HI,

I have a King of Mercia touring bike from about 1987 with drop bars and cantilevers. The brakes have never been very satisfactory because of the low-profile cantis which were all that I could get at the time. Also the frame was advertised as suitable for 27" or 700c wheels, but since changing some time ago to 700c the brake pads have to be at the very bottom of the slot and even then barely fit.Anyway, I got the idea from elsewhere on the forum that I could fit v-brakes with special levers (I'm happy enough with downtube friction shifters). I duly bought a set of Avid Single Digit 5s and some Tektro RL520 levers. However there is not enough room to fit the brake pads as the brake mounting bosses on the front fork are only 62.5mm apart. The rimes are Super Champions which need replacing, so I can get something a little narrower, but even with that and swapping the spacers on the brake blocks around I am still not sure they are going to fit.All thoughts and suggestions gratefully received.

Please help.

I didn't find the right solution from the Internet.

References:
https://forum.cyclinguk.org/viewtopic.php?t=52762
Product demo video company

Thanks!