






⚙️ Upgrade your ride with precision—because your bike deserves the best!
The Park Tool BBT-79.3 is a CNC-machined aluminum bottom bracket tool designed for professional-grade installation and removal of 12-notch bottom brackets, including SRAM DUB and Rotor BSA30. Featuring a grippy ribbed design and compatibility with 44-47mm diameters, it delivers a secure, slip-free fit trusted by cycling enthusiasts and mechanics alike.











| ASIN | B09VYB1PWQ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #21,118 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #35 in Bike Shop Tools |
| Brand | Park Tool |
| Color | Multicoloured |
| Customer Reviews | 4.7 4.7 out of 5 stars (181) |
| Date First Available | March 16, 2023 |
| Finish | Anodized |
| Folded Size | 1.5" x 1.5" x 3" |
| Included Components | Power tools |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2.19 ounces |
| Item dimensions L x W x H | 2.17 x 2.17 x 1.5 inches |
| Item model number | BBT-793 |
| Manufacturer | PARK TOOL |
| Material | Aluminum |
| Number of Pieces | 1 |
| Part Number | BBT-79.3 |
| Pattern | Solid |
| Power Source | ac |
| Product Dimensions | 2.17 x 2.17 x 1.5 inches |
| Size | One Size |
| Style | Bottom Bracket Tools |
| UPC | 763477001641 |
| Warranty Description | Limited Warranty |
A**R
Quality construction
Perfect tool for the job.
M**Y
perfect park quality but at park prices
Needed yet another bottom bracket tool as this time was putting on threaded bsa sram dub bottom bracket. 12 tooth tool, fit perfect, no slipping when torque wrench set to recommended 50 setting.
G**D
Get This Tool
I don't normally take the time to review a tool, but this bottom bracket tool works so well on a SRAM DUB BSA. No slop, no scratching the cups, it just works and lets me torque the cups down properly without weird angles like the open ended and closed end wrench style tools have.
S**B
Also the correct tool for SRAM DUB BSA 24 notch external spline BB
Fits SRAM DUB BSA 24 (yes twenty four) notch external spline bottom brackets perfectly. Attaches directly to the torque wrench. No issues loosening or tightening BBs, but haven’t used on any that are really stuck on so can’t attest to really cracking on it, but build quality seems good so I wouldn’t hesitate to try.
D**D
Add it to your collection of bike tools
Another quality tool from Park Tool; well-built
D**S
Perfect fit and high quality.
This tool is durable and made of high quality materials. Use is intuitive and the price is great!
W**R
The right tool but fits loose
This tool worked okay to replace my BSA bottom bracket. While this was the correct tool for the job, the fit over the bottom bracket was loose and I had to be very careful not to slip the tool while remove and installing the BB. I don't think this is really the fault of the tool and more of the 12-notch standard and slightly rounded shape of the BB. The tool is pricy compared to other no name brands and I am not convinced it worked any better.
S**C
100% Park Tool Excellence
Great quality tools from Park Tools as always. Yes, there are cheaper options but if you want to get the job done correctly then buy once, cry once. The BB tool fits the SRAM BB perfectly and grips the bb giving you confidence that you won’t damage anything. Solid performance!
R**B
Quality tool but it is expensive. You get what you pay for…unless it’s a montblanc pen refill!
M**D
Great tool from a great company!
S**R
Makes removing DUB BBs a cinch.
B**H
Sauber gearbeitetes Werkzeug mit Gewinde für das Anbringen einer "Abrutschhilfe" - BBT-RS Haltesystem.
S**L
Please Note: - Some of the reviews here quote Sram Dub Torque specs of "50nm" for this tool..(and showing a damaged tool) THIS IS INCORRECT - that torque rate relates to the Crank Bolt and NOT THE Bottom Bracket Cups that this tool is for. The BB Cups have a much lower 35-40nm spec (NOT 50+nm) - This tool is fine so long as you use the right torque specs for your Bottom Bracket - Please review the documentation that relates to your Bottom Bracket model and check your specific torque recommendations.
Trustpilot
3 days ago
3 weeks ago