BMW Full Custom Build - R90/6 Airhead Rebuilt from the Crankshaft UP!

Grab a snack 'cause this is a long one! This 1975 BMW R90/6 was an ideal candidate for a complete custom transformation. It was a solid runner and in good shape overall, though it was far from a perfect specimen. With over 53,000 miles, the engine was in sore need of a rebuild and had received some suspect work in the past. Additionally, the paint job looked good from afar but was far from good, with plenty of chips, small dents and some wobbly pinstripes. Some overspray had made its way onto the engine and frame as well. This video shows the enormous effort that went into turning this staid old-man BMW into a hopped-up custom done in the popular euro-bobber style. If you'd like to see more about the work that went into this bike, there's twenty additional videos breaking down each phase of the build, where I explain the what and why of each modification and restoration process. R90 Playlist:    • BMW R90/6 Custom build   Custom touches: ⦁ Complete crankshaft up engine rebuild featuring a Seibenrock 1000cc power kit ⦁ Rebuilt heads with dual-plug conversion and larger exhaust valves ⦁ Brand new clutch kit ⦁ Lossa Engineering stainless steel cone mufflers ⦁ Refreshed front forks, cut down 100mm with new progressive-wound springs ⦁ New 420mm rear shocks hung from custom fabricated shock mounts ⦁ Refreshed final drive and new driveshaft U-joint ⦁ Custom fabricated subframe and solo seat ⦁ Single-wire dual LED taillights ⦁ Cognito Moto LED headlight modified to accept OEM BMW key switch ⦁ Motogadget Bar-end turn signals and Mirror ⦁ Motogadget M-unit Blue control unit ⦁ Motogadget Chronoclassic Tachometer/Speedometer combo on custom mount ⦁ TheMotoworks 3-button handlebar switches (designed and manufactured by me!) https://shop.themotoworks.com/collect... ⦁ Renthal 1 1/8" Fatbar handlebars with custom CNC machined clamps ⦁ Brembo brake master cylinder and clutch lever with custom stainless brake lines ⦁ Domino single-pull cable and custom 1-into-2 throttle splitter ⦁ Dyna 3 electronic ignition and Dyna dual-output ignition coils with custom plug wires ⦁ Complete scratch-built wiring harness ⦁ Cognito Moto tachometer drive block-off plug ⦁ Heidenau K60 Scout tires ⦁ A fine, fresh coating of black paint, powdercoat and grey cerakote ⦁ Much, much more! I'm on Instagram @roodlum   / roodlum