Ritchey Comp Cartridge ZS55/40 Press-Fit Headset Bottom Assembly

Compared to less-expensive Comp headsets, Comp Cartridge headsets have higher-quality sealed bearings.Use: For 1.5" lower head tubes combined with 1.5" , 1 1/8" - 1.5" tapered or 1 1/4" - 1.5" tapered forks. Specifications: Application: Gravel Bottom Cup: