Progressive Suspension Series 412 without Covers Shock absorberRef : PRSU00066A / PS4124051B

Series 412 Shock Absorber without Covers (Manufacturer Part No. 412-4051B) — Progressive Suspension

Specifically designed for Harley models, this Series 412 shock absorber provides a robust and economical upgrade to the rear suspension. Black finish, steel body, and gas-charged damping system for consistent road response. Adjustable spring preload via a cam with 5 positions to tailor performance according to load and riding style.

• Type: Heavy Duty — recommended for frequently loaded motorcycles
• Extended Length: 305 mm (12.00") measured centre to centre of eyelet
• Reservoir: internal
• Material: steel, black finish
• Damping Method: gas-charged
• Style: no covers version — clean look, without ends
• Manufacturing: United States

Before installation, check vehicle compatibility and recent certification documents — some models in the series are road-legal. On Sportster XL ('86-'15), adjustment or spacing of the chain/belt guard may be necessary to ensure clearance. A shock absorber that is slightly longer or shorter than the original may alter the rake angle and handling; also check travel to avoid any contact between the swingarm/exhaust or chain/tyre.

Common applications: Harley V-Rod (VRSCD/VRSCA/VRSCB) 1130 cc and other compatible Harley models.