Unbox interactive guide

How to find the correct saddle height to be most comfortable on your Brompton bike. 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.

How to perform some general and basic Brompton bike checks to show your bike some love and ensure you are safe on the road.

How to correctly fit the saddle height insert, so everytime you unfold your Brompton, your saddle is alwasys at the correct height.

In this video, we will guide you through the process of testing the automated lights on the Brompton Electric bike. Having functional lights on your electric bike is crucial for safety, especially during night rides or in low visibility conditions. The Brompton Electric comes equipped with automated lights that turn on and off based on the bike's motion and lighting levels.

Based on the foundations of the 6-speed system, Brompton’s 12 speed provides a wider gear range for hillier terrain and to support our community of Brompton explorers. 

Over time the Brompton seat post sleeve can wear resulting in your seat post height not being at the optimum height while riding. This video takes you through some basic checks, if you think your seatpost may be slipping. *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.

How to factory reset the Brompton advance 4 speed gearing

How to use the 4 speed Advance gearing

INTERACTIVE GUIDE

As of the end of 2023 a manufacturing change means that bikes with an Advance rear frame are now fitted with 2 washers on the non-driveside rear wheel axle. Previous versions with either 1 or no washers are also functional as long as there is no play in the rear wheel. If you are in doubt contact your local dealer or Brompton Customer Service.

Pre 01/07/23

Post 01/07/23

Please Note: Driveside pedal - 8mm Hex key. Non-Driveside pedal - 6mm Hex key.

Gear ratio chart