The 83's all run Ohilns stock as far as I know and I believe it to be one. I have another Ohlins for my other 83. The 82 had the C&C shocks and I had 2 of those. They were junk, one was broken and rewelded the other I had rebuilt and it just busted out the seals. I had a choice between Ohlins and Fox for the 82 and I chose the fox b/c it has a 0 to 10 adjustable dampening.
The 86, not sure what it has, the suspension has all been done up. It's got 87 CR125 forks. The rear shock might be rieger, but it does have a sticker on it that says "MCR" on it.
Once I get these front forks you know what is next? perhaps rear disc brakes
Then it will be an extremely pimped out 83 Maico
The 86 Maico swingarm will fit the motor width however it's 1/2 inch wider on each side making it not being a direct fit into a 83 frame. The 85 on motor chnged the motor mounts, so it wouldn't be a direct bolt up from 83 to a newer frame even if I got a newer frame. Might be stuck with drum rear brakes, have to see what I can do there.