| Also known as | S755 |
| Diagram | Fig. 15 — SWINGING ARM - CENTRE STAND - REAR BRAKE CONTROL · ref 33 |
| Subsystem | suspension rear |
| Listed in parts books | 1971, 1973 |
Nut – swinging arm spindle (13/16" UN.F)
13/16 inch UNF nut that secures the swinging arm pivot spindle at the rear suspension.
This is the nut that secures the swinging arm spindle at the back of the frame, where the rear suspension pivots. It's a 13/16 inch UNF nut, threaded to match the spindle it clamps against, and it's the fastener that keeps the whole rear end from working loose off the pivot shaft.
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It shows up in the swinging arm and rear suspension unit figures, alongside the centre stand and rear brake control parts, which tells you it lives right at the pivot point where the swinging arm meets the frame. The catalog lists it under the older S755 form as well as the current 21-0755 number, so if you're working from an early parts book, that's the same part.
This one takes real clamping load holding the pivot together, so it's not a bad idea to replace it if it's been off and on a few times or shows any thread wear. Check it against your spindle before ordering to be sure the thread matches.
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