PRE-LOAD WRENCH
I never had a wrench to adjust the preload on my Griso so I chewed this one out of 1/8" aluminum plate using a coping saw, took me about 20 minutes start to finish.
The curve to fit the Sachs adjustment nut is 38mm Radius (76 Diameter)

Actually the handle is just a bit too long, won't quite swing between the strut and rear tire. No, I don't measure stuff.
WHEEL MOUNTING AID "wheel-liner-upper"
If ever you have struggled getting the rear wheel back onto your bike, hard to line up the holes and get the screws started, This is just a 70 x 12 MS bolt from hardware store with the head cut off.
Needs the screw driver slot to get it back out, don't make it any longer than 70 mm or the tire won't fit in behind the muffler.
I tried it out last night, what a difference, took a fraction of the time it usually takes.
