The Sync-2E hydraulic disc brake. Designed for E-Bikes the brake features a powerful 2-piston caliper and motor shut-off integration for superior stopping power and safety. This system comes with two rotors and all necessary mounting hardware. Technical specifications Pre-bled and ready to ride Powerful 2 Piston hydraulic brake system Specifically for E-Bikes Smooth powerful modulated braking Self adjusting calliper pistons Lever reach adjustment to suit all hand sizes Motor shut-off sensor Uses environmentally friendly mineral oil Lever reach adjustment Mineral oil fluid to protect the environment International standard and post mount compatible Stainless steel rotors Spare olives to allow for hose reduction Weight: 305g Complies with and exceeds ISO 4210 regulations and EN 15194 regulations. Box Contents X2 Calipers X2 Levers X2 Rotors and bolts X2 Hoses and all fittings