BMW Boxer two-valve fork conversion, shocks, triple clamps and more

"The bike is only for crushing anyway". Of course, we often hear sentences like that. But can a motorcycle have a bad chassis because of that? It's not always about riding fast, it's more about riding safety and riding comfort, and thus ultimately about riding fun. 
So what needs to be done? First and foremost, the technology must be in order. Motorcycle forks and motorcycle shock absorbers should be serviced every three years. The original shock absorbers of the BMW two-valves cannot be opened, consequently no maintenance can be done. If such a BMW R80 or R100 shock is now 30 years old, it is self-explanatory what needs to be done. The forks, on the other hand, can be easily revised, but the springs should be replaced. The spring force of motorcycle forks and shock absorbers wears off over the years.
And what is the difference between a cheaper spring element and a more expensive one? The difference lies in the response behavior. Especially short and fast shocks, such as those that occur during road damage, are transmitted to the rider by motorcycle shock absorbers in the lower price category, whereas high-quality motorcycle shocks absorb them mildly. Consequently, a good suspension can be tuned tighter and still work more comfortably. Ergo, more riding safety and more riding comfort = more riding fun. 

I have a Monolever, Paralever or Twinshock? →Click here

Twinshock Models: 
R45 78-85 -- R60/5 69-79, R60/6 73-76, R60/7 76-78 -- R65 78-85, R65LS 81-85 -- R75/5 69-73, R75/6 73-76, R75/7 76-77 -- R80/7 77-84, R80RT 82-84 -- R90/6 73-76, R90S 73-76 -- R100/7 76-78, R100S 76-80, R100RS 76-84, R100RT 78-84, R100CS 80-84, R100 80-84, R100T 78-80
Fork diameter 36mm Shock length 330mm

Monolever Models:
Street: R65 85-93, R80 84-92, R80RT 84-94, R100RT 87-96, R100RS 86-92
Gabeldurchmesser 38,5mm Federbeinlänge 409mm 
Dirt: R80G/S, R80ST 82-84, R65GS 87-92
Fork diameter 36mm, Shock length GS 365mm, ST 350mm 

Paralever Models:
Street: R80R 92-96, R100R 91-96, R100R Mystik 94-96
Gabeldurchmesser 41mm Federbeinlänge 475mm
Dirt: R80/100GS 87-90, R100GS Paris Dakar 89-90, R80/100GS Paris Dakar 90-96
Fork diameter 40mm, Shock length 495mm