When I was 20 and suffering from a Yamaha SR500-eperience (i.e. very mixed machining, spare parts - if existent at all - ridicolous expensive etc.) I wanted to get a real bike - a BMW! After months of searching I finally got a R90/6 and never sold it since. Currently she is awaiting her second major overhaul. I´m buzy with my RE, though, so she will have to wait a bit.
If you look at the available bikes in 1969, the time when the direct ancestor R75/5 was introduced, this bike must have been outstanding: no British vibrator, no Japanese toy-bike, no Italian breakdowner - a German Autobahn-bike! Capable of running 170 km/h all day long and being quite comfortable along the way it must have felt like riding a bullet
.
The advancing 70ies, however, highlighted the weak spots of a construction that featured medieval and futuristic details directly nearby: ignition and elctric system surprisingly weak, the new disc front brakes basically a gross faulty design, roadholding severly compromized by the cardanic shaft that produces irritating torque.
In contradiction to Ace´s unkind words (
) I experienced that machining genarally is very good, even today all parts are available wihout an problem at decent prices.
To ride that bike today, Br. Schraub, you have to take care of the electric system - including ignition - and the brakes, in case your BMW shows a modern (
) disc design. It´s not too complicated though to mount a full-hydraulic double-disc-design in the front as parts are interchangeble up to the 80ies! But I guess the bike in question is a 75/5, so it has the drum design, which is quite sufficient.
It´s not possible to improve the roadholding, though. In Germany these BMWs have the nickname "Gummikuh" - rubber cow. If you open up the throttle, you are moving upwards first before you accellerate - cardanic torque! You have to get used to that, as it means you should never (really never!) close the throttle beeing inclined - the bike´s rear will collapse like a house of cards, creating and unwelcomed curve and reducing the possible incline angle - no good, that! Gummikuh-riders prefer to open up throttle while beeing inclined as that has a stabilizing effect and keeps your curve round instead of hexagonal.
A BMW is so much different from a Bullet! The Indian longrunner is fleet-footed and tame, creating even in average riders like me a feeling of confidence in your skills.
Unlike the boxer! The turbine-like engine in combination with the tenacious handling presents a challenge for even experienced riders, as it´s always clear that this can be a very fast bike - if you know how (and avoid making mistakes!).
Both bikes though share a common attribute: a very unique character. That´s why both a great fun, most of the time