| Diagram | Fig. 13 — SWINGING FORK AND SUSPENSION UNITS · ref 20 |
| Subsystem | suspension rear |
| Listed in parts books | 1970 |
Spring, 145 lbs. chrome heavy duty
A 145 lb chrome-finish rear shock spring for the swinging fork suspension units.
This is a rear shock spring, rated at 145 lbs, with a chrome finish. It's the coil spring that goes over the suspension unit body on the rear shocks, taking the load and controlling how the rear end sits and reacts to bumps. The catalog places it under the swinging fork and suspension units section, so it's part of the rear suspension assembly rather than the front forks.
Read more
The 145 lb rating is a spring rate, meaning it's built stiffer or softer than other options depending on load and riding style — riders sometimes swap spring rates to suit a sidecar, a heavier rider, or just a different feel out back. The chrome finish is cosmetic as well as protective, since these springs are exposed and visible on most stock shock setups.
Our catalog record only shows this one appearance, tied to 1970, so we don't have a wider spread of fitment data on file. If you're matching this to a specific shock body or trying to pair it with the right damper unit, give us a call and we'll confirm before you order.
Sorry if we got something wrong here. If you think this information isn't correct, .