Promax
Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black
MPN: PX-BB13000EX-BK · UPC: 657993125984
$54.99
In Stock — Ships in 4-9 Days
📦 Ships from Warehouse — 4-9 Business Days
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🏪 Free pickup: 26 Essex St (Rear), Andover MA · 978-270-4895
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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
| Bottom Bracket Shell I.D. | 1.37 |
| BB/Frame Interface | English |
| BB Shell Width (mm) | 73 |
| Weight | 102.9 |
| Spindle Interface Type | RaceFace EXI |
| Defined Color | Black |
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$54.99
In Stock — Ships in 4-9 Days