Folding e-bikes have steadily evolved into genuinely capable daily commuters, offering riders a practical blend of compact storage and everyday usability. As cities grow denser and more people turn to mixed-mode travel, the demand for bikes that are easy to store, carry, and ride has never been higher. This shifting landscape sets the stage for Tern’s latest update to its well-known Vektron lineup.

The upgrade to Tern’s Vektron series shows how far folding e-bikes have come in combining portability with real everyday performance. Designed for riders who need a compact bike that doesn’t compromise on power, comfort, or practicality, the 4th-generation Tern Vektron models build on the brand’s established reputation for reliable urban mobility while introducing meaningful upgrades that improve the riding experience.

Designer: Tern

At the core of the new Vektron folding e-bike is a Bosch Performance mid-drive motor that delivers up to 75 Nm of torque and smooth, responsive pedal-assist. It pairs with a 545-Wh battery integrated into the frame, delivering a range of up to about 75 miles under light assist conditions. The motor and battery work with Bosch’s Smart System, allowing riders to access ride data, navigation, and system customization through a connected smartphone, and giving the bike optional GPS-based security features.

The 4th-generation P5i configuration brings one of the most practical changes to the lineup: a Gates Carbon Drive belt system paired with a 5-speed Shimano Nexus internally geared hub. This setup runs quietly and requires minimal maintenance, making it well-suited for riders who frequently fold and store their bike in tight indoor spaces. For those who prefer a wider gear range or a sportier feel, the Vektron is also available as the P10, equipped with a traditional 10-speed derailleur drivetrain. The frame uses hydroformed 6061 aluminum and Tern’s reinforced OCL+ hinge, ensuring that the bike remains stable even under the increased torque of the updated Bosch motor. It folds in under 10 seconds into a compact structure that fits easily into car trunks, office corners, elevators, and public transport. When folded, it can stand upright or roll, adding convenience for commuters moving through tight or crowded spaces.

Designed to accommodate a broad range of riders, the cockpit includes an adjustable stem and a telescopic seat post suitable for user heights between approximately 4’10” and 6’5″. Wide 20-inch Schwalbe Big Apple tires soften rough pavement and enhance stability, while Magura hydraulic disc brakes handle braking with consistent control, even in wet conditions. For daily commuting, the Vektron includes a rear rack rated for roughly 60 lb of cargo, full-coverage fenders, integrated lighting, and compatibility with additional front-mounted accessories. These practical features allow it to function as a full-fledged urban transporter capable of replacing short car trips and handling mixed-mode travel. The P5i model comes at a price of $4,099, and the P10 variant costs $3,699 with shipping in North America commencing from December 2025.

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