Specifically for turbo trainers. The compound has a much lower internal resistance thus making it particularly suitable for roller training. This tyre should not be used on the road. **Features:** * TURBO SPECIFIC * COMPOUND / TPI: Roller / 67 TPI * WEIGHT: 310g (23c) / 525g (35c) / 470g (26" x 1.35") Please note that Schwalbe items marked as Special Order will be a delivery time of 7 days.