I don't know what the difference is between regular ICS and Red Neck ICS is. But, HIC is pretty nice. You need: threadless fork, oversized 1 3/8" bars, threadless headset, starnut, and HIC shim. You have the starnut in the forktube about 1/2" down, you put your headset on and put the fork though the headtube. Then, take the HIC shim that you get from RAD or make your own, and slide it over your fork tube. Then stick on the top cap for HIC over the forktube. I suggest using the one you get with your headset. Put the compression bolt in, tighten, and put bars on and clamp it together. Then Enjoy.