If it's fine with 20 spokes and you can initiate a skid with your legs only, then it should be okay handling the brake force of a disk brake.
The problem I think will be finding a rear hub that has 20 holes.
@frankenbike started
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If it's fine with 20 spokes and you can initiate a skid with your legs only, then it should be okay handling the brake force of a disk brake.
The problem I think will be finding a rear hub that has 20 holes.