Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours ยท Estimated delivery Jul 9 - Jul 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm BlackEX 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
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 BC1.37โ bottom bracket shells
Product Specifics
- Bottom Bracket Shell I.D.: 1.37
- BB/Frame Interface: English
- BB Shell Width (mm): 68
- BB Shell Width (mm): 73
- Weight: 102.9
- Spindle Interface Type: Shimano Hollowtech II
- Spindle Interface Type: FSA MegaExo
- Spindle Interface Type: FSA MegaExo Light
- Spindle Interface Type: RaceFace EXI
- Defined Color: Black
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 657993125984
EAN: Not available
Manufacturer Part Number: PX-BB13000EX-BK
CR3550
191724-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Based on 56 reviews
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Product Reviews
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5
Happy Customer
Size: Medium, Color: (001) Black / Black / White
Item was as describe, comfortable and stays in place thick but breathable ! I will order from this company again
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Reviewed in the United States on January 15, 2026
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5
Love these socks
Size: Large, Color: (035) Steel / White / Black
Great quality socks
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Reviewed in the United States on April 26, 2026
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4
Good quality
Size: Large, Color: (035) Steel / White / Black
These are a bit thicker then a compression sock and they come up higher on the ankle than a no-show sock normally does. They are very comfortable and soft.
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Reviewed in the United States on February 10, 2026
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5
Good quality socks
Size: X-Large, Color: (001) Black / Black / White
Great value and great product and comfort. Not thin and wears well not like thin socks in a size that fits
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Reviewed in the United States on December 4, 2025
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5
Socks
Size: Medium, Color: (001) Black / Black / White
Great price, perfect fit.
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Reviewed in the United States on January 23, 2026