Air head | |
Until 1994. Air cooled, 2 valves. Up to 1000cc. | |
/2, /3 Series. | |
/3, /4, /5, /6 Series. | |
/7 Series. Some late models are delivered with the "round" valve covers of the /6 Series. | |
Oil head | |
Air and oil cooled, 4 valves. | |
1993. R1100 / R850 Series (1085cc / 848cc). Spark cover with text "4VALVE". | |
1999. R1150 / R850 Series (1130cc / 848cc). Full length spark cover. | |
2003. R1150 / R850 Series (1130cc / 848cc) Twin spark. Half-long, spoon-shaped spark cover. | |
Chrome head | |
1997-2004. R1200C Series (1170cc) Oilhead. Chrome valve cover. | |
Hex head | |
2004. R1200 Series (1170cc) Oilhead. Hex shape head with four bolts and horizontal snake-head spark cover. | |
Cam head | |
2010. R1200 Series (1170cc, 81 kW, Euro 3) Oilhead. Dual Over Head Camshaft (DOHC). Two bolts and vertical spark cover. | |
2021. R-NineT-MY2021 (1170cc, 80 kW, Euro 5) Oilhead. Dual Over Head Camshaft (DOHC). Horizontal spark cover toward the rear. | |
Waterhead or Wethead or LC | |
Air and liquid cooled (LC). | |
2014. R1200 Series (1170cc). Horizontal spark cover toward the front. The cylinder is rotated 90 degrees with the inlet on top and the exhaust at the bottom. | |
2018. R1250 Series (1254cc). Variable Camshaft control system. Boomerang shape spark cover with text "SHIFT CAM". | |
2023. R1300 Series (1300cc). ShiftCam. Rocket shape spark cover. | |
Big Boxer | |
Air and liquid cooled. | |
2020. R18 Series (1802cc). |