The Benno Half Rail Plus attaches to the rear carrier of the Benno Boost electric bikes to protect smaller passengers on the rear of the bike. Benno Boost Quality Accessories Easy to install, this Benno Half Rail Plus offers protection and something to hold on to for passengers in the rear cargo area of the Benno Boost electric bikes, or to provide a more secure hold for carrying cargo. The Benno Rail Clamp Set is needed for installation. Compatible with Benno Boost Evo 4, and Boost Evo 5. Unsure of which Evo Benno Boost you have, click here to bring you to the Benno Boost Evo finder. Color: Black Dimensions: 50cm x 72cm x 20cm (W x L x H) When carrying passengers, the rear wheel must be covered! Install Benno Wheel Guards or Utility Pannier Bags. Failure to do so could result in serious injury! Make sure that no parts of the body or clothing come near moving parts on the bicycle, such as chain, spokes, tires or brakes. Benno Rails may help stabilize load during normal operation but do not protect in the event of an accident or bike falling over.