| Diagram | Fig. 5 — GEAR CLUSTER · ref 20 |
| Listed in parts books | 1969–1971 |
BSA Steel ball, steering head (1/4" diameter; 6·35 mm.)
A 1/4 inch (6.35 mm) steel ball used in steering head and other bearing assemblies.
This is a 1/4 inch steel ball (6.35 mm), the kind used in the steering head bearing assembly. Loose steel balls like this one sit in the races at the top and bottom of the steering head, letting the fork yoke pivot smoothly as the bars are turned.
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The catalog record shows this ball number turning up across several different figure sections, not just steering head, which points to it being a common size shared by a few different assemblies in the parts book rather than a part unique to one location. If you're replacing a set, count out how many the bearing needs before ordering, since balls of this type are typically supplied and fitted in sets rather than as a single piece.
We don't have a specific model or year tied to this part beyond the catalog listings we carry. Call the shop and we'll help confirm what you need before you order.
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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