curious 1974 bmw r90/6

[chasbmw]

Lots of things can have been changed on a bike since 1974. Check the engine no on realoem, this will give you a build date. Bmw's model year starts in September after the summer holiday shutdown, so a build date of sept 74 will be a '75 model.

Bikes built either side of a model change can be a mix and match of parts as the previous model parts were used up.

[richard t]

its a april 1974 with drilled disk, black turn signals, /5 controls. i have yet to find the vin on the engine

on parts places it says that forks are different after 09-1974 os if i have a 04-1974 do i have /5 forks

I'n surprised it has black turn signals, most 1974's had the metal ones

[chasbmw]

You won't have /5 forks as they didn't fit disc brakes to /5s, you will probably have the early /6 forks with a 14mm front axle rather than the 17mm one fitted in ?

I'm not sure what further chanes BMW made to the forks at that time, but over the /6 model range ther were various changes to the internal damping of these forks.

Charles

[Jean]

I'd check the FRAME number AND the Engine number...they might not be the same.
Black plastic turn signal housings on a '74 is suspicious to me too. But, the /6's are notorious for lots of changes over the time they were run. AND something ugly might have happened to the original ones, too.