R&G Race Series Engine Case Covers have been specifically developed in collaboration with selected high level BSB race teams and crash tested in BSB level racing events to ensure they meet and exceed all required standards for case protection. In addition to the existing R&G Engine Case Cover range comes R&G's *NEW* 2015-spec Race Series Engine Case Covers, specially developed at the request of race teams and riders alike. They include a replaceable puck or slider on the impact face, giving the case not only more meat to grind through to further enhance the protection offered by a standard R&G Engine Case Cover but also offering an easy low-cost fix should you only have a "minor" slide, crash or drop. Engineered to allow just the "puck" to be replaced and your cover to be reused again and again! Crafted from 4mm polypropylene for strength, durability (and good looks), they complement our crash protectors perfectly. Easy to install, R&G Case Covers simply bolt on over the original engine casing, so no messing with adhesives, silicone or epoxies. Slimline for maximum ground clearance, ultra lightweight, matt finish and protecting one of the most vulnerable parts of the machine, these could save you £'s in the event of an accident ... Ever seen the prices of a new engine casing or the cost of removing debris from your engine? This specific Race Series Engine Case Cover is compatible with the Aprilia Tuono V4 (1000/1100) models and Aprilia RSV4 models (All years), protecting the Left Hand Side Casing from damage in the event of a crash, slide or drop.