Description
Progressive’s 412 Series shocks deliver predictable handling and comfort through proven, durable engineering—no unnecessary complexity. The five-position preload adjuster lets you fine-tune your ride for different loads and road conditions without tools or guesswork. Built for Harley reliability, these shocks offer real suspension improvement at a price that makes sense for any rider.
- Length: 13 inches
- Measurement: Center-of-eyelet to center-of-eyelet
- Preload Adjustment: Five-position cam style
- Material: Durable steel construction
- Color: Black
- TüV Approval: Yes (verify current certificate)
- Installation: Bolt-on, no welding required
- Fitment: Harley-Davidson models (specific application: H-D)
- MPN: 412-4002B
- Note: May require chain/belt guard modification on 1986–2015 XL models for clearance
- Note: Confirm wheel travel clearance before installation to avoid swingarm, exhaust, or tire contact
- Note: Slightly longer length may quicken steering geometry
- Recommendation: Ideal for standard to heavy-duty riding applications






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