The cg r seatpost extends the concept that smoother is faster this revolutionary post features 18mm of vertical compliance zertz vibration damping and fact carbon construction the cg r delivers unsurpassed comfort control and efficiency without adding weight or complication to the frame no matter what surface your ride takes you on the cg r will make it betterrevolutionary design allows 18mm of vertical compliancefact carbon construction blends durability and comfortvibration damping zer