| Also known as | 10736 |
| Listed in parts books | Not catalogued by year yet |
PRIMARY CHAIN B44/50 JAPAN 72L
A 72-link primary drive chain listed for B44/B50 applications, part number 19-8683J.
This is a primary chain listed for the B44/B50 line, a Japan-made 72-link chain carried under part number 19-8683J, also found in older records under 10736. The primary chain runs between the engine and the clutch/gearbox sprockets inside the primary case, transmitting drive from the crankshaft to the gearbox input.
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The canonical description ties this specifically to B44/B50 applications rather than the Triumph twin family, so despite showing up in a Triumph-tagged listing, treat this as a BSA-line part until you've checked it against your own primary case and sprocket setup.
We don't have much more detail on this one beyond the basic listing. If you're matching up a primary drive on a B44 or B50, give us a call and we'll confirm the link count and fit before you order.
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