Chatting with an area mechanic, a shop will often chop the seatpost just before sale, so you should not have to worry about this excessive but when you need to do ought to, Really don't worry since it can be done! Only for reference this was for any size 51cm https://tri-bike-cervelo91111.blogsmine.com/27098154/the-greatest-guide-to-bicycle-store-near-me