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Electric trekking bike Trek Charter+ 4 R9 540 Wh Lowstep lunar silver

Electric trekking bike Trek Charter+ 4 R9 540 Wh Lowstep grey: Bosch 75 Nm, CUES 9-speed, 30.80 kg in M

$5,351.50 Incl. Tax

Color

Grey

Size

Size charts

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Description
Product Details

Trek Charter+ 4 R9 540 Wh Lowstep Lunar Silver: car-free commuting

The Trek Charter+ 4 R9 540 Wh Lowstep is an electric trekking bike that comes fully equipped: a step-through Alpha Platinum aluminium frame, a 75 Nm Bosch Performance Line motor, a 540 Wh PowerTube battery and a 9-speed Shimano CUES derailleur. Trek quotes 30.80 kg in size M. Like any e-bike, its assistance stops at 25 km/h. The Lunar Silver colour is a bright silver grey, understated and easy to match.

Technical specifications

Frame	Alpha Platinum aluminium, Lowstep step-through frame, Bosch battery inserted through the top of the down tube, cables integrated through the cockpit, integrated rack and mudguards, bolt-on adjustable rear dropout
Motor	Bosch Performance Line, 250 W, 75 Nm
Battery	Bosch PowerTube 540 Wh
Controls / display	Bosch Purion 200
Drivetrain	Shimano CUES 9-speed Linkglide: LG300 11-46 cassette, LG500 chain, ProWheel alloy 170 mm chainset
Fork	SR Suntour SF25-NVX32, coil spring, adjustable preload, 63 mm travel
Brakes	Shimano MT200 hydraulic disc, 180 mm rotors
Wheels / tyres	Bontrager Kovee double-wall Tubeless Ready 23 mm rims / Bontrager E6 Hard-Case Lite 27.5 x 2.40 in tyres with reflective sidewalls
Cockpit	Alloy 630 mm handlebar, 25 mm rise, Bontrager alloy 80 mm height-adjustable stem, Blendr compatible, Trek Ergonomic Comp grips
Saddle / seatpost	Bontrager Boulevard / alloy suspension seatpost 31.6 mm, 300 mm
Equipment	Trek Charter aluminium mudguards, rack integrated into the frame, Pletscher Comp Flex 40 kickstand, Bontrager City pedals
Weight	30.80 kg in size M (Trek figure)

At a glance

✓ Alpha Platinum Lowstep step-through frame	✓ Bosch Performance Line 75 Nm
✓ PowerTube 540 Wh battery	✓ Shimano CUES 9-speed 11-46
✓ Integrated rack and mudguards	✓ 30.80 kg in size M

Who is it for?

For the commuter who wants to leave the car in the garage and ride into the centre of Béziers every morning, stepping off effortlessly outside the office. It will also suit anyone new to e-bikes looking for a fully equipped model straight away, with no accessories to add.

The LVR workshop view

A step-through frame designed for frequent stops. The Charter+ 4 R9 Lowstep is built on Alpha Platinum aluminium, one of the higher grades of Trek's alloys. Its low step-over lets you put a foot down at every red light without contortions, and Trek has integrated the rack and mudguards into the frame, avoiding add-on mounts that work loose over time. The 540 Wh battery slides in through the top of the down tube.

	Shimano CUES derailleur	Nexus 5 hub + belt	Enviolo hub + belt
How it works	9 sprockets and a Linkglide chain	5 gears enclosed in the hub	Continuously variable, no steps
Maintenance	Chain needs cleaning and lubing	Grease-free belt, sealed hub	Grease-free belt, sealed hub
Reference bike	Charter+ 4 R9, 30.80 kg (M, 540 Wh)	Charter+ 4 Nexus 5, 30.60 kg (M, 540 Wh)	Charter+ 4 Enviolo, 31.60 kg (M, 540 Wh)
What it means	Widest gear range	Shifts at a standstill, clean	The ideal gear at any moment

In short: this is the entry point to the step-through Charter+, with a 9-speed Shimano CUES derailleur and a 75 Nm Bosch motor. At 30.80 kg in size M according to Trek, it's aimed at everyday journeys and half-day rides.

The Shimano CUES drivetrain uses Linkglide technology: thicker cassette teeth and an LG500 chain designed to last under the torque of an electric motor. With an 11-46 cassette, you always have an easy gear for pulling away from the lights on the Allées Paul Riquet or getting going again after a roundabout, without straining your knees.

The 63 mm SR Suntour SF25 coil fork and the suspension seatpost smooth out cobbles and kerbs. The 2.40-inch E6 Hard-Case Lite tyres, with reflective sidewalls, add air volume and make the bike visible from the side when you ride home after dark.

Which Charter+ should you choose?

Model	Motor / battery	Drivetrain	Fork	Weight (size)
Charter+ 4 R9 540 Wh Lowstep	Bosch Performance Line 75 Nm / 540 Wh	Shimano CUES 9-speed	63 mm coil	30.80 kg (M)
Charter+ 4 R9 800 Wh Lowstep	Bosch Performance Line 75 Nm / 800 Wh	Shimano CUES 9-speed	63 mm coil	31.70 kg (M)
Charter+ 4 Trail 540 Wh Lowstep	Bosch Performance Line 75 Nm / 540 Wh	Shimano CUES 9-speed	XCR32 80 mm	27.80 kg (M)
Charter+ 4 Nexus 5 belt 540 Wh Lowstep	Bosch Performance Line 75 Nm / 540 Wh	Nexus 5 + belt	63 mm coil	30.60 kg (M)

Our take: at 30.80 kg in M, this R9 540 Wh is 0.90 kg lighter than the R9 800 Wh (31.70 kg). If you never want to grease a chain again, the Nexus 5 belt 540 Wh Lowstep weighs 30.60 kg, with 5 gears instead of 9.

LVR sizing advice

You get onto the Lowstep frame from the front, without lifting your leg: the size is chosen mainly on saddle height and reach. Trek's ranges overlap between M and L (170 to 173 cm); in that case, the smaller size gives a more upright position and the larger one more room for long rides. The height-adjustable stem then fine-tunes the position.

Size	S	M	L	XL
Rider height (cm)	147-155	155-173	170-185	185-203
Inseam (cm)	69-88	77-96	80-99	86-105
Wheels (in)	27.5	27.5	27.5	27.5
Seatpost (mm)	300	300	300	300

Source: Trek size guide. Bike fitting available in our Béziers shop.

Your questions

Is 540 Wh enough for commuting?	For most commutes, yes; consumption varies with terrain, wind and the mode you choose.
Is the Lowstep frame stiff?	Yes, the Alpha Platinum frame is designed for this kind of loaded, everyday use.
Can I charge it at the office?	Yes, the battery comes out of the frame and charges from a standard socket with the Bosch charger.
Does the grey get dirty quickly?	Lunar Silver hides dust well; a damp cloth is enough to bring back its shine.

The LVR Cycles verdict

A fully equipped electric trekking bike to replace the car on short and medium journeys, with the simplicity of a modern derailleur. Its silver grey stays elegant in every season.

Pros
+ Fully equipped, ready to ride
+ Very accessible step-through frame
+ Durable CUES drivetrain

Cons
- Over 30 kg to carry up stairs
- Purion control without a large display

Why buy from LVR Cycles? In Béziers, we adjust the stem to your position, carry out diagnostics and updates on the Bosch system, and advise you on the lock and insurance you'll need for a bike parked in town every day.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.

Reference TRK-5341800

Data sheet