Bottom Bracket Tools
For installing and removing Shimano and ISIS Drive splined 20T BB cups
Combination tool that fits 16 notch external bearing crankset bottom brackets cups and lockrings, and also 8 internal spline crank adjustment caps.
Specially designed bottom bracket tool for shop and consumer use.
Park Tool BBT-49 16 Notch 39mm Bottom Bracket Tool 3/8" Drive, Black