I don't think it's possible to buy the Dia Compe brake as a mounting plate only. You'd likely be able to use a rear brake bolt or rear brake with some washers to mount it. Your best bet is to buy the Dia Compe brake and sell the components you don't need and replace the brake with you own. You could even scavenge parts from the Dia Compe brake.
I don't think it's possible to buy the Dia Compe brake as a mounting plate only. You'd likely be able to use a rear brake bolt or rear brake with some washers to mount it. Your best bet is to buy the Dia Compe brake and sell the components you don't need and replace the brake with you own. You could even scavenge parts from the Dia Compe brake.