`- Designed for Rock Shox Vivid and Kage rear/frame shocks (running change from black to grey color on select sizes/rates) \n- Designations indicate aluminum (A) or steel (S) notched spring retainer/collar use depending on weight application, although steel collars can always be used regardless of spring rate \n- For Drop Stop bottom-out bumpers and spring collars, see rear shock service parts
- stroke:
- 89mm/3.5|400