BirzmanDisc Brake Rotor Wear Indicator

– Quickly check the degree of rotor wear to determine whether a replacement is needed
– Double-sided, laser-engraved minimum thickness (lower wear limit) markings, based on each rotor manufacturer’s recommendations, for easy reference
– Thinner design makes it easier to insert rotors
– Now compatible with TRP E-Bike rotors
– Covers 90% of mainstream rotor specifications