The Trek Fetch+ 4 is Trek’s front-box cargo bike, built to carry kids in a box ahead of the handlebars. It was on closeout at $4,999.93 on Oct 28, 2026, down from $8,499.99, so it now costs about what my family’s Bunch Bike cost when I reviewed it. I haven’t ridden the Fetch+ 4. I have filmed a box bike, the Bunch Bike Original 3.0, and I’ll compare them below, along with Trek’s smaller Fetch+ 2. Everything here comes from Trek’s product pages, checked on Oct 28, 2026 and linked at the bottom.
The box and the seats
The box sits in front of the rider, so you can see your kids the whole ride. Trek says it can carry up to five children, with a box limit of 175 lb. The molded seats come with 5-point harnesses and recline one at a time or all together. Trek sells an extra bench for up to two more passengers, adapters for Maxi-Cosi and Britax Römer infant seats, and a rain cover. Those are add-ons, not included.
The bike’s total limit is 551 lb, including the bike. Trek lists the bike at 165.35 lb, which leaves about 386 lb for the rider, kids and cargo. Check that number against your family before you buy.
Motor, battery and range
The motor is Bosch’s Performance Line Cargo, rated at 250W and 85 Nm. It’s a mid drive tuned for heavy loads. The Fetch+ 4 is Class 1: pedal assist up to 20 mph, with no throttle.
The battery is a 750Wh Bosch PowerTube built into the frame. Trek calls it Bosch’s largest integrated battery and rates the range at up to 86 miles. A Bosch 4A charger is included.
Belt drive and gears
Instead of a chain and derailleur, the Fetch+ 4 uses a Gates CDX belt and an Enviolo CVP Heavy Duty rear hub, shifted with an Enviolo twist shifter that has its own display. Trek says the gear range is over 380%, meant for steep hills with a full load. An alloy chain guard covers the drive.
Brakes, suspension and steering
Tektro 4-piston hydraulic brakes handle the stopping, with 180mm and 203mm rotors. Trek lists both sizes without saying which end gets which. The SR Suntour Mobie A32 fork has 50mm of travel. Trek lists two tire sizes: a Schwalbe Pick-Up 20 x 2.15 in and a Schwalbe Pick-Up listed in the 60-584 size, with a Super Defense carcass and reflective sidewalls. Steering is linked by cable.
Everyday features
- Fit. The lowstep frame and a 200mm dropper post fit riders from 155 to 195 cm tall, about 5 ft 1 in to 6 ft 5 in, so two parents of different heights can share it.
- Parking. A double-leg kickstand holds the bike upright while you load it.
- Security. An Abus ring lock secures the rear wheel. Trek lists a Bosch Connect Module, which lets you set an alarm from the eBike Flow app.
- Display. You control the bike with Bosch’s LED remote, and the SmartphoneGrip holds and charges your phone as the display.
- Lights and fenders. A Herrmans 180 lumen headlight, a Trelock rear light with a brake light, and custom Fetch fenders come standard.
How it compares
Against the Bunch Bike Original 3.0, which I filmed: it’s also a front-box cargo bike, with a 500W rear hub, a 653Wh battery, a steel frame and a parking brake. Bunch rates it for up to four passengers, 350 lb total and 220 lb in the cargo area, and it was just under $5,000 when I reviewed it. On the Bunch, I got about 20 miles on throttle alone with an empty box. On paper, the Fetch+ 4 has a much higher total limit (551 lb), a bigger battery, a mid drive, a belt and Enviolo gearing at about the same price. The Bunch has a throttle, and the Fetch+ 4 doesn’t. Its box limit is lower (175 lb).
Against the Trek Fetch+ 2: Trek calls it a compact cargo bike, rated for up to 175 lb of cargo. It has the same Bosch Cargo motor, a 500Wh battery, up to 55 miles of range, 68.4 lb and a 441 lb total limit. It was $2,999.93 on Oct 28, 2026, down from $5,999.99. If your loads are lighter and you want something easier to store, the Fetch+ 2 costs $2,000 less. The Fetch+ 4 is for bigger loads and more kids.
FAQ
Have I ridden the Fetch+ 4?
No. This page is based on Trek’s product pages, checked Oct 28, 2026. I’ve filmed a different box bike, the Bunch Bike Original 3.0.
How many kids can it carry?
Trek says up to five children, with a 175 lb limit for the box and a 551 lb total limit, including the bike.
Does it have a throttle?
No. It’s a Class 1 pedal assist bike that helps up to 20 mph.
How much does it weigh?
Trek lists 165.35 lb (75 kg).
Is the closeout price permanent?
Trek marked it as a closeout at $4,999.93 on Oct 28, 2026, with a regular price of $8,499.99. Closeout stock can sell out, so check the current price.
Pros and cons (from the specs and sources)
Pros: front box seats up to five kids with harnesses; 551 lb total limit; 85 Nm Bosch Cargo motor; 750Wh battery rated to 86 miles; belt drive with Enviolo gearing; 4-piston brakes; 4A charger; lights, fenders, ring lock and alarm included; one size fits a wide range of riders; $3,500 off on closeout.
Cons: 165.35 lb, so storage and ramps matter; no throttle; 175 lb box limit; extra bench, infant seat adapters and rain cover cost extra; closeout stock may not last.
Who it’s for
On paper, the Fetch+ 4 fits families who want to replace car trips with two or more kids, have a garage or ground-floor place to park a very large bike, and are fine with pedal assist only. For lighter loads, the Fetch+ 2 is lighter and cheaper.
Price
$4,999.93 on trekbikes.com as of Oct 28, 2026, on closeout, down from $8,499.99.
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