With protection on shoulders and elbows that are certified according to EN 1621-1

Head: 90 mm

- goat leather

leather stretch at knees

torsion and UV light

PBR Ultra-Light Aluminium Hard Anodized Rear Sprocket 504 - 520 504 42 LD aprilia-tuono-1000-factory-1000-2010-esi5441995 With protection on shoulders andRace experience Thanks to many years of competition experience, PBR developped a wide range of high quality sprockets in collaboration with top teams. High wear resistance Reduces frictions High precision manufacturing Use of top quality gross material Chain pitch: 520. 0 Material: Aluminium Rear teeth: 42. 0 Rear type: 504 Rear version: Ultra light self cleaning hard anodised