The Brompton Saddle Height Insert
How to correctly fit the saddle height insert, so everytime you unfold your Brompton, your saddle is alwasys at the correct height.
Need further assistance, or want to view all the official Brompton 'how to' videos? - www.brompton.com/support/home
*The seatpost O-Rings are added to certain bicycle models as additional protection, but please be assured they are not required for the safety or quality of your Brompton. From Factory All Standard length seatposts come with 2 o-rings, Extended seatposts 1 o-ring and Telescopic - No o-rings.