Bicycle Post Aluminum Adjustable Rigid Seatpost Bracket Bar Repair 27,2 x 350 mm Description: High performance aluminum alloy seat post, high strength, strong, durable, durable and lightweight. Two types of seatposts in 3 different sizes, double rail mount and grille. Calibration on the surface helps raise the height of the saddle to ensure riding comfort. The pole mounted on double rails allows you to adjust the angle of the seat post. Universal replacement seat post for most road bikes, sharp wheel, mountain bikes, downhill bikes, track bikes and more. Specification: Material: Aluminum Alloy Color: Size Chart: Size: 25,4 x 350 mm/1 x 13,78 inches 27,2 x 350 mm/1,07 x 13,78 inches 28,6 x 350 mm/1,13 x 13,78 inches Wall thickness: 2.8mm/0.11 inch The package includes: 1 piece bicycle seat post