You have to pick out your components well to get the weight down without sacrificing ride quality. The SID ultimate drops nearly 400grams from the Pike. I will probably put the Pike on it when spring comes to see how that will feel and that will add almost a lb. I rode this bike with the SID all last year and it realy did feel great at 120mm. I live in the midwest and I dont have any real hills so I use a Shimano XTR 11 spd with a SRAM XX1 cassette. The really only fancy/exotic thing I have on the bike would be the Carbon TI hubs but even then my wheelset is still just over 1500 grams for the 35mm ID so not super light.Wow don't typically see bikes weighing that low these days. Feel like 30+ is the norm now.