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- Features Z-Cylinder locking mechanism
A permanent lubrication is generated by micro pores within the metal alloy
177685-Q0-L
Manufacturer Part Number: PCK400
167827-Q0-L43BOT
Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black Cassette & Freewheel Tools - Features Z-Cylinder locking mechanismEX 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 Product Specifics Bottom Bracket Shell I. D.: 1. 37 BB Frame Interface: English BB
US$ 85.00
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