Wheel Spacer 5mm for Bigger Tires - BMW R100GS, R80GS
For longer trips you want to mount bigger tires on the R100 GS, such as MICHELIN DESERT but neither the swingarm or the spring strut give enough clearance for fitting bigger tires.
The best solution would be to adjust the spokes. But this is a complicated and expensive solution. Besides, you don't mount bigger tires except for travelling. The wheel spacer for the back wheel is made from aluminum and comes supplied with longer screws.
Tried and tested on many tours through Africa.