Promax EX-1 External Sealed Bearings BSA 68/73mm Bottom Bracket 24mm Cranks

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PROMAX EX-1 EXTERNAL SEALED BEARINGS BSA 68/73MM BOTTOM BRACKET 24MM CRANKS
Reference Number: 8N83C6
The Promax EX-1 External Sealed Bearings Bottom Bracket is designed for 24mm cranksets and fits frames with 68mm or 73mm English-threaded bottom bracket shells. It features cold-forged and CNC-machined alloy cups, dual-labyrinth bearing covers, and precision sealed bearings for durability and smooth performance. This bottom bracket is compatible with Promax CF-2 and HF-2 cranks and serves as an upgrade to standard budget models. The unit weighs 102.9 grams and comes in black.
External bottom bracket designed for frames with 68 or 73mm English-threaded bottom bracket shells.
Features cold-forged and CNC-machined alloy cups for durability and precise fit.
Includes dual-labyrinth bearing covers to protect precision sealed bearings from contaminants.
Compatible with all 24mm bottom bracket spindles, including Promax CF-2 and HF-2 cranks.
Offers a sealed bearing design for smoother performance and longer lifespan compared to budget bottom brackets.
ITEM SPECIFICATIONS
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 Hollowtech II
SPINDLE INTERFACE TYPE FSA MegaExo
SPINDLE INTERFACE TYPE FSA MegaExo Light
SPINDLE INTERFACE TYPE RaceFace EXI
DEFINED COLOR Black
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CR3550 .
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365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States
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Item specifics