Brompton C Line 4-speed mid - Amethyst Lacquer with Rack and Dynamo

1. Frame

All steel:

• Steel Main frame and stem
• Steel forks
• Steel advance rear triangle introduced in 2025

Folded size: 585mm wide x 565mm tall by 270mm deep

2. Colour

• Main frame: amethyst lacquer 
• Handlebar stem: amethyst lacquer 
• Forks: amethyst lacquer 
• Rear Triangle: amethyst lacquer 
• Touchpoints: Black
• Decal: White 
• Detailing: Black

3. Handlebars

Mid rise / classic Brompton style bars (previously known as the M type)

4. Gears / drivechain

4 speed advance Brompton derailleur system 
Derailleur chain tensioner
50T front chainring 
106 link Brompton advance chain with connecting link
Folding left hand pedal - black
Non-removable right hand pedal - black
4 rear rear sprockets 
Integrated 4-speed gear shifter on left side of bars - black - for derailleur

5. Front luggage system

The C line comes with the front carrier block fitted so you can easily add Brompton luggage to make transporting your stuff easier without affecting the ride 

6. Mudguards / Rack

This bike comes with black advance mudguards and roller frame 

7. Roller wheels

New advance roller wheels help keep the bike stable when folded 

8. Wheels / Tyres

Classic 16 inch (ETRTO 349) Brompton size wheels with double wall rim 

Black Hub / rim (the braking surface is still silver) with silver spokes

• 28 spokes  on the rear
• 28 spokes on the front
• Bolt through hubs

SP SV8 front dynamo wheel

Schwalbe Marathon 16 x 1.35 inch tyres with reflective sidewall to help make you more visible to cars when riding in the dark
Low rolling resistance and good puncture protection
16 inch (ETRTO size 349) wheels with double wall rim and 28 spokes
Schrader / car type 8mm valve 

9. Saddle

Brompton standard saddle with mounting point underneath - this allows (if you wish) you to add the Brompton CatEye saddle mount rear light

No pump is supplied - but you could add a Brompton Lezyne pump which attaches to the rear of the bike frame so you don't forget to carry it with you

The Brompton saddle is attached to the seat post using an adjustable Brompton Pentaclip - black

10. Seatpost / Seat height

Standard seatpost for riders with an inside leg measurement of up to 33 inches - colour: black

Note: If you are a taller rider - up to 35 inch inside leg - then an extended length seatpost can be fitted at no extra cost at time of ordering - just let us know

For very tall riders a telescopic seatpost is available at extra cost 

Saddle height insert is included - we recommend you fit that after riding the bike for a while

11. Suspension

Along with the new advance rear triangle comes a new advance suspension block

12. Lighting / reflectors / accessories

Front and rear dynamo lights and a front hub dynamo wheel are included

It's easy to retrofit battery lighting (at an extra cost) such as

• Brompton Spanning solo rear light
• Brompton CatEye 500lm front light
• Brompton Be Seen light set