Allstar Performance Bump Spring Cup 1.200" Step OD x 16mm Shaft Helper Spring averaging a 17 CFM increase

averaging a 17 CFM increase from

Just as importantly

and arm width (to fit different body shapes and sizes and works for different race seat configurations

Triple Pass

Made in Italy

Allstar Performance Bump Spring Cup 1.200" Step OD x 16mm Shaft Helper Spring averaging a 17 CFM increaseLightweight bump spring cups are made from 6061 T6 aluminum and have a black anodized finish. Cups feature a bronze bushing, allowing the shock shaft to move freely during suspension travel. Cups have a 2" O. D. sized for Hypercoil and most Landrum bump springs. Two are required and should closely match bump spring I. D. size to appropriate bump spring cup step O. D. size from chart. Sold each. Specialty items for the Shop, Trailer and Track. The