Park Tool BBT-18 Chainring Lockring and Bottom Bracket Tool

Park Tool BBT-18 Chainring Lockring and Bottom Bracket Tool

Park Tool BBT-18 Chainring Lockring and Bottom Bracket Tool

The BBT-18 is a heavy duty, investment cast tool for installing and removing the following eight-notch bottom bracket cups: Constructed from investment-cast steel and featuring 36mm wrench flats. The BBT-18 has 8 notches with a nominal outside diameter of 43.4mm. The hole in the center of the casting is 22.5mm, and will not fit over 30mm spindles. Manufactured by Park Tool, the most trusted name in bicycle tools and repair equipment for over 50 years. As with every other component found on a bicycle, Park Tool offers a full line of tools for bicycle lockring chainrings, including many of the most popular modular crank and e-bike chainring standards: 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. As with our other 500+ tools, our lockring tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.

Key Features

• ✅ The BBT-18 has 8 notches with an outside diameter of nominally 43.4mm.
• ✅ The inside-to-inside width is approximately 38mm
• ✅ Each notch is approximately 3.9mm wide.
• ✅ The hole in the center of the casting is 22.5mm, and will not fit over the 30mm spindles.

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