Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Blue. 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
| Defined Color | Blue |
| Spindle Interface Type | Shimano Hollowtech II |
| BB Shell Width (mm) | 68 |
| BB Shell Width (mm) | 73 |
| Weight | 102.9 |
| Spindle Interface Type | FSA MegaExo |
| Bore | 24mm |
| BB Style | Euro |
| Spindle Interface Type | FSA MegaExo Light |
| BB/Frame Interface | English |
| Bottom Bracket Shell I.D. | 1.37 |
| Spindle Interface Type | RaceFace EXI |
SHIPPING
- Most items from our online catalog ship free on orders $25+
- Heavier/Larger items that are excluded from our free shipping have a flat rate shipping
- Expedited shipping is availble. If available in your area, this will be an option at checkout
- Complete bicycles ship with a flat rate of $75. E-bikes may incur more costs due to weight/size/battery configurations
- See the delivery FAQs for details on shipping methods, costs and delivery times
- Local pickup is available on all items at our retail stores. Please note will-call orders are available within 1-2 business day from purchase. You will receive an email stating your order has been fulfilled once it is ready.
RETURNS AND EXCHANGES
- Used items, demo bikes, and closeout items are excluded from this policy
- You may return your purchase within 45 days of purchase
- Complete bikes (including youth bikes) are not eligible for return
- All returns must be unopened in new condition upon return. We do not accept returns on open items as we cannot resell them
- Buyer pays return shipping, unless a mistake was made on the order (i.e. wrong item shipped)
- Free Exchanges towards any item in our store
