I started looking at options for single brake kits, but I have no idea how interchangeable brakes are on karts. I also saw one company list two different bore sizes (1 and 1 1/8). So I’m not really sure if I just have to buy new CRG parts or if I can buy an “upgraded” brake system.
You have to consider rotor width and also your caliper and MC mounting points. Sometimes you need to get a bracket that mounts on your bearing cassette or maybe drift a few holes.
I like the MCP systems, they are a good price, don’t change every year and are available everywhere.