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This Trek Charter+ 4 Nexus 5 belt drive 540 Wh Lowstep keeps maintenance to a minimum: Gates CDX belt, Shimano Nexus C7000 5-speed hub, Shimano MT200 hydraulic brakes. Bosch Performance Line motor and 540 Wh battery, for 30.60 kg in size M according to Trek. The assistance fades out above 25 km/h. Dark Web is a deep, understated and stylish black.
| 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 Nexus C7000 5-speed internal gear hub, Gates CDX belt (32T sprocket), 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 PRO 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 | 30.60 kg in size M (Trek figure) |
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At a glance
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For the rider who rides in all weathers, leaves the bike outside or in a damp garage and doesn't want demanding mechanics. It will also appeal to anyone who has neither the time nor the inclination to tinker.
Belt and internal gear hub: clean mechanics. This Charter+ 4 Lowstep replaces the chain and derailleur with a Gates CDX belt and a Shimano Nexus 5-speed hub. The gears work protected inside the hub shell, and the belt needs neither oil nor grease. The bolt-on adjustable rear dropout on the Alpha Platinum frame is used here to set the belt tension.
| 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: the Charter+ 4 Nexus 5 540 Wh Lowstep puts peace of mind ahead of gear range. At 30.60 kg in size M according to Trek, it even weighs slightly less than the derailleur-equipped R9 version.
An exposed derailleur goes out of adjustment at the slightest knock or in a tight parking spot. Here, the whole gear-change mechanism sits inside the Nexus C7000 hub: nothing sticks out from the side of the wheel, and the bike copes better with bike racks and the bumps of urban life.
The bolt-on adjustable rear dropout on the Alpha Platinum frame lets you tension the belt precisely. Once set, it stays stable for a long time; we check it at every service, along with the condition of the Bosch motor and the brake pads.
| Model | Motor / battery | Drivetrain | Fork | Weight (size) |
| 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) |
| Charter+ 4 Nexus 5 belt 800 Wh Lowstep | Bosch Performance Line 75 Nm / 800 Wh | Nexus 5 + belt | 63 mm coil | 31.50 kg (M) |
| Charter+ 4 Enviolo belt 540 Wh Lowstep | Bosch Performance Line 75 Nm / 540 Wh | Enviolo City + belt | 63 mm coil | 31.60 kg (M) |
| Charter+ 4 R9 540 Wh Lowstep | Bosch Performance Line 75 Nm / 540 Wh | Shimano CUES 9-speed | 63 mm coil | 30.80 kg (M) |
Our take: the same bike as the blue and green colours, only the shade changes. To ride further between charges, the Nexus 5 800 Wh Lowstep adds 260 Wh for 0.90 kg (31.50 kg in M).
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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.
Source: Trek size guide. Bike fitting available in our Béziers shop. |
| What servicing does the Nexus hub need? | Periodic servicing in the workshop; in between, it needs nothing from you. |
| Can the bike be left outside? | It copes with rain, but shelter extends the life of the battery and components. |
| Is the belt noisy? | No, it's virtually silent, even in dry weather. |
| Is the black glossy? | Dark Web is a deep black with an elegant finish. |
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The LVR Cycles verdict A Charter+ made for riders who want to ride without worrying about mechanics, with a protected hub and a grease-free belt. The deep black gives it a discreet look.
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Why buy from LVR Cycles? Our Béziers workshop services the Nexus hub, checks the belt tension and handles the Bosch updates, and advises you on storing the battery over the winter.
Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.
Data sheet
Specific References