Handlebars, seat posts (or seat pillars if you prefer) for the Brompton folding bicycle range

Traditional Brompton folding bikes came in a choice of four handlebar types:

• M type - the original - now known as mid
• H type - the same as the original, but with a longer stem for a higher ride position - now known as high
• S type - sports / straight - now known as low
• P type - multi position for touring - this has now been discontinued though is often confused with the P Line

With the T Line (and P Line electric) came a new handlebar - slightly thicker in diameter and available in two types:

• Low rise
• Mid rise

Brompton seat posts come in three different sizes, and can be sized based on the riders inside leg measurement

• Standard - for riders with an inside leg measurement of up to 33 inches
• Extended length - for riders with an inside leg measurement of up to 35 inches
• Telescopic - for taller riders

There is also a carbon version of the standard and extended length seatpost