Of course you can. You can replace Brompton Bicycle Handlebars, but you need to pay attention to the feasibility of replacement as well as installation steps and other considerations.
Before replacing the handlebars, users need to consider the feasibility of replacement:

Brompton supports Brompton Accessories such as S handlebars, M handlebars and P handlebars. P handlebars are a classic among classics and are suitable for riders who want to go from seated to lying down. M handlebars allow the rider to stay in a relatively relaxed position, with less stress on the lower back, which is suitable for short-distance commuting and daily commuting. The M handlebar is relatively upright and the arms remain slightly bent during riding, which may cause a bit of pain in the buttocks for long periods of time, while the S handlebar has a low slung riding position, which is suitable for petite riders or those who are in pursuit of speed. For example, the picture on the right shows the Brompton titanium Bicycle Handlebar modified S handlebar from TITOUR, with a special polished surface that gives a mirror effect. In terms of weight, the M handlebar is heavier than the S handlebar, so users can choose to replace the handlebar according to their own needs. When replacing the handlebar, you need to adjust the length of the brake cable and gear cable to ensure the compatibility of the accessories.
Installation steps:
1, disassemble the original handlebar: rotate the bolt and remove the fixed plate, clean the interface position.
2、Install the new handlebar: align the connector and insert, adjust the position to ensure alignment marks.
3、Fixing bolts: tighten them gradually in order (No.1-2-3-4) to standard torque.
Note that when the handlebar is folded after replacement, make sure that the handlebar does not rub the ground when folded.
Modification cases: Some users feedback that the riding posture is more comfortable after the replacement, but it needs to be operated with professional tools. If you have any questions, please consult the professional technician or shop staff.