6cm) deep tunnel

Replacement parts from the makers of Blue Streak

When installing a 'metal filler'

The 3" core technique is far beyond the louvered metal tubes

PS, 412 series shock set. 13". STD/Duty. Black 1980-08 Koppling/Gasvajrar 6cm) deep tunnelDescription 412 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