Planet Bike Proteg Rear Wheel bike computer bracket (130cm wire & hardware) Contains bracket with 130cm wire, wheel magnet (fits up to 4mm bladed spokes) and zip ties Bracket fits most bars (25.4 to 31.8mm) Compatible with: Proteg 5.0, 8.0 and 9.0 Ideal for rear wheel indoor bicycle trainers Fits most bars (25.4 to 31.8mm) 130 cm wire Includes wheel magnet (fits up to 4 mm bladed spokes) and zip ties Compatible with Protg 5.0, 8.0 and 9.0