Details
| Also known as | B249, E8184 |
| Diagram | Fig. 2 — CRANKCASE · ref 90 |
| Subsystem | engine bottom |
| Listed in parts books | 1970–1971 |
CHAIN TENSIONER B44 B50
Chain tensioner for BSA B44 and B50 singles, part number 70-8184 (also listed as B249).
PN · 70-8184
This is a chain tensioner listed for the BSA B44 and B50 models. The description points to a primary chain tensioner setup, which is the piece that keeps slack out of the chain running between the engine and gearbox on these singles.
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The catalog record we have on 70-8184 is brief, and it's also listed under the older number B249. If you're working from an older parts book and see B249, that's the same physical part.
We don't have more detail on this one beyond what's in our records, so give the shop a call and we'll confirm fitment before you order.
$41.95
Pin your bike to check this part fits.
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