You could add extra holes to the clamping ring for more finegrained positioning. Like this you would reduce the step to 11 degrees without having to flip the ring.
Plus, if you position the holes cleverly, you could still keep the inverted ring trick for reducing the step by another half, i.e. to 2.25 degrees.
Nice mounts, BTW! Could you please tell me the dimensions for the smaller one?
Edit: I just realized that it’s probably not possible to add so many holes since the clamping ring must have some grub screws going in sideways, which would be in the way. 12 holes would clearly leave no space for that. Maybe 6 would be fine.
@IDEA Is it just me or does a pulley fit right though the center of the hole?!
I only ask because I broke the tip of my 1.5mm wrench in the set screw of the pulley and it’s stuck. If I don’t have to drill it out I’d just keep using it as is
But I can make motor plates with a larger bore, can you measure the diameter of the motor pulley? I want to check the larger hole will not interfere with the recesses for the motor mounting bolts.
Yes, that is enough, I have this type of motor pulleys , I can check it myself, but I did not know if you are still interested in this type of motor mounts.
I am, I just haven’t ridden much due to work and child summer care. Today was her first day of school so probably going to ride more =)
Since I can’t take off the pulley with the broken wrench tip stuck in it, I need a mount where I can work around it. Eventually I might drill it out if the motor fails.