| Also known as | 95-90921 |
| Listed in parts books | Not catalogued by year yet |
C/S SPROCKET,21T BSA TAIW
A 21-tooth gearbox sprocket for BSA, listed under 68-3089T (also 95-90921).
This is a 21-tooth gearbox sprocket listed in our records under 68-3089T, with 95-90921 as an alternate number for the same part. The description ties it to BSA fitment, so this is a BSA gearbox sprocket rather than a Triumph one, even though it shows up filed under a Triumph-style part number in our system.
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A gearbox (countershaft) sprocket like this sits on the output shaft of the transmission and carries the final drive chain back to the rear wheel sprocket. Tooth count matters here — 21 teeth is what's stated for this one, and swapping tooth count changes your overall gearing, so it's worth checking what you're currently running before ordering a replacement.
Our catalog entry on this one is brief and doesn't give us model or year specifics beyond the BSA reference, so call the shop and we'll confirm fitment against your machine before you order.
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