How long is a BMX seat post?
Most freestyle BMX bikes (the majority of what we sell) will have a 25.4mm seat post.
Should I get a setback seatpost?
There is no advantage to a zero setback seatpost for a road bike. Fewer people all the time take any stock in the idea that femur length and the resulting knee over pedal measurements are relevant to producing the proper rider position. It’s better to have the rider properly balanced over the saddle and ignore KOP.
How long of a seatpost do I need?
The CPSC rule in the US is that the seatpost must be inserted two diameters of the seatpost into the frame. If it’s a 27.2 mm seatpost, it must extend 54.4 mm into the frame, which is 2 1/8″.
Are carbon seatposts more comfortable?
As is consistently the case, aluminium is perfectly adequate and will do the job. Carbon seatposts, however, offer greater dampening from road vibrations and are lighter. If you don’t feel your bike needs to be any more comfortable, and you’re not fussed about 100 grams, then aluminium seems like a smart choice.
How do I know the diameter of my seatpost?
In the absence of a vernier caliper or a mike an accurate way might be to measure the circumference with a tape measure and then divide that figure by pi which will give the diameter.
Is it OK to cut a bike seatpost?
Condensed answer: A bicycle seat post can be cut as long as the new size respects the minimum insertion length of the seat post. Ignoring the minimum insertion length and cutting too much of the seat post will result in extra stress on the frame (seat tube) and may cause a crack.
How long should your seatpost be?
a) Seatpost should end at least 25 millimeters below the lower part of the horizontal tube weld to the seat tube. b) Total inserted length should be at least 90 mm from the top end of the seat tube.
Do seatposts need suspension?
Two factors that greatly influence your bike’s comfort by absorbing shock from the road are 1) the tires and 2) the seatpost. But if that’s not enough, you may want to consider adding a suspension seatpost. A suspension seatpost will greatly increase the amount your seatpost can flex.
Do carbon seatposts break?
carbon seatposts not only break from being run very high, but also from being run low, because the flex is in in a smaller area, i had an easton post do this.It wasn’t a catastrophic failure just a crack. I’d leave the carbon posts on the road bike and stick with a 7075 or 7005 mtb post, two bolt.