| Diagram | Fig. 15 — SWINGING FORK AND SUSPENSION UNITS · ref 16 |
| Subsystem | suspension rear |
| Listed in parts books | 1969 |
SUSPENSION UNIT (SB4 x 133)
A Girling SB4 x 133 rear suspension unit (shock absorber) from the swinging fork and suspension units section of the 1969 parts catalog.
This is a rear suspension unit, listed in the catalog under the swinging fork and suspension units section. It's the shock absorber that sits between the swinging arm and the rear frame loop, taking up the bumps from the road and controlling how the back end of the bike settles after it does.
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The catalog record identifies it as an SB4 x 133 unit, made by Girling, who supplied dampers and suspension parts across a lot of British bikes of this era. Beyond that spec, our record for this one is thin - it only turns up in a single catalog listing, tied to 1969.
If you're trying to match this to your bike, give us a call and we'll confirm fitment before you order. Suspension units of this type usually come as a pair, so check what's currently on the bike before you commit to one.
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.
Sorry if we got something wrong here. If you think this information isn't correct, .

