Pay in 4 interest-free payments of $10.50 Learn more
Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Available in various sizes versions and colors
Cryogenically treated 52100 chromium steel races
Disc Center Lock Rim Drilling 24 Rim External Width 37
Bottom bracket not included
Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black Model Name-Pressure-Right Available in various sizes versionsEX 1 External bottom brackets feature cold forged and CNC machined alloy cups dual labyrinth bearing covers and precision sealed bearings. They are the perfect match to Promax CF 2 and HF 2 cranks and ultimate upgrade to the budget BBs sold with most crank sets. Fits all 24 millimeter bottom bracket spindles and frames with 68 or 73 x BC1. 37 bottom bracket shells Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 73
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