BBB DiscDoctor Tool PNS and if your saddle is

and if your saddle is out of position

Compatible with Shimano 12-speed HG road drivetrains

which delivers a speed boost through rider positioning as well as its shape

Crankshaft diameter: 28

BBB DiscDoctor Tool PNS and if your saddle isA compact, must have for cyclists, offering 6 essential disc brake functions. Easily align calipers with the removable shim, true rotors with the fork, gauge rotor wear, and maintain brakes using the piston spreader. Includes a pad wear monitor and valve maintenance toolperfect for your cycling kit. Features Compact disc brake multitool with 6 functionsRemovable shim for easy caliper alignmentRotor truing fork and wear gauge compatible with all common