Park Tool BBT-79.3 12-Notch Bottom Bracket Tool Fits SRAM Dub, Cinch, Rotor BSA30, etc.

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Park Tool BBT-79.3 12-Notch Bottom Bracket Tool Fits SRAM Dub, Cinch, Rotor BSA30, etc.

Regular Price: US$75.00

Special Price US$59.99

Availability: In stock

Category: Sports & Outdoors Sports Cycling Bike Tools & Maintenance Shop Tools

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US$114.98

Park Tool BBT-79.3 being used to remove a threaded bottom bracket cup

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Park Tool BBT-79.3 Bottom Bracket Tool

Bicycle bottom brackets occasionally require removal for service, replacement, or upgrading. The Park Tool BBT-79.3 is a precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including SRAM BSA DUB, Race Face Cinch, Rotor BSA30, and others. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-79.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 45-47 mm and a minor diameter (inside of notches) of 44 mm, including:

SRAM BSA DUB
Race Face Cinch
Rotor BSA30
Zipp Vuma
Hawk Racing BB3086
and more

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Park Tool: Your Guide to the World of Bottom Brackets

Confused by what bottom bracket tool you needYou're not alone. Between all the standards, installation methods, and tool fittings, it can all seem a bit overwhelming. Whatever you do need, Park Tool makes over 40 different tools to aid in the removal and installation of bottom brackets. Here's how to determine the correct tool for you, if you have an threaded or thread-together bottom bracket:


Count Splines/Notches Remove the crank and inspect the bottom bracket shell for tool fittings, which can be notches or indentations on the outer perimeter, splines on the inside perimeter, or pin holes on the face. Count the number of tool fittings on the cup.	Measure Diameter Next use a caliper to measure the diameter or width of the tool fittings. For external notches, simply measure the outer diameter of the bottom bracket cup or adapter. Take the measurement in millimeters.	Select Tool The BBT-79.3 is for 12-notch tool fittings with a major diameter of 45–47 mm. Here are some tools we offer for this and a few similar tool fittings:


	Park Tool BBT-79.3	Park Tool BBT-35-12	Park Tool BBT-47-12	Park Tool BBT-69.2	Park Tool BBT-27.3
Tool Fitting	12 Notches	12 Notches	12 Notches	16 Notches	16 Notches
Outer Diameter	45–47 mm	48–50 mm	50–53 mm	44–45 mm	48–50 mm
Typical Brands & Models	SRAM DUB, Race Face Cinch, Rotor BSA30, Zipp Vuma, Hawk Racing BB3086	Praxis M30	Enduro T47 & PF30	Shimano (incl. BB80, BB5700, XT BB70, BB51), Campagnolo, SRAM/Truvativ GXP, Chris King, FSA MegaExo, Hope, Race Face X-type, Surly, Wheels Mfg, Fulcrum, some disc brake lockrings	FSA MegaEvo, Wheels Manufacturing

TRUSTED SINCE 1963

Since our origins in the back of a bike shop in 1963, it has been Park Tool's sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Just like our other 500+ tools, our bottom bracket tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.

Features a ratchet/torque wrench-compatible 3/8" drive. Anodized for easy identification. Manufactured in-house by Park Tool. Compatible models include SRAM BSA DUB, Rotor BSA30, and others. A precision-machined tool for removal and installation of select bicycle bottom brackets with a 12-notch tool fitting.

Included Components: Wrench. Item Weight: 3.2 Ounces. Item Dimensions LxWxH: 2.38 x 2.38 x 1.5 inches. Brand: Park Tool. Material: Aluminum. Date First Available: March 18, 2022. Best Sellers Rank: #36,324 in Sports & Outdoors. Customer Reviews: 4.6 out of 5 stars 22 ratings 4.6 out of 5 stars. : B09VYB1PWQ. Part Number: ?BBT-79.3. Manufacturer: ?Park Tool. Brand Name: ?Park Tool. Package Weight: ?0.09 Kilograms. Item Package Dimensions L x W x H: ?2.4 x 1.81 x 1.46 inches. Number of Pieces: ?12. Included Components: ?Wrench. Item Weight: ?3.2 Ounces. Item Dimensions LxWxH: ?2.38 x 2.38 x 1.5 inches. Brand: ?Park Tool. Material: ?Aluminum.