I built with a More Torch skill error tolerant tube set Columbus Aelle , in 1975, it still works,
a couple Buddies were jumping right in with DB 531, they Burned holes in the steel..
Cautionary Principle .. rather than a trendy .." keirin-style frame for road/commuting use " I recommend building a road frame
with track dropouts
so you have front and rear
Brakes .. There is the classic British Winter Training Bike frame design
It's still a fixed Gear , but there is clearance For mounting and fittings on the dropouts for Mudguards..
save the brakeless stuff for the closed course Velodrome ..
