Originally Posted by Rucksta
Can you share your swing arm shortening experience?
I don't mind to share that. But it might belong in a Hack thread.
I shortened the swingarm for a R100 engine in a R69S frame.
The original 69S drive shaft is expensive and scarce. And I don't want to ruin original classic parts.(frame was already ruined by the previous owner) The mono swing costs 50€ with the shaft in it.
Thats why I shortened a mono swingarm so the shaft sticks out enough to reach the gearbox.