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I’ve been looking into the idea of welding/brazing disc brake mounts to an old GT bravado steel frame.
Most conversions seem to add ISO-tabs, but since flat mount calipers are both more available and also sleeker I’d wanna go with that if possible. Is the chainstay strong enough to handle it without a brace? 140 or 160mm discs.
Since a flat mount conversion would put the caliper between chain and seatstay, a brace right next to it would maybe help a little, but the braking force would ofc be centered right at the mounting spot.
I’ve seen it done, but maybe it’s a bad idea?
Not my frame in picture, but one just like it
