See 974605 for lowered height

ECE approved

405" on Shovelhead

39-48 Big Twin with early Springer forks with late style Timken conical bearings

PS, 412 series shock set. 12.5". STD Duty. Black 1982-03 Koppling och tillbehör 4speed See 974605 for lowered height412 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