Maps of Scotland Free Printable Maps Evotech Radiator Guard Aprilia Tuono V4 1100 RR (2017 2020). Features of EP Radiator Guard for Aprilia Tuono V4 1100 RR Graded aluminium construction designed to give a secure, precise fit, low weight, and easy install Hexagonal matrix hole pattern ensures strong defence from stone damage Delivers maximum airflow for all important radiator cooling Durable black powder coated finish Styled to accentuate the motorcycle's race replica looks No additional modifications required to the chassis chassis components All required fasteners included Fitting instructions available to download What does an EP Radiator Guard deliver? An EP Radiator Guard protects the Aprilia V4 1100 RR radiator from damage while allowing cooling air to pass through. The radiator's delicate cooling fins easily bend, and misaligned fins can restrict cooling air, which can lead to overheating. The radiator's internal waterways are very susceptible to being holed by stones, etc; all usually picked up and flung directly into the radiator from the bike's front tyre or other traffic. Leaking coolant will make the motorbike inoperable because of overheating, which can result in engine damage.