The X Series is the do it all saddle for riders weighing from 120 to 190 pounds. X1 and X2. What’s the difference? The frame systems. The X1 is our traditional Series 1 Chromoly frame weighing in at 515 grams. The X2 is our new Series 2 aluminum frame with tubular stainless steel rails, which brings the weight down to 420 grams.
