The short version

  • Best for urban commuters who want e-Motiq assistance and easy folded rolling with a more energetic posture than the high-bar C Line
  • Rear Wheel/Motor: Brompton rear motor (24 Nm of torque and 250 W motor power) in rear wheel.
  • 345 Wh Greenway battery, removable, up to approx. 90 km range (depending on conditions).
  • Main trade-off: Narrower gearing than the 12-speed C Line
01

Where the Electric C Line 4 Speed - Mid Handlebar with Roller Rack - E-Motiq fits

The clearest match is urban commuters who want e-Motiq assistance and easy folded rolling with a more energetic posture than the high-bar C Line. This review is based on the Evans specification, manufacturer information and clearly identified independent coverage; it is not presented as a RideIn hands-on test.

AI-generated editorial illustration for the Brompton Electric C Line 4 Speed - Mid Handlebar with Roller Rack - E-Motiq electric-bike review
AI-generated editorial illustration of the bicycle type and use case; not a photograph of the exact reviewed model.
02

Motor, controls and UK legality

Evans lists Rear Wheel/Motor: Brompton rear motor (24 Nm of torque and 250 W motor power) in rear wheel.. The accessible listing does not identify the controls precisely.

The custom 250W rear hub supplies a quoted 24Nm and responds through a torque sensor. Assistance should therefore build with pedal input, which is useful in dense traffic where predictable starts matter more than outright motor force.

The handlebar display brings power modes, start assistance and range estimates into easy reach. Compared with the previous front-motor Brompton, the rear-drive layout should give a more familiar pushed-from-behind sensation, although independent testing of this exact build is still emerging.

For use as an electrically assisted pedal cycle in Great Britain, the maximum continuous rated motor power must not exceed 250W, assistance must cut out by 15.5mph and the pedals must be able to propel the bike. Check the label and delivered configuration rather than relying on a category name.

Brompton Electric C Line 4 Speed - Mid Handlebar with Roller Rack - E-Motiq specification checked for this review
Evans price when checked£2,779–£2,879
MotorRear Wheel/Motor: Brompton rear motor (24 Nm of torque and 250 W motor power) in rear wheel.
Battery345 Wh Greenway battery, removable, up to approx. 90 km range (depending on conditions).
Range informationThe result is a natural ride feel with an effortless boost when you need it most — up to 90 km of range from the 345 Wh battery.
ControllerNot stated precisely in the accessible Evans listing
FrameHand-built with Brompton’s iconic all-steel frame, the C Line folds down in seconds to a compact package that’s easy to roll, store, or take anywhere thanks to the SuperRoll+ system.
TransmissionBrompton 4-speed derailleur shifter; Brompton chain-pusher derailleur; 11-18 Tooth.
BrakesBrompton dual-pivot caliper brakes.
Tyres16″ Schwalbe Marathon Racer.
Fork and suspensionRigid fork: Steel.
Complete-bike weightFrom 17.9 kg.
Listed sizesOne Size
Listed coloursMatt Black, Dune Sand, Cloud Metallic, Palm Green
03

Battery, charging and realistic range

The listed battery is 345 Wh Greenway battery, removable, up to approx. 90 km range (depending on conditions).. The result is a natural ride feel with an effortless boost when you need it most — up to 90 km of range from the 345 Wh battery.

Brompton’s removable 345Wh pack is claimed to support up to about 90km and can be charged away from the folded bike. That capacity is generous for such a compact folder, but maximum range assumes favourable use rather than a winter commute in the strongest mode.

Adaptive estimation should become more useful as the system learns the rider’s pattern. Even so, it remains sensible to record real consumption on the intended route before relying on the display for a tightly timed return journey.

Use only the approved compatible charger, charge away from escape routes and stop using a battery that is damaged, swollen, leaking or unusually hot. Ask for the replacement-pack price and warranty conditions before the original battery becomes a problem.

04

Frame, fit and ride character

The frame specification is Hand-built with Brompton’s iconic all-steel frame, the C Line folds down in seconds to a compact package that’s easy to roll, store, or take anywhere thanks to the SuperRoll+ system.. Fork and suspension details are Rigid fork: Steel.. The tyres are 16″ Schwalbe Marathon Racer..

The mid bar shifts some weight forward and feels more purposeful than the high-bar alternative. It suits riders who like responsive steering, but anyone with limited wrist, neck or back tolerance should compare both positions in person.

The 16-inch wheels give the bike its rapid turn-in and compact fold, while Marathon Racer tyres balance speed with everyday puncture protection. Four ratios spanning 163% keep operation simple but leave less cadence choice than the 12-speed C Line on long or steep rides.

AI-generated illustration of the Brompton Electric C Line 4 Speed - Mid Handlebar with Roller Rack - E-Motiq bicycle type in use
AI-generated editorial illustration of the bicycle type and use case; not a photograph of the exact reviewed model.
05

Brakes, transmission and everyday equipment

The bike uses Brompton dual-pivot caliper brakes.. Transmission is Brompton 4-speed derailleur shifter; Brompton chain-pusher derailleur; 11-18 Tooth.. The equipment information is Included; Standard.

SuperRoll+ is a material advantage in stations and corridors because it lets the folded bike travel on four wheels. The rack, mudguards and luggage adaptor also make the bike more useful day to day without improvised accessories.

At a quoted 17.9kg, this remains a roll-first rather than carry-first electric folder. Caliper brakes should be checked regularly in wet commuting use, and owners who frequently descend in rain may prefer the disc-equipped G Line despite its larger fold.

06

What the published evidence tells us

Evans listed this build at £2,779–£2,879 when RideIn checked it on 29 August 2026. Prices can differ by colour or size, and stock can change; a discount against a reference price does not by itself establish value.

The exact configuration is documented by Evans and Brompton’s current C Line with SuperRoll+ page. The 90km figure is a manufacturer claim, not a guaranteed result for every rider or route.

Independent C Line reviews reinforce the platform’s compactness and lively city character, but most published tests cover the earlier front-drive system. Their comments on folding, small-wheel handling and carrying remain relevant; their motor impressions should not be transferred to e-Motiq without qualification.

AI-generated illustration of equipment relevant to the Brompton Electric C Line 4 Speed - Mid Handlebar with Roller Rack - E-Motiq review
AI-generated editorial illustration of the bicycle type and use case; not a photograph of the exact reviewed model.
07

Advantages and disadvantages

The useful comparison is whether the complete build suits the regular route, storage and service plan. A premium motor cannot compensate for poor fit, while a modest component can be entirely sensible on the right type of bike.

  • Advantage: Compact fold with excellent folded rolling
  • Advantage: Responsive torque-sensed rear motor
  • Advantage: Useful removable 345Wh battery
  • Advantage: Direct mid-bar riding position
  • Disadvantage: Narrower gearing than the 12-speed C Line
  • Disadvantage: Substantial weight for repeated lifting
  • Disadvantage: Rim brakes rather than hydraulic discs
  • Disadvantage: Limited exact-build independent testing
08

Buying checks and RideIn verdict

Confirm the exact product code, frame size, colour, battery capacity, assistance configuration and included equipment before paying. Ask which Evans branch or authorised dealer will handle electrical diagnosis, warranty labour and replacement components, then test the brakes, controls and fit before committing to regular use.

For a rider who values responsive city handling, the mid-bar e-Motiq C Line is the sharper choice than its high-bar sibling. It keeps the best parts of the Brompton transport concept, but buyers should accept the four-speed limits and plan to roll rather than carry it.

Evidence and useful links

Sources used for this review

The Evans listing establishes the sale build and price snapshot. Manufacturer material provides system and support context; independent coverage is identified separately and is not treated as a substitute for testing the selected size.