- The Clarks single piece stainless steel rotor is suitable for all types of disc brake bikes, whether you're on trails or riding around town they won't let you down! Made with high-quality steel, these rotors dissipate heat well ensuring braking stays consistent even under the toughest conditions. Also designed to withstand the extra force needed while braking on an E-bike. **Product information** * 6-Bolt * Single piece rotor * Stainless steel