7" bolt circle (100mm mount hole to mount hole distance)

99-03 FXDX)

Classic shaped design with a short 1-3/4" rise

112 oz (3175 gram) per minute

Washable and ready to give years of trouble-free use

PS, 412 series shock set. 13.5". STD/Heavy Duty. Chrome 1980-0 Evo 7" bolt circle (100mm mount412 series shocks: Best value Progressive Suspension shock, great as stock replacement. Nitrogen charged double steel wall body. Multi staged velocity sensitive valving. Five position cam style preload adjustment. Note: Black 412 shocks may be supplied without lower cover. What are Progressive Suspension's 'Heavy Duty' shocks? If you are a lightweight rider with a lightweight passenger, STD Duty is probably your best choice, heavy duty shocks will