Model Number FD-M770-10 Series Deore XT Swing Action Top Swing Cassette Compatibility 10-speed Maximum Capacity 18T Top-middle Minimum Capacity 10T Top Gear Teeth 42T Cable Routing Dual Pull Chain Line 50mm Chain Stay Angle 66-69° Multi-Clamp (28.6/31.8/34.9mm) yes Seat Tube Band Mount 28.6/31.8/34.9mm Band Material BB Mounting Plate Plate Material Outer Link Inner Link Link Bushing Chain Guide Average Weight