Park Tool - DT-3 Rotor Truing Gauge Stock Item:Park Tool KNOB 1/4 - 20 - BT-5, DT-3 Available in 8 colours or

Available in 8 colours or mix and match to suit your bike

Extra -10 parts for a universal protection system: 1 big part for the down tube

In case the chain falls off the clog when applying force

User adjustable HBC technology with wider range

Park Tool - DT-3 Rotor Truing Gauge Stock Item:Park Tool KNOB 1/4 - 20 - BT-5, DT-3 Available in 8 colours orPARK TOOL DT 3 ROTOR TRUING GAUGE Accurately gauge the straightness of disc brake rotors while the wheel is mounted in a TS 2. 2 or TS 2 Professional Wheel Truing Stand. The DT 3 features an infinitely adjustable, finely threaded indicator gauge. Works with any diameter brake rotor.