Park Tool BBT-18 Bottom Bracket Tool for 8-Notch ISIS Cups Maps and Charts 2-MOA Green Dot for precise

2-MOA Green Dot for precise aiming

Easy to Carry: Comfortable carry handle

but still gets its job done when it's time to wick moisture

you have the perfect mountain bike to get your little Ripper out on the trail

Park Tool BBT-18 Bottom Bracket Tool for 8-Notch ISIS Cups Maps and Charts 2-MOA Green Dot for preciseThe 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