Unior Open BB Wrench
Best durable tool for home mechanics seeking professional precision.
A versatile, open-ended solution for servicing a wide array of external bottom brackets and center lock disc nuts. It simplifies drivetrain maintenance by providing a secure, reliable fit for common spindle standards, making it an indispensable tool for both routine adjustments and component upgrades in any home workshop.
$12.99
In stock
at
The Gear Attic
Owner Satisfaction
4.6
/
5
Category Rank
1474
/
4267
#1474 in Bicycle Tools
Price vs Category Average
-77%
Below average
Weight
217.72
/
grams
Who it's for
- Home mechanics looking for professional-grade tools that last a lifetime
- Cyclists who prioritize hand comfort and grip stability during maintenance
- Precise DIYers wanting to avoid damaging expensive external bottom brackets
Who should skip it
- Mechanics dealing with severely corroded or stuck vintage components
- Beginners who prefer the security of fully enclosed socket tools
- Owners of modern bikes with proprietary or undersized bottom bracket interfaces
Performance breakdown
Compatibility breadth
Handles almost every major external bottom bracket standard with ease.
Leverage and torque
Long handle provides ample force for stubborn, seized bottom brackets.
Build durability
Heavy-duty steel construction withstands daily abuse in professional workshops.
Ergonomic handling
Simple, functional grip design feels secure even with greasy hands.
Engagement precision
Snug fit minimizes the risk of slipping and damaging delicate notches.
Versatility
Doubles as a useful tool for external center lock disc nuts.
Key Specs
Weight
217.72 grams
Bottom Bracket Type
41mm/16 notch
Tool Type
Bottom Bracket Wrench
Compatibility
Shimano Hollowtech II, Campagnolo Ultra-Torque/Power Torque, Race Face, FSA, SRAM, Truvativ, Chris King, External center lock disc nuts
Know before you buy
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Ask Metto anything about the Unior Open BB Wrench before you decide.
