Originally Posted by
ardnet
I have full set Tiagra 4700/4703 rim/v brake 3x10 groupset.
I’m planning to build gravel/cyclocross bike out of it.
However, I’m planning to use disc brakes on the bike.
Tiagra brake levers are not designed to work with V brakes
What gravel bike frame will you be using? Most current gravel bike frames need flat mount brake callipers, so you will have to look for mechanical brake callipers made for that type of mount.