Park Tool Bottom Bracket / Lockring Tool
Best durable shop grade tool for home bicycle mechanics.
A robust, multi-functional tool designed to tackle stubborn bottom brackets and e-bike lockrings. With multiple drive options and a deep-reach design, it provides the leverage and stability required for professional-grade maintenance without the need for impact drivers.
$36.95
at
Sierra Cyclesmith
More Bottom Bracket Tools options
Bottom Bracket Tool (External Bearing)
$19.95
Park Tool BBT-22 Bottom Bracket Tool
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Bottom Bracket Wrench (External Bearing)
$27.95
Park Tool BBT-79.3 Bottom Bracket Tool
$30.95
Park Tool BBT-22 Bottom Bracket Tool
$16.95
Park Tool BBT-16 Crank Cap Tool
$17.95
Park Tool Bottom Bracket Tool BBT-22
$16.95
Bottom Bracket Tool - Shimano Dura-Ace/XTR
$32.95
Park Tool Bottom Bracket / Cassette Lockring Tool
$14.99
Park Tool BBT-4 Bottom Bracket Tool
$15.95
Park Tool BBT-49.2 Bottom Bracket Tool
$19.90
Park Tool BBT-69.4 Bottom Bracket / Lockring Tool
$29.95
Park Tool BBT-RS Bottom Bracket Tool Retaining System
$47.95
Park Tool BBT-32c Bottom Bracket Tool
$16.95
Park Tool Adjusting Cap Tool
$16.95
Park Tool Bottom Bracket Tool
$29.95
Park Tool BBT-47-16 Bottom Bracket Tool
$30.95
Park Tool BB30/PF30 Press Fit Tool
$58.95
Park Tool BBT-49.3 Bottom Bracket Tool
$29.95
Park Tool BBT-27.3 Bottom Bracket Tool
$30.95
Park Tool BBT-69.2 Bottom Bracket Tool
$26.95
Park Tool BBT-18
$27.95
Park Tool BBT-27.2
$34.95
Park Tool BBT-90.3
$62.95
Park Tool BBT-32
$13.49
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 BBT-18C
$27.95
Park Tool Bottom Bracket Tool
$52.95
Park Tool Bottom Bracket / Lockring Tool
$46.95
Park Tool Bottom Bracket Tool
$52.95
Who it's for
- Home mechanics seeking professional-grade tools that last a lifetime
- Bicycle owners prioritizing the protection of their high-end components
- Multi-bike owners needing a single reliable tool for various repairs
Who should skip it
- Cyclists looking for a standalone tool for quick roadside adjustments
- Mechanics dealing with severely corroded or neglected vintage frames
- Riders with modern bikes using oversized threaded or press-fit systems
Performance breakdown
Engagement Versatility
Three distinct drive options ensure compatibility with almost any shop setup.
Fit Precision
Low-profile walls minimize slippage on shallow, seized lockring notches.
Spindle Clearance
Extra-deep body design easily clears wide spindles and recessed components.
Stability Control
Integrated threads allow for secure retention systems during high-torque applications.
E-Bike Compatibility
Covers major motor systems, making it essential for modern e-bike service.
Build Durability
Hardened 4140 steel construction withstands years of heavy shop abuse.
Key Specs
Material
4140 steel
Drive Size
3/8 inch
Wrench Flats
1 inch and 36 mm
Compatibility
Shimano Octalink, ISIS Drive, Bosch Gen 3/4/5, Specialized Levo Brose
Notches
8-notch fitting
Internal Clearance
31.14 mm depth x 22.48 mm diameter
Intended Use
Bottom bracket and lockring service
Know before you buy
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