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Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
Reinforced base material
Like all things great
4140 heat treated crmo axle
With a new revised and grind friendly tread pattern
Promax EX-1 Alloy External sealed Bottom Bracket Dog Leash Reinforced base materialThe PROMAX EX 1 External bottom bracket 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 BB's sold with most crank sets. Fits all 24 millimeter bottom bracket spindles and frames with 68 or 73 x BC1. 37in bottom bracket shells.
US$ 169.99
US$ 250.00
US$ 135.50
US$ 10.95
