Originally Posted by Ovityons

I purchased my 1983 Trek 720 new and after many thousands of miles I still love the bike, 10 or 11 years ago I re-build the drive train with 700mm black maverick rims on Black Shimano Deore XT hubs with black spokes (bike originally had 27”rims), Shimano Ultrgra Front derailleure, Shimano Deore rear derailleure, Shimano Ultegra Crank with 52, 42, 30 sprockets, SRAM 11-34 9 speed cassette, new Shimano bar end shifters and cables. I put on the same shimano pedals that I have on my 2004 Trek 8000 mountain bike. I can use the same shoes for either bike. I still have the original DiaCompe GC960 Cantilever brakes and now I would like to upgrade the brakes. I am looking for advice on what would be the best brakes for my bikes, I did some searching to see what was available and found some that I think might work but don’t know for sure. I am considering the Tektro CR70 brakes for the rear but the Tektro brakes will not work on the front, I found the Shimano CX70 that look like they might work on the front if I use the smallest spacer. I was also wondering if I will need to replace the levers, if so what levers would work ?
This is a picture of the existing front brake.

Kevin