Know your Brompton line

Know Your Brompton Line

Steps to Identify Your Brompton Line

  1. Look for Branding and Labels
    Many Bromptons have decals, engravings, or laser-etched details indicating the line (A, C, P, T, Electric, or G).
  2. Check the Gearing System
    • A Line — 3-speed.
    • C Line — 2, 3, or 6-speed.
    • P Line — lightweight 4-speed with performance gearing.
    • T Line — premium 4-speed, highly customizable.
    • Electric Line — 2-speed or 6-speed with a front hub motor.
    • G Line (latest model) — multi-speed for mixed terrain; designed for comfort and stability with larger wheels.
  3. Examine the Frame Material
    • A Line, C Line — steel.
    • P Line — steel + titanium.
    • T Line — primarily titanium.
    • Electric Line — steel with motor & battery mount.
    • G Line — steel with updated geometry and larger wheels for stability.
  4. Look at Weight, Wheels & Brakes
    • A Line — heavier (budget steel), 16″ wheels, rim brakes.
    • C Line — standard steel, 16″ wheels, rim brakes.
    • P Line — lightweight (sub-10 kg), 16″ wheels, rim brakes.
    • T Line — ultra-light (7–8 kg), 16″ wheels, rim brakes.
    • Electric Line — heaviest (15+ kg due to battery/motor), 16″ wheels, rim brakes.
    • G Line — ~12–13 kg, larger wheels for mixed terrain, powerful disc brakes.
  5. Spot the Accessories and Finish
    • A Line — minimal; no mudguards/rack as standard.
    • C Line — versatile; mudguards/racks available.
    • P Line — performance-focused; travel-friendly.
    • T Line — flagship ultra-light with premium titanium parts.
    • Electric Line — always includes battery and motor.
    • G Line — newest model; tuned for comfort, control, and off-road / gravel paths thanks to its larger wheels and grippy tires.
  6. Electric Assist?
    If your bike has a battery pack and a front hub motor, it’s the Electric Line.
  7. Still Unsure?
    Contact Brompton support with your serial number for confirmation.

Understanding Handlebar Types

  • S Type — Low, sporty handlebar for a more aerodynamic riding position.
  • M Type — Classic mid-height handlebar, the most popular all-round choice.
  • H Type — Higher handlebar, designed for extra comfort and upright posture.
  • P Type — Multi-position touring handlebar, offering flexibility for longer rides (available mainly on older C Line models).

Quick Comparison Table

Feature A Line C Line P Line T Line Electric Line G Line (latest)
Purpose Basic commuting Versatile, all-around use Performance & speed Ultra-lightweight performance Assisted commuting Comfort, stability & off-road capability
Gearing 3-speed 2, 3, or 6-speed 4-speed 4-speed 2 or 6-speed Wide-range, mixed-terrain
Weight ~11.5 kg (25.4 lbs) 11.1–12.1 kg (24.5–26.7 lbs) ~9.65 kg (21.3 lbs) 7.45–7.95 kg (16.4–17.5 lbs) 15.5–16.6 kg (34.2–36.6 lbs) ~12–13 kg (26.5–28.5 lbs)
Wheel Size 16″ 16″ 16″ 16″ 16″ Larger wheels (for stability & rollover)
Brakes Rim (caliper) Rim (caliper) Rim (caliper) Rim (caliper) Rim (caliper) Disc brakes (control on mixed terrain)
Handlebar Types S, M S, M, H, P S, M S, M S, M, H S, M, H
Price Point Most affordable Mid-range, versatile Premium lightweight Highest, flagship line Premium (motor + battery) Above C Line, below P Line