| Diagram | Fig. 5 — GEAR CLUSTER · ref 91 |
| Listed in parts books | 1969–1970 |
BSA Spacer (·098—·099"; 2·4892—2·5146 mm.)
A selective-fit gearbox spacer, .098–.099 in. thick, used in the gear cluster assembly to set correct clearance.
This is a gearbox spacer that shows up in the gear cluster figure of the parts books, appearing in catalog listings from 1969 to 1970. It's a thin shim-type piece used to set clearances between components on the gearbox mainshaft or layshaft assembly, keeping the gear cluster running true and preventing unwanted end float.
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The catalog gives a specific thickness range for this spacer, .098–.099 inch (2.4892–2.5146 mm), which tells you it's a selective-fit item rather than a one-size piece — gearboxes often use a small range of spacer thicknesses to dial in the right clearance for a given set of components.
Our record doesn't tie this one to a specific model beyond the gear cluster figure it appears in, so if you're ordering, have your gearbox apart and measure your stack before you commit — spacers like this are picked to match what's actually in the case, not just what year the bike is.
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.
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