Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black MFPN=ZH0784 See manufacturers specifications for fitment

See manufacturers specifications for fitment questions

8mm Thickness For 2-Piston Calipers Silver

The Terreno bridges the gap between file treads and traditional all-conditions treads

Machined 7075-T6 aluminum provides strength with weight savings

Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black MFPN=ZH0784 See manufacturers specifications for fitmentPromax EX 1 Alloy external Sealed Bottom Bracket 68 73mm Black. EX 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 TECH SPECS Bottom