PROGRESSIVE S'USPENSION GAS SHOCKS 412 Series with ECE

with ECE
These gas-charged shock absorbers were designed to fit Big Twin models from 1958 thru 1986. A 13.5" long shock is available to fit all 4 Speed Big Twin from 1958 thru 1972, and the 12" long shock will fit all 4 Speed Big Twin with a rear disc brake from 1973 thru 1986. They feature full-length chrome covers and high-performance gas cells with double-wall construction and 6-stage damping. Other quality features include special cam adjusters which permit easy pre-load adjustment, heat-treated hard chrome rods, long-life seals and fade-resistant oil. All shocks include upper and lower bushings and come complete with a one year limited warranty. Sold in pairs.

Fits for  4-Gang Big Twin 1958-1986 and Dyna Glide 1991-2017