DescriptionJagwire Pro LR2-E Ebike Disc Brake Rotor with Magnet – 203mm Center Lock Silver/Black. Jagwire LR2-E rotors feature an integrated magnet for use with E-bike speed sensors2-piece design features an aluminum spider and a separate stainless steel brake trackStainless steel machined braking surface resists corrosion and is tuned to reduce braking noiseAluminum spider features an integrated concentric ring and reinforced rivet joints to resist warping and improve durabilityFor rear wheel use on E-bikes with dropout-mounted speed sensorsCompatible with all popular disc brake pad compounds (organic/resin metallic and semi-metallic)NOTE: LR2-E rotors are NOT compatible with brakes with pads that extend below the caliper body. Examples include Avid BB7 Avid Juicy Hayes HFX and Hayes MX1 TECH SPECSHub/Disc CompatibilityCenter-Lock DiscPad CompatibilityAll Pad CompoundsRotor Size (mm)203Rotor TypeTwo Piece