Brompton P Line 12-speed Specifications

The Brompton P Line 12-Speed is a lightweight, performance-focused folding bike that blends titanium and steel construction with a wide gear range—ideal for fast urban riding and longer Canadian commutes.

Brompton P Line 12-Speed Folding Bike Specifications

Key Specifications

• Weight: From 10.5 kg / 23.15 lbs

• Gearing: 12-speed

• Drivetrain Range: 402%

• Frame Material: Titanium and Steel

Folded Dimensions

• Folded Size: 25.3" H × 23" W × 10.6" D
  (Identical compact fold to other Brompton models, perfect for transit, apartments, and offices)

Frame & Fork

• Main Frame: Precision-drawn, heat-treated steel tubing with hand brazing

• Rear Frame: Superlight Advance rear frame made from titanium with a replaceable hanger

• Fork: Titanium fork with a threaded headset

Cockpit & Contact Points

• Grips: Superlight lock-on grips with precision-ground foam bonded to an ultra-thin engineered core

• Seatpost: Standard black seatpost (33")

• Saddle: Superlight saddle

• Seat Clamp: Machined aluminum seat clamp and rear frame clip, anodised matt black

• Hinge Clamps: Machined aluminum hinge clamp levers and plates, anodised matt black

Drivetrain & Gearing

• Drivetrain: Brompton 12-speed system

• Number of Gears: 12-speed

• Shifters: Brompton 4-speed derailleur shifter + 3-speed internal hub shifter

• Derailleur: Patent-pending direct-mount 12-speed derailleur

• Sprockets: 11-13-15-18T

• Chainset: 6061 forged aluminum crank with 50T chainring and integrated chainguard

• Bottom Bracket: Square taper

Wheels & Tires

• Front Wheel: Superlight front wheel with double-wall rim, double-butted spokes, and aluminum hub body

• Rear Wheel: Double-wall rim with double-butted spokes and aluminum hub body

• Tires: Continental Contact Urban

  • Fast-rolling, city-optimized performance tires

• Tubes: Presta valve

Braking & Safety

• Brakes: Brompton dual-pivot caliper brakes

• Lighting: Reflectors included

• Mudguards: Included (standard)

Carrying & Accessories

• Front Carrier: Front carrier block adaptor compatible with all Brompton luggage

• Pedals: Fixed right-hand pedal and quick-release left-hand pedal

• Roller Frame: Not included

• On-Bike Accessories: Not included

Disclaimer

• Specifications: Subject to change without notice