Park Tool BBT-18 Bottom Bracket Tool for 8-Notch ISIS Cups Winter Hats Group Size: N/A

Group Size: N/A

2 is designed for warmer-weather use

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It has adjustable sizing

Park Tool BBT-18 Bottom Bracket Tool for 8-Notch ISIS Cups Winter Hats Group Size: N/AThe BBT 18 is a heavy duty investment cast tool for removing and installing components with an eight notch tool fitting, including select cartridge bottom brackets, as well as chainring lockrings on some e bike drivetrains. BBT 18 FEATURES Installs and removes the following components with eight notch tool fittings: Shimano Octalink drive side bottom bracket cups with external notches ISIS Drive bottom bracket cups including Truvativ and Bontrager