Park Tool DT-2. 2 Rotor Truing Fork We True To This Bicycle disc brake rotors can become warped from extensive use, excessive heat, or impact. Even new disc rotors may not always be perfectly straight, causing annoying pad rub and affecting performance. The Park Tool DT-2. 2 is specially designed and precisely manufactured to gently adjust bent bicycle disc brake rotors. The DT-2. 2 features one long slot and two short slots for maximum compatibility with any rotor design or thickness up to 2. 5 mm. Constructed from high-quality steel with a vinyl-dipped handle for comfort. Features Compatible with rotors up to 2. 5mm thick Gently adjust bent rotors and make them straight again Park Tool part number: DT-2. 2UPC: 763477003065 | Park Tool | Dt-2. 2 Rotor Truing Fork Dt-2. 2