Nukeproof Steel Spring 2.5 - 3Nukeproof 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: 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.Spring Specs: 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 Features: Genuine Nukeproof part Buy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

Nukeproof Rear shock Spring ReducerThis rear shock spring reducer will allow you to reduce the inner diameter of your Nukeproof rear shock spring from 38mm to 36mm. This is required when replacing a spring which has a 36mm inner diameter as standard (DVO, Fox, Cane Creek, BOS, Ohlins, Marzocchi, Manitou & X-Fusion). Features: Includes: 1 pair of reducers Size: 38mm to 36mm Part Number: NP19SHKRED Genuine Nukeproof partBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.