Birzman Rotor Wear Indicator BM25-ROTOR-CC

- Quickly checks the degree of rotor wear to determine whether a replacement is needed\n- Double-sided laser engraved minimum thickness (lower wear limit) indications as per suggestion of each rotor manufacturer for reference\n- Thinner design makes it easier to insert rotors\n- Now compatible with TRP e-bike rotors \n- Covers 90% of mainstream rotor specifications