Speedo/Tach question

[JP Irie]

Hi-
Does anyone know if the speedo/tach unit from a 75 R75/6 will fit a 74 R75/6? Thanks!

John

[bmwmick]

Hi-
Does anyone know if the speedo/tach unit from a 75 R75/6 will fit a 74 R75/6? Thanks!

John

John,
You could go here: www.realoem.com/bmw/ and plug in your VIN to see what part numbers interchange. :clap

[James.A]

The parts WILL fit, there could be an issue with calibration. If the final drive ratio of the donor bike is the same as the recipient bike, it will be no problem at all. Otherwise, the speedo will be off.

[lkchris]

Hi-
Does anyone know if the speedo/tach unit from a 75 R75/6 will fit a 74 R75/6? Thanks!

John

Speedo/tach units are interchangeable '74-'77.

It's quite likely all 75/6 have (originally had) same rear axle ratio. The small number at bottom of speedo face indicates what the speedo is set up for (requires translation) and the gear ratio of the rear drive is stamped thereon, i.e. 33/11 = 3.0 to one, etc.