One end of the BBT-9 securely engages the 16 notches of the bottom bracket cups, the other end of the tool engages the 8 internal splines of the crank arm adjustment cap. The BBT-9 also fits the rotor disc lockrings using 16 external notches.
Shimano Saint M820 2013 Crank Arms. The Saint Hollowtech II cranks are forged premium Duraluminum to form a light weight, extremely strong crank set. Gravity riding has progressed with bikes being lighter and trails getting faster. Saint has evolved with this providing a stiff, strong and durable HollowTech II crank set reinforced in all the ways that most extreme chainsets are not. These industry
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