BONMIXC Suspension Seatpost 400lb Support for Larger & Tall Riders, 30.4 400mm, Adjustable Two-Way-Bolt Clamp, Reduce Wind Drag, Anti-Slip Shock Absorber Setback Bike Seat Post

• UPC   764256367637
• [ THIS SIZE IS A COMBINATION ] – This is a 27.2mm seatpost combined with a 30.4mm shim to fit the 30.4mm seatpost tube. It's NOT a single 30.4mm seatpost. [ STURDY CONSTRUCTION ] – The seatpost made of 6061 Aluminum Alloy features with high strength, corrosion and distortion resisting. Offers long durability, stiffness and reliability. [ 2-WAY-BOLT CLAMP ] – Two-way-bolt saddle rail clamp provides an easy to adjust, vise-like grip. It’s better for very fine saddle tilt adjustments. [ EFFECTIVE SHOCK-ABSORPTION ] – 50mm suspension travel offers the post seat great shock-absorbing function. [ POWERFUL POST ] - Solid post with hollow triangle post head not only grants seat post strong support up to 400lb, but also reduces wind drag effectively. [ SPECIALLY WRAPPED SPRING ] – The spring made in Japan performs outstandingly. And the heat shrinkable wrap effectively prevents the spring from deforming. Double guarantee the spring durability. [ COMPATIBILITY ] - Compatible with 99% of saddle rails. Available in various diameters.