Cane Creek Valt Progressive Coil Spring Size:45MM x 450-550B and all of the features

and all of the features you need

CALIPER DESIGN - 4-piston

11 and 12-speed (excluding Shimano 12-speed chains)

and 12 speed quick links chains

INTERNALS: 2 Oversized Outboard Sealed Bearings / 1 Inboard DU Bushing

Cane Creek Valt Progressive Coil Spring Size:45MM x 450-550B and all of the featuresProgressive Rate VALT coil springs are now available from Cane Creek Cycling Components. Designed and tuned by Cane Creeks engineering team to provide riders with a true rise in rate spring curve. The Progressive Rate VALT springs maintain the sensitivity and set it and forget it mentality of a traditional coil set up, but with the progressiveness and ramp up that hard charging riders and many frame designs demand. Progression begins at 50% into the