I wouldn't go totally brakeless with a magic gear set-up on vert dropouts,
cos the chain gets looser over time, and dangles a bit, but that's the deal with magic gear. No adjustment.
extending/shortening the chain = 1"
using a half link = 1/2"
every tooth on cog or chainring = 1/8"
i used a magic gear for ages with brakes, no problem.
I wouldn't go totally brakeless with a magic gear set-up on vert dropouts,
cos the chain gets looser over time, and dangles a bit, but that's the deal with magic gear. No adjustment.
extending/shortening the chain = 1"
using a half link = 1/2"
every tooth on cog or chainring = 1/8"
i used a magic gear for ages with brakes, no problem.