2017 BMW R nineT Racer

Engine Configuration Opposed (Boxer) Twin, Four-Stroke
Engine Displacement 1170 cc
Engine Cooling Air/ Oil
Compression Ratio 12:1
Combustion Chamber Design Radial
Valves Per Cylinder 4
Intake Valves Per Cylinder 2
Exhaust Valves Per Cylinder 2
Bore x Stroke 101mm x 73mm
Conecting Rod Length
Connecting Rod Material Steel
Claimed Peak Horsepower 110bhp @ 9,500rpm
Claimed Peak Torque 86 lbs.-ft. @ 6,000 rpm
Engine Redline 8,500 rpm
Valve Angle (Included) 5.0 degrees/ 6.0 degrees(11.0 degrees)
Combustion Chamber Volume 53.18cc
Valve Train Type DOHC, Chain Drive, Shim Under Rocker Arm Lash Adjustment
Valve Adjustment Interval 6,000 miles
Intake Valve Diameter 39 mm
Exhaust Valve Diameter 33 mm
Intake Valve Stem Diameter 5.5 mm
Exhaust Valve Stem Diameter 5.5 mm
Intake Valve Maximum Lift 10.8 mm
Exhaust Valve Maximum Lift 10.8 mm
Intake Valve Timing
Open BTDC 3degrees
Close ABDC 29 degrees
Duration 212 degrees
Exhaust Valve Timing
Open BTDC 36 degrees
Close ABDC 8degrees
Duration 104 degrees
Valve Timing Measuring Point 3 mm (lift)
Fuel Delivery System Bing Electronic Fuel Injection
Throttle Body Venturi Size 50mm
Air Filter Type Pleated Paper
Exhaust System Type 2-1 (steel)
Ignition System Digital
Lubrication System Wet Sump
Oil Capacity 4.2 quarts (4.0 liters)
Fuel Capacity 4.5 gallons (17.0 liters)
Transmission Type 6-speed, Constant mesh
Clutch Type Single plate, dry
Clutch Actuation System Hydraulic
Clutch Spring Type Diaphragm
Number Of Clutch Springs 1
Number of Clutch Plates
Drive Plates Only 1 clutch plate
Driven Plates
Primary Drive Gear
Primary Drive Gear Teeth (Ratio) N/A (1.737:1)
Final Drive Sprocket Teeth (Ratio) 32/11 (2.910:1)
Transmission Gear Teeth (Ratios)
6th 28/33 (0.848:1)
5th 31/33 (0.939:1)
4th 33/31 (1.065:1)
3rd 35/27 (1.296:1)
2nd 39/23 (1.696:1)
1st 38/16 (2.375:1)
Transmission Overall Ratios
6th 4.286:1
5th 4.746:1
4th 5.383:1
3rd 6.551:1
2nd 8.573:1
1st 12.0051