Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black Brake Lever Actuation-Short Pull 6 Defined Color Black ISO

6 Defined Color Black ISO Width (mm) 44 ISO Diameter 622 / Road / 29" Tire Intended Use Gravel Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 44 Tire Type Tubeless Ready Clincher

}Full Speed Ahead Pro Track 51t x144mm Black Chainring 1/2"x1/8"

Accepts tires up to 28mm wide

Does not require wheel re-dishing

Includes an assortment of spacers to optimize chainline and crank clearance and an Odyssey 6061-T6 aluminum dust spacer

Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black Brake Lever Actuation-Short Pull 6 Defined Color Black ISOPromax 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