Product reviews for Park Tool BB Install Spanner amp Tool HollowTech II
Park Tool BB Install Spanner & Tool HollowTech II
Park Tool BB Install Spanner & Tool HollowTech II. Tools. The BBT-9 is used to remove and install Shimano® Hollowtech II bottom brackets. One end of the BBT-9 securely engages the 16 notches of the bottom bracket cups, while the other end engages the 8 internal splines of the crank arm adjustment cap. .... .