Nukeproof Steel Rear Spring Nukeproof steel rear shock spring available in both 2.5” & 3” stroke options. These springs have a 38mm internal diameter. With the use of reducers you can also fit these springs to shocks with a 36mm internal diameter by using a spacer Nukeproof steel rear shock spring available in both 2.5” & 3” stroke options. These springs have a 38mm internal diameter. With the use of reducers you can also fit these springs to shocks with a 36mm internal diameter by using the spacers which can be found here: Shock Stroke Rate LBS/INCH Free Length (min) Internal dia. (mm) Approx Weight (g) 2.5" (63) 350lbs 145 38mm 444 2.5" (63) 400lbs 145 38mm 464 2.5" (63) 450lbs 145 38mm 516 2.5" (63) 500lbs 145 38mm 558 2.5" (63) 550lbs 145 38mm 605 2.5" (63) 600lbs 145 38mm 600 Shock Stroke Rate LBS/INCH Free Length (min) Internal dia. (mm) Approx Weight (g) 3" (76mm) 350lbs 160 38mm 505 3" (76mm) 400lbs 160 38mm 565 3" (76mm) 450lbs 160 38mm 605 3" (76mm) 500lbs 160 38mm 650 3" (76mm) 550lbs 160 38mm 698
