BMW K75. Worth it? | Page 6 | GTAMotorcycle.com

BMW K75. Worth it?

Wingboy said:
The final drives BMW used back then were very simple and sturdy units. Take it apart and see if you can fix it yourself. YouTube is your friend for tutorials.
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Simple, yes. Sturdy... why so many overhaul videos?

Shaft splines and bearings are simple but expensive. Shafts are not easy to repair, you have to cut off the receiver, weld on a new one then have the shaft balanced. $500 for a new one.

Bearings and pinion are another few hundred, or a replacement for $1000.

That’s if the problem is in the lucky end. If the clutch spline end is torn up, double to triple the overhaul cost.

K bikes have poorly designed final drives at best. The final drive and driveshaft should be removed, cleaned, inspected and repackaged at every tire change. Used parts might be a cheap fix, but likely a short term one.
 
Mad Mike said:
Simple, yes. Sturdy... why so many overhaul videos?

Shaft splines and bearings are simple but expensive. Shafts are not easy to repair, you have to cut off the receiver, weld on a new one then have the shaft balanced. $500 for a new one.

Bearings and pinion are another few hundred, or a replacement for $1000.

That’s if the problem is in the lucky end. If the clutch spline end is torn up, double to triple the overhaul cost.

K bikes have poorly designed final drives at best. The final drive and driveshaft should be removed, cleaned, inspected and repackaged at every tire change. Used parts might be a cheap fix, but likely a short term one.
Click to expand...
All true. Most owners neglect the splines. I had 140k on my airhead when i sold it. Lubed the splines every year.
 
Wingboy said:
All true. Most owners neglect the splines. I had 140k on my airhead when i sold it. Lubed the splines every year.
Click to expand...
I didn't know this was a thing until I had to replace the rear end of my Wing.
 
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