All around the world, the way we get from A to B is changing. With the world on the cusp of auto-mobility, ride sharing, and the mainstream arrival of electric vehicles, it’s an exciting moment for transportation. To help drive this force of change, we developed the world’s most compact Bosch-driven electric bike. The Tern Vektron takes everything great about folding bikes—multi-modal commuting, portability for travel and storage—and accelerates it. Got more questions? Read our FAQs.
- Fits easily on buses and subways for electric multi-modal commuting
- Resizes in seconds to fit riders 147 – 195 cm (4’10” – 6’5”) so a single bike can be shared by the family
- Stores under a desk for convenient theft protection; no need to bring a heavy lock
- Stash a pair in the trunk of a car for weekend getaways
- German-engineered Bosch Active electric drivetrain—the industry leader in electric bike technology
- T-Tuned™ geometry for a full-sized ride and comfort
- Valo™ lighting system, with 150 lumens of power, for 24-hour visibility
- Rear Cargo Rack™ works seamlessly with Yepp child seats—Maxi Easyfit or Junior Easyfit—for carrying kids
OCL+™ Frame Joint
Robust folding technology
A heavy-duty update to our iconic OCL frame hinge, the OCL+ is built to exceed ISO 4210 and EN 15194 testing requirements. Leveraging the hinge design of the long-tail Tern Cargo Node, the OCL+ features a single-shaft design, advanced welding techniques, and robust gussets, so it stays stiff and strong during even the fastest commutes.
Adjust to fit
The Andros is our patented adjustable stem that lets you set your handlebars where you want—no tools, no fuss. In just seconds, you can set your riding position to long and low in a tough headwind, or upright and comfy for riding around town. You decide how you want to ride and the Andros makes your bike fit.
CARRY YOUR BIKE COMFORTABLY
We reengineered the underside of the age-old bike saddle into a comfortable grip and shoulder pad. Up top, the dual-density construction and gel cushioning will keep you comfortable on the road, and the impeccably finished vacuum construction makes the saddle waterproof and easy-to-clean. Down below, the GripPad™ on the underside of the saddle lets you grip the saddle nose with comfortable confidence when your rolling your folded bike.
Shimano Deore Hydraulic Disc Brakes
Stop on demand
Leveraging technology that’s been working successfully on motorcycles for decades, these brakes will bring you to a confident stop—even in rain, snow, or mud. All it takes is the gentle pull of just two fingers. The caliper design is both ridged and durable, and the non-corrosive mineral oil brake fluid is gentler on the environment than most hydraulic brake fluids.
Bosch Active Drive Unit
Adapted from Bosch’s German-engineered automotive applications, the Active Drive Unit can take you up to 25 km per hour (20 mph in the U.S.) and operates dependably—day in and day out. Its high-performance electronics, whisper-quiet operation, and low-levels of vibration are remarkable—especially given the lightweight, ergonomic design.
Bosch PowerPack Battery
This impressive high-energy, high-power cell clips on and off your bike. The best-in-class design charges fast and lets you ride longer and further between charges. You’ll be impressed by its long lifespan, light weight, and ease of charging. Select from 300, 400 and 500 Wh variants and forget about range anxiety.
Bosch Purion Control Panel
COMPACT CONTROL CENTER
The on-board computer lets you switch between five different riding modes, and feeds you handy information like speed, battery level, and distance. It optimizes shifting actions and constantly updates you on the remaining range, just like a typical German car. Best of all, it’s now more compact and robust than ever.
Valo™ Direct Light
Our 41 lux, 150 lumen Valo Direct lights up your ride without adding the drag or weight of a dynamo. It’s engineered to sit inside the handlebar stem, where it’s safe from knocks, bumps, and theft. That means it’s protected while folding, and optimally positioned to give you the most light.
The [Vektron's] Atlas rack can haul 27kg, and is also compatible with a child bike seat, a great option for anyone combining their commute with dropping off the little ones.
Electric Bike Report
It’s not super often that I ride a folding bike and am able to forget it’s a folding bike. (...) The Tern Vektron S10 is a rare exception to this rule.
An electric bike that gets you swiftly through the streets, but can also be parked next to your desk in the office or taken along on the commuter train: That's exactly what modern e-folding bikes are supposed to offer. And that's where the Tern Vektron S10 is currently the recommendation par excellence.
Folding bikes are a great option if storage space is an issue. This year, we've tried a lot of them, and they're all great for different reasons. But I haven't found anything I like better than the Tern Vektron S10.
The Tern Vektron S10 is a masterpiece! Perfect riding performance, great folding principle, competent details, great accessories. Clear price-performance tip!
The New Wheel
The Tern Vektron (2021) combines a serious folding commuter bike and the more powerful Bosch Performance Line (Gen 3) drive system to create a bike that customers have been asking for: a folding electric bike with ample power and a ride quality that defies logic.
The Vektron also has a high-end Bosch Performance motor and computer that makes pedaling smooth and easy.
*Note: These are our standard model specifications. The bike's weight and folded dimension may not include racks and fenders. The specifications for your country may differ slightly. We do our best to ensure that the specifications listed here accurately reflect the exact parts found on our production bikes. However, component changes do occur for various reasons and there may be brief delays on site updates. We reserve the right to make component changes without prior notification, which may cause discrepancies with the information listed on the web.