BMW V8 Powered Motorcycle by Harald Geiling
BMW V8 Powered Motorcycle by Harald Geiling
01 May Custom

Harald Geiling runs the Roadrunner Bikeshop over in Mainz, Germany, selling motorcycles and also doing a lot of frame repair. Somehow or another, the idea of building a V8 motorcycle entered Harald’s mind and being more of a doer than a dreamer, that’s what he did.


He bought a 4 liter V8 from a BMW 740i, and squeezing time in over a period of four years, he made the motorcycle pictured here. The engine is stock and produces 286 hp and 300 foot pounds of torque. The exhaust is an 8 into 1 running through a Kawasaki muffler. The radiator comes from a Volvo 340. He built a two speed gearbox which powers the belt drive. Wheels and suspension are modified pieces from various Kawasaki's.



  • Engine: water-cooled eight-cylinder four-stroke, 90-degree V-engine, two overhead camshafts, four valves per
  • Cylinder, injection, controlled cat, mechanically operated single-disc dry clutch, two-speed gearbox, timing belt.
  • Bore x Stroke 89 x 80 mm
  • Engine capacity 3982 cm3
  • Compression 10: 1
  • Rated power 210 kW (286 hp) at 5800 rpm
  • Max. Torque 400 Nm at 4500 rpm
  • Chassis: load-bearing motor-gear unit with auxiliary-frame, Upside-down fork, Ø 43 mm, dual swing arm, two spring legs, double front disc brake, Ø 320 mm, six-piston calipers, rear disc brake, Ø 220 mm, two-piston caliper.
  • Cast aluminium wheels 4.50 x 18; 9.00 x 18
  • Tires: 160/60 ZR 18; 240/40 ZR 18
  • Dimensions and Weights wheelbase 2250 mm, weight 490 kg (1100 pounds).


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