BESNIN Suspension seatpost 30.9 * 350mm Hydraulic seatpost bike seat post for MTB Road Bike BMX Seatpost for Shock…

warm tips：
Under normal conditions without a load, the hydraulic seatpost will not generate elasticity.
In the process of riding, or in the case of bumps on the road, our seat tube will generate elastic force to cushion the bumps caused by the ground.
so if you want to test our hydraulic seat tube, please do the test on a bumpy road.

Q: How can I determine if I received the correct size seat tube?
A: The size is engraved on the bottom of the seat tube, you need to look at it under sufficient light.

Q: How do I know what size seat tube I need to buy?
A: Please check our last picture (the seventh), which contains information on how to measure the size of the seat tube.

Q:What you need to pay special attention?
A:the size between 30.9mm and 31.6mm difference is not big, but if it is different from your bicycle size, it still cannot be used normally, so please measure before buying! !

If it is measured that your seat tube is 30.9mm, please do not buy a 27.2mm or 31.6mm seat tube, because it will not be suitable

Q:The ad title says the size is 27.2/30.9/31.6, but the ad text (which changes depending on what picture you click) gives different sizes – which is correct?
A:Tips: Please choose your correct size according to the ad text (which changes depending on what picture you click). The title contains all the sizes we sell, which is not accurate enough. Please refer to the first description for the correct size.

Feature:
weight：27.2*350mm≈460g
30.9*350mm≈520g
31.6*350mm≈500g
Due to manual measurement, there may be an error of 10-20g
♫ The Suspension seatpost have excellent shock absorber and buffering pressure performance
♫ aluminium alloy 6061(tube part)
♫ Anti-corrosion
♫ anti-oxidation
♫ Suitable for most road bike, fixed gear bicycle, mountain bikes,downhill bike, track bike, MTB, BMX, DH, etc

specification：27.2*350mm Suspension Seatpost, Made of high-quality aluminum alloy 6061
Advantage : The new spring Hydraulic Seat Tube adopts internal shock absorption mode to make riding comfortable. The screw inside the seat tube can finely adjust the stroke rebound speed and reduce the vibration effect for bike.
Installation: Installation is easy, just loosen the old seat and remove the seatpost, then bolt the seat to the new seatpost and install it into the bike frame.
Must pay Attention:The seat post outside diameter is 27.2mm ,please measure your bike and choose the right model.Please double check whether it fits your bike size before buying! Our last picture has a measurement method
Tips: Please choose your correct size according to the ad text (which changes depending on what picture you click). The title contains all the sizes we sell, which is not accurate enough. Please refer to the first description for the correct size.