CYSKY Bike Seat Post 25.4/27.2/28.6/30.4/31.6mm x 350mm Alumium Adjustable Seatpost for Most Bicycle Mountain Bike Road Bike MTB MTN BMX

• Size: 31.6 × 350mm (apx 305g/pc), Tube Length: 325mm, Head Length: 25mm, Total length: 350mm
• Strength: 4.9 levels ultra high strength, maxium of 580lbs, Adjust tube length of 0 to 320mm
• Material: Constructed of ultra light and strong 6061 T6 aluminum alloy. Light weight, never rust.With adjustable head, Easy to install
• Compatible: Suitable for most road bike, fixed gear bicycle, mountain bikes, downhill bike, track bike, MTB, BMX, etc
• Note: Please check the diameter of the original seatpost before purchasing, measure the inner diameter of the frame tube, and select the same size as the original diameter.

Specification: Tube Outter diameter:25.4mm,27.2mm,31.6mm Length:350mm Strength: 4.9 levels ultra high strength, maxium of 580lbs Adjust tube length: 0-320mm Use: MTB, BMX, mountain bike, track bike, fixed gear, road bike and so on Package Include:1 x Bicycle Seat Post How to choose the seatpost size: 1.Check the diameter of the original seatpost,choose the same size as the original diameter. 2.Measure the inside diameter of the frame tube.choose the same size as the inside diameter of the frame tube.