Spring Perch | JRI Progressive Type increased packer space and only

increased packer space and only requires one retainer

Stroke : 42mm/1

Browse more 6in | 65mm ID Metric Coilover Springs to find the right suspension setup for your build

Part Number: 120-300-450

Max Stroke : 68mm | 2

Spring Perch | JRI Progressive Type increased packer space and onlyEngineered specifically for the Swift Bump Springs series. Made to fit shock shaft for optimal performance. The flat wire bump spring perch replaces the standard cap as the spring sits internal to the cap while providing extended stroke, increased packer space and only requires one retainer. Fits our entire flat wire bump springs series! Perch are currently made for Penske, Ohlins, Fox and JRI shocks while more will be available for other applications