Trek Allant+ 9.9S Review Trek’s sleek, top-end commuter e-bike asks to do more

If you’re serious about replacing car trips with bike trips—or replacing your car altogether with a bike—then you should look into a bike that’s just as serious as you are. You’ll want a bike with plenty of range to get you wherever you need to go; plenty of power to get you up to speed quickly and zipping around town swiftly; and a bike that has all riding conditions covered, from low light to rainy days. With its $6,000, top of the line commuter ebike, the Allant+ 9.9S, Trek provides such a bike for commuters who want to leave the car behind as much as possible.

The Allant+ 9.9S is based around the always-reliable Bosch Performance Line Speed class-3 motor, which delivers 75Nm of torque for quick acceleration from stops and speeds of up to 28 miles per hour. A 625Wh battery integrated into the down tube of the carbon fiber frame provides—when ridden conservatively without any cargo—range into the 50 mile territory. But if you want to ride the bike all-out in turbo mode all the time, you can still get about 25 miles from this bike, more than enough for most commutes and errands. There is also the option to about double the range of the bike by connecting a 500Wh Bosch Range Boost battery to the down tube. About 4.5 hours will get you a full charge, so you can plug in at work and be ready for the ride home.

At a comfortable pace in turbo mode, without too much exertion, you can easily cruise along at 21 miles per hour. A little more effort lets you tap into that extra top-end speed of up to 28mph when you want it. The bike offers a sporty ride and feels in control even at the top end of the speedrange. And thanks to the wide 27.5”x2.4” tires, you can take out much of the vibrations from the road by dropping a little bit of pressure from the tires.

Because both the motor and battery integrate into the frame, the Allant has a super sleek look. And because it is made of OCLV carbon, the bike also features smooth lines that flow gracefully from one tube to the next, giving this bike a polished look. The cables also are all routed inside the bike for additional good looks. The only part of the bike detracting slightly from the looks is that the handlebars feel a bit busy between the shifters/brakes, lights, bell, display/phone mount and all their corresponding cables.

Looks are important, but it is the many integrated features and small details that put this bike truly at the front of the commuter pack. We loved the integrated front light with two different brightness levels as well as the integrated taillight, which was surprisingly bright and attention grabbing. It’s nice to know that as long as your bike’s main battery has a charge, you have powerful lights with you that are ready to go whenever—and that you don’t have to remember to charge individually. The fenders, while they could be just a touch longer for riding in very wet conditions, are nice to have to protect against light showers and road muck. The kickstand is well designed, too, holding up the bike’s 50 pounds, and then some when loaded up with cargo, and then folding out of the way when it’s time to ride. But if your bike should manage to fall onto the drive side, or get loaded into the back of a pickup truck with less than attentive care, there is a rear derailleur protector connected to the frame. That’s a smart design that we know will save the derailleur of most riders, even the most careful among us, more than once. We hope more brands take a cue from Trek on this.

Another well designed feature on this bike is the rear rack. Proprietary, integrated rear racks run the risk of being less functional in exchange for looking cool. Not this rack—it looks good and works flawlessly, letting you carry a bag on either side and adjust them as needed for balance. The only thing missing is a top mounted rack, though it’s nothing we miss when the bike is outfitted with a couple of good bags. One minor miss with small accessories for this bike comes down to the display. And it’s more of a philosophical disagreement than a miss, really. The display offers only a tiny window to view ride data, and then a mount to hold a smartphone which connects to the bike via Bluetooth to display turn by turn navigation and ride metrics like speed, distance and more. While that’s nice to have, for most trips we don’t want to pull out and connect our phones. Instead we would like a larger, easier to read display that’s ready to go as soon as the bike is on.

For the drivetrain, this bike gets a spec that we would expect from a $6,000 bike, courtesy of a Shimano XT/SLX drivetrain. The 12-gear cassette provides ample range despite the bike having just a single 46-tooth chainring up front. With the 10-45T cassette in the rear, you get the range to both spin up inclines with plenty of cadence, and charge down hills or get to work on time when you snooze the alarm one too many times. And when you need to move along at speed, you can do so with confidence thanks to the powerful stopping force of the four-piston hydraulic disc brakes. They provide plenty of confidence that you are always in perfect control.

With its ample range, power and well-built accessories, the Allant+ 9.9S asks to do more—longer rides, faster speeds, more cargo, more of everything. And if you’re so inclined, this bike could truly replace most car trips.

Price: $6,000

Weight: 51.5 lbs

Construction: Carbon

Brakes: Four-piston hydraulic disc brakes

Battery: 625Wh Bosch

Class: 3 (28mph assist)

Minimum Range Tested in Turbo: 25 miles (hilly conditions)

Maximum Tested Range: 50 miles (hilly conditions)

Charge Time: approximately 4.5 hours

Target Audience: Serious commuters possibly looking to get rid of a car

Drivetrain: Shimano 12-speed Shimano XT/SLX drivetrain (46T chainring, 10-45T cassette)

What We Loved: Enough range to accomplish most errands and commutes in Turbo; plenty of gears for going uphill and down; powerful disc brakes; bright integrated lights front and rear; Strong rack

What Didn’t Hit: handlebars a little cluttered; The on-board display is too small

What We Tell Our Friends: A very capable, top-end commuter that ranks among the best e-commuters we’ve tried.

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