Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black MFPN=ICNHG60111116QS }Cane Creek ZN40-Bearing 52mm Zinc

}Cane Creek ZN40-Bearing 52mm Zinc Plated Each

better routing options for crowded or tight cockpits

Removable valve core allows for fast cleaning and uninterrupted air flow Length (mm) 34 Material Alloy Valve Core Removable Valve Presta Defined Color Red

Double: 412x40

Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black MFPN=ICNHG60111116QS }Cane Creek ZN40-Bearing 52mm ZincEX 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