Cube Compact Hybrid Comfort

Cube Compact Hybrid Comfort

The Cube Compact Hybrid Comfort is a one-size, 20-inch step-through Bosch e-bike with five-speed hub gears and fitted commuting equipment, aimed at assisted commutes, errands and holidays.

  • Step-through 20-inch frame: Easy to get on and off, in a compact shape for everyday trips and holidays.
  • 75 Nm Bosch Performance Line: Smart System assistance for climbs and for rides with a bag on board.
  • 545 Wh PowerPack: Current Smart System battery capacity for assisted commutes and errands.
  • Nexus five-speed hub: Enclosed gears for simpler, lower-maintenance town riding.
  • Lights, guards and a rear carrier: Fitted from the start, so wet commutes and a bag of shopping are covered.
  • Adjustable saddle and stem: One frame can be set up for different riders across a wide height span.

Bikesy's Verdict

The Compact Hybrid Comfort suits riders who want assisted commutes, errands and holiday miles on a compact step-through bike, with five hub gears and the everyday kit already fitted. This Comfort 545 pairs a 75 Nm Bosch Performance Line Smart System and a 545 Wh battery with a Shimano Nexus hub, plus a rear carrier, lights and mudguards. One size, adjusted at the saddle and stem, is intended for a broad spread of riders. What can change that recommendation is the weight and the fixed frame: published figures are 23.8 kg or 24.0 kg by finish, so the small wheels do not make lifting easy, and the bike will not fold when storage has to be truly compact. If that weight fits how you handle a bike, this is a straightforward and appealing one to own.

Pros

  • Compact step-through frame and 20-inch wheels for commutes, errands and holidays
  • 75 Nm Bosch Performance Line Smart System with a 545 Wh battery
  • Shimano Nexus five-speed hub for lower-maintenance town gears
  • Lights, mudguards, rear carrier, kickstand and bell fitted from the start
  • Saddle and stem adjustment so one size can be shared across a wide height span

Cons

  • Published weight of 23.8 kg or 24.0 kg, depending on finish, makes it heavy to lift
  • Five hub gears and a rigid fork suit simple town use, with fewer ratios than a nine-speed derailleur bike and no suspension
  • The frame does not fold, so it will not pack down like a folding e-bike

The Cube Compact Hybrid Comfort suits you if assisted commutes, errands and holidays are the riding you have in mind. Its appeal is a compact step-through layout you can adjust for more than one person, with hub gears and everyday fittings chosen for that kind of use.

This is the latest official UK version, the Compact Hybrid Comfort 545, with one equipment build and the 545 Wh Bosch Smart System. The manufacturer does not currently list this latest official version in its UK catalogue. The earlier Comfort 500 is a previous generation, with a 500 Wh battery, the older Bosch Performance drive and an earlier UK list price of £2,299. The 545 has a UK RRP of £2,499, and the price on an offer can differ from that list figure.

Set up for the trips you repeat

The aluminium step-through frame and 20-inch wheels give the bike its compact footprint, and the low step suits the stops that come with commuting and errands. Bosch assistance is there for the climbs and for days when the carrier is loaded. Lights, mudguards, a bell, a centre kickstand and a semi-integrated rear carrier are already fitted, so the first wet trip to work can happen without an accessories run. Cube warns that supply-chain issues can change delivered components, so the equipment on a particular offer is the kit you are actually buying.

Assistance and five hub gears

The drive unit is a Bosch Performance Line Smart System with 75 Nm, paired with a PowerPack 545 battery. For commuting and errands, that is the assistance you are choosing: help for climbs and for a bike with something on the carrier.

Shifting is a Shimano Nexus five-speed hub, controlled by a Revoshift. The gears sit in the rear hub, with a single chain line, which is the lower-maintenance setup for everyday assisted riding. The Cube Compact Hybrid 545 is the same-era compact Bosch alternative if you want nine derailleur ratios instead. The fork on this Comfort build is rigid aluminium, matching a simple bike for regular road use.

Carrying, storage and fit

A rear carrier rated to 15 kg is fitted, so a shop or a bag of work kit has a place immediately. The frame is front-carrier ready, and a compatible front carrier rated to 12 kg is an extra if you later want to split a load. Maximum rider weight is 100 kg and maximum system weight is 142 kg. Carrier ratings still have to respect that system total.

Published bike weight is 23.8 kg or 24.0 kg, depending on finish. The 20-inch wheels can make the bike look easier to pick up than it is, so judge a lift, a stair or a car rack by those figures.

The BySchulz Speedlifter Twist Pro stem can turn the handlebar, which narrows the bike for storage. The frame does not fold. When folded storage or transport is essential, the Fold Hybrid Comfort 545 is the Cube with the folding frame.

There is one step-through size, and Cube's height guidance is approximate. Saddle height and the adjustable stem are what bring different riders onto it. Towards either end of that published band, the position those adjustments give you is the one you will ride.

With the saddle and bars set, the Comfort 545 is a bike to keep ready for an ordinary week: assisted miles, a bag on the carrier, and a compact step-through shape for the space you actually have.

Key Features & Benefits

  • Speedlifter stem turns the bar: Narrow the bike for storage in a hallway, shed or holiday space.
  • Front-carrier mounts: Add a compatible front carrier later if you want carrying space at the front as well, within the published limits.

Geometry

2026 Comfort 545, 545Wh Comfort build, step-through, one size

MeasurementOne size
FrameStep-through
Wheel size20 inches
Reach408 mm
Stack545 mm
Effective top tube580 mm
Head angle72 degrees
Seat angle72 degrees
Chainstay445 mm
Wheelbase1080 mm
Seat tube480 mm
Head tube260 mm
Other published measurementCube's separately labelled protrusion height -80 mm is 500 mm

Alternatives to Consider

The Cube Compact Hybrid 545 is a same-era compact Bosch alternative with nine-speed derailleur gearing. This Comfort build uses a five-speed hub. Pick the Compact Hybrid if you want the extra ratios, and the Comfort if you want the enclosed hub.

The Cube Fold Hybrid Comfort 545 has the folding frame, and it is the one to choose when folded storage or transport is essential. On the Compact Hybrid Comfort the frame stays in one piece, and the stem can turn the handlebar to narrow the bike.

Full Specification

545Wh Comfort build

DetailSpecification
Official nameCompact Hybrid Comfort 545
Generation2026, 545 Wh Bosch Smart System
UK RRP£2,499
Builds and sizesOne equipment build, one step-through size, two published finishes

Shared specification, both published finishes

These details apply to the 2026 545Wh Comfort build. Weight is the published exception and differs by finish.

ItemSpecification
Frame and forkAluminium Superlite step-through frame with integrated rear-carrier structure, front-carrier mounts and rigid aluminium 20-inch fork
MotorBosch Performance Line Smart System drive unit, 75 Nm
BatteryPowerPack 545
DisplayPurion 200 integrated display
ChargerBosch 2A charger
DrivetrainShimano Nexus SG-C7000-5D five-speed rear hub and Revoshift control; 44T crankset, 24T sprocket and KMC Z610 chain
BrakesShimano BR-MT200 hydraulic discs, 180/160 mm rotors
TyresSchwalbe Super Moto-X Double Defense, 62-406
Fitted everyday equipment20-inch semi-integrated rear carrier, front and rear lights, mudguards, centre kickstand and bell; BySchulz Speedlifter Twist Pro adjustable stem
Weight23.8 kg or 24.0 kg, depending on finish
Maximum rider weight100 kg
Maximum system weight142 kg
Rear carrier limit15 kg. Individual maxima must still respect the 142 kg system limit

Optional equipment, 2026 545Wh Comfort build

ItemDetail
Front carrierNot supplied. Frame is front-carrier ready. Compatible ACID Compact 20-inch front carrier, published limit 12 kg, still subject to the 142 kg system limit
Rear carrier adapterRear carrier accepts a compatible ACID RILink adapter. Adapter is not supplied