheel off the final drive chain.
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The part number 37-3741 is the same sprocket without the S suffix that sometimes appears on this listing, so if your parts book shows either form you're looking at the same physical piece.
We don't have much more detail on file for this one beyond the tooth count and chain size. If you're not certain your hub is the conical style, check before ordering or give us a call and we'll help confirm fitment.
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