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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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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 BC1.37” 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
4.7 ★★★★★
Based on 1536 reviews
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Product Reviews
★★★★★ 5
Love it!
Color: White, Size: 2 Rolls
A very nice bracelet holder. It's much better than I anticipated. It holds everything perfectly. There is enough room on the bottom to store a lot of different things. The bracelet hold there feels sturdy, and I love the color. I like how I can look at the bracelet through the window.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
See what you’re looking for at a glance
Color: Black, Size: 2 Rolls, Color: Black, Size: 2 Rolls
Impressed. This is a nice case. You can slip the bracelets on without any fuss. While I haven’t finished filling this one, I’m already considering a second case for watches and ankle bracelets. It’s convenient to see your items rather than digging for them. Nothing gets tangled either. There’s room for storing additional items below the two display rods.
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Reviewed in the United States on December 31, 2025
★★★★★ 5
Perfect little jewelry box
Color: Beige, Size: 2-Layer
My daughter loves this jewelry case. Her necklaces store nicely as it has a little pocket to secure the length of different pieces. She likes the modern color and style of the little hardware. Great quality for the price!
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Pretty and delicate piece of jewelry
Color: Blue, Size: 2-Layer
Very nice lots if storage for jewelry nice jewelry box, nice price
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Perfect
Color: Beige, Size: 2-Layer, Color: Beige, Size: 2-Layer
It is very aesthetic and it was perfect for all my jewelry. A nice touch to my desk too.
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Reviewed in the United States on May 25, 2026