Powerfly Electric Mountain Bikes

A rider on an electric mountain bike powers up a trail through a green field in the mountains.

So much adventure, so little stopping you

Powerfly is an electric mountain bike that supercharges the fun in every adventure. These models are built with powerful Bosch Performance Line CX drive systems and trail tech that helps you tackle steeper terrain, ride farther and faster on singletrack and explore more of your world on dirt.

'The Trek Powerfly FS 9 blends sporty handling, efficient propulsion and long-distance comfort into a harmonious overall concept. The result: pure riding fun!' – E-Mountainbike Magazine Editors

Experience more

Everything you already love about mountain biking – but more of it! Powerfly doubles your power, speed and endurance so there’s always time and energy for another lap.

3 hours
Range on harder, difficult terrain

5 hours
Range on easy, smooth terrain

With e-MTB and e-MTB Lite modes, you can set your assist level and forget it. You’ll feel it kick in with your chosen level of assist on loose, steep terrain and ease off when you don’t need it.

Anyone can attach a motor to a trail bike, but a great e-MTB amplifies the experience you already love. With Rail, each e-MTB mode delivers power naturally and predictably across the full range of assist, so you’ll never be left hanging or lurching. The e-MTB mode gives you a little bit more punch; e-MTB Lite takes a step back and lets you do the punching.

Powerfly amplifies the experience you already love, delivering a smooth boost of power naturally and predictably across the full range of assist.

Battery size
625Wh-500Wh

Charge time
3-5 hours

A photorealistic rendering of a sports car and its internal workings turning a corner.

If you own something with a button or a screen, you probably already depend on Bosch. But what you might not know is that this technology provider has been quietly running your devices for decades. Since 1886, they’ve built a reputation for precision and quality. Today, their technology is trusted in nearly half the world’s phones, millions of homes and offices and garages around the globe, and even on the International Space Station. Does this make them the most over-qualified supplier of e-bike systems ever? Well, yeah. But we wouldn’t partner with anyone that wasn’t. Why? Because dependability is everything. You can count on Bosch when it matters. (Just ask an astronaut.)

Bosch drive systems are renowned for their reliability and ease of use. They deliver a powerful, natural-feeling ride so you can focus on enjoying the trail. Plus, Bosch offers global support and service that can’t be matched!

Whether you’re riding a rugged morning commute or planning an overnighter, you can equip all Powerfly models with accessories that are right for the way you ride, including racks, fenders, lights and a kickstand.