Park Tool Bottom Bracket / Cassette Lockring Tool
Best precision tool for home mechanics maintaining modern bicycle drivetrains.
A specialized dual-purpose tool that simplifies drivetrain maintenance for specific high-end components. It offers a precise fit that prevents slippage, ensuring that lockrings and bottom brackets are serviced safely and efficiently without the need for multiple dedicated tools.
$14.99
at
The Gear Attic
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Park Tool BBT-16 Crank Cap Tool
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Park Tool BBT-RS Bottom Bracket Tool Retaining System
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Park Tool BBT-32c Bottom Bracket Tool
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Park Tool Adjusting Cap Tool
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Park Tool BBT-47-16 Bottom Bracket Tool
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Park Tool BB30/PF30 Press Fit Tool
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Park Tool BBT-49.3 Bottom Bracket Tool
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Park Tool BBT-27.3 Bottom Bracket Tool
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Park Tool BBT-18
$27.95
Park Tool BBT-27.2
$34.95
Park Tool BBT-90.3
$62.95
Park Tool BBT-32
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Park Tool BBT-47-12 Bottom Bracket Tool
$30.95
Park Tool BBT-35-12
$28.95
Park Tool BBT-35-36 Bottom Bracket Tool
$29.95
Park Tool Bottom Bracket Tool
$30.00
Park Tool BBT-16 Crank Cap Tool
$20.95
Park Tool BBT-90.3
$62.95
Park Tool BBT-35
$35.21
Park Tool BBT-35-36
$29.95
Park Tool Shell Pilot
$12.49
Park Tool BBT-18C
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Who it's for
- Professional mechanics needing tools that survive daily shop abuse
- Home mechanics wanting to avoid stripping expensive bike components
- Cyclists who prefer using their existing shop-grade ratchet sets
Who should skip it
- Budget-conscious riders looking for basic, occasional-use tools
- Cyclists maintaining bikes with multiple, non-standard component systems
- Inexperienced mechanics prone to over-tightening delicate aluminum parts
Performance breakdown
Build durability
CNC-machined aluminum construction withstands heavy torque without deforming or stripping.
Interface precision
Updated tooth profile ensures a secure, slip-free engagement with bottom brackets.
Ease of use
Thin-wall design eliminates the need to remove cones or locknuts.
Tool versatility
Compatible with standard ratchets, torque wrenches, and bench vises.
Maintenance efficiency
Streamlined design significantly reduces setup time during drivetrain service.
Professional reliability
Consistent performance meets the rigorous standards of professional bike mechanics.
Key Specs
Material
Aluminum and Heat treated alloy tool steel
Tool Type
Bottom Bracket Tool
Drive Size
0.375 inches
Compatibility
16-notch bottom brackets with 52-54 mm major diameter
Number of Functions
2
Number of Pieces
1
Base Size
One-inch base fits wrench or bench vise
Component Compatibility
Bottom Bracket, Cassette
Know before you buy
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