Progressive 412 shocks deliver durable suspension performance with a simple, proven design for Harley-Davidson motorcycles. Double-wall steel damper bodies house multi-stage velocity-sensitive valving and nitrogen charging for smooth, consistent damping across all riding conditions. Five-position preload adjustment lets you tune the ride for your weight and riding style.
Features
- Double-wall steel damper construction
- High-pressure nitrogen gas charging
- Multi-stage velocity-sensitive damping
- 5-position cam-style preload adjuster
- Progressive or Heavy-Duty spring rates available
- Chrome or black finish options
- Optional Show Chrome covers on select models
Specifications
-
Brand: Progressive
-
Manufacturer Part #: 412-4021C
-
Category: Suspension / Shocks and Struts
-
Weight: 9.95 lb
-
California Prop 65 Warning: Yes — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Fitment
Fits Harley-Davidson motorcycles. Check your specific model year and application before ordering to ensure correct spring rate and mount geometry.
Frequently Asked Questions
Can I adjust the ride height or stiffness?
Yes — the 5-position cam-style preload adjuster lets you dial in stiffness. Spring rate selection (Standard or Heavy-Duty) is made at purchase.
What's the difference between Standard and Heavy-Duty springs?
Standard springs suit lighter riders; Heavy-Duty springs are engineered for heavier loads or two-up riding to prevent sagging.
Do these shocks come with Show Chrome covers?
Show Chrome covers are optional on select applications. Check fitment details for your model — some come standard, others sold separately.
How long do these shocks typically last?
Progressive 412s are built for durability with nitrogen charging and steel construction. Lifespan depends on riding conditions and maintenance, but they're designed to perform for the life of your bike.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov