https://www.ebay.com/sch/i.html?_nkw=promax+ex+1+alloy+external+sealed+bottom+bracket+68+73mm+black&_sacat=0&_dmd=1&rt=nc at eBay

Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black

Regular price
Sold out
Sale price
$73.00

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 Item SpecificationsWeight102.9BB/Frame InterfaceEnglishSpindle Interface TypeFSA MegaExoSpindle Interface TypeFSA MegaExo LightSpind