#31541, "RE: Disc Conversion with 90 GSX calipers / 1g vs 2g GSX" In response to In response to 1
You can use the early GSx caliper as long as you purchase the stainless lines from RRE.
The 1G dual piston uses a screw in brake line fitting and the 2g uses a banjo fitting.
Both are just as easy to "bolt Up" one just needs brake lines and one doesnt. If you dont have stainless brake lines now and want a set, either is a perfect option for you.
If you already have a braided brake lines then the 2g GSX caliperis your best choice.