* CAD-designed & CNC machined using state-of-the-art technology * Optimised for maximum strength & lowest weight * Aviation-grade 7075-T6 aluminium alloy, the best material available * Self-cleaning grooves between each tooth to prevent mud build-up * Color anodized coated surface for extra durability Article: SCAR Aluminium Ultra-Light Self-Cleaning Rear Sprocket SRS130- 520, Size 10 mm