The Progressive Suspension 412 Series shocks are simply the best value shock on the market today. The 412’s simple, durable design means they will be an improvement to your motorcycle’s suspension performance for as long as you are riding it. The412 Series steel spring shocks are nitrogen gas-charged with multi-stage automatic valving and an adjustable spring pre-load, proven under extensive testing and easily installed. These shocks fit Harley Panhead and Shovelhead models from 1958-1972.

• Sold in pairs
• Fits Panhead and Shovelheads
• Standard shocks for the average single rider
• All shocks are measured center-of-eyelet to center-of-eyelet.Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues, such as swingarm/axle to exhaust contact as well as chain/belt guard or tire contact.