2011 BMW S1000RR 2011 BMW S1000RR 4-stroke in-line four-cylinder-engine. two camshafts. four valves per cylinder 999cc 80 mm x 49. 7 mm 13. 0 : 1 Liquid-Cooled Electronic intake pipe injection/digital engine management w/knock sensor BMS-K-P Electronic Electric Constant mesh 6-speed gearbox Chain 66. 1 ° / 3. 7 in. 56 in. 32 in. Twin disc. floating brake discs. adial-fixed 4-piston calipers. diameter 320 mm Cast aluminum swing arm. Continuously adjustable rear inbound-rebound damping Twin disc. floating brake discs. adial-fixed 4-piston calipers. diameter 320 mm Single disc brake. one-piston floating caliper. diameter 220 mm. 5 mm thickness 120/70ZR-17 190/55ZR-17 4. 5 gal. with 1. 0 gallon in reserve 403 lbs.