opinions from actual users. I have a 170mm FSA K-Force now (with Rival) that I'm pretty happy with, although front shifting could be a tad better. I'm getting a new SRAM Force group soon and had planned to get a Red crankset because I wanted to try 165mm length. Now that I've decided not to go 165mm I'm wondering if the SRAM Force will be a step up, down or sideways from the K-Force. If it's better I'll give it a shot; if not I'll keep the K-Force and sell it. I'm going to sell it I'd rather sell it as new and not install it at all.