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Tern Vektron P5i

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The Vektron® is a compact electric bike for commuting and urban adventures. While most folding e-bikes force a trade-off between portability and ride quality, the Vektron delivers both, combining a stiff, responsive frame, premium Bosch power, and a patented fold that packs down in seconds. The result? A smooth, stable, and powerful ride you can take anywhere.
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$6,399.00
$6,399.00

Description

Details

Country of origin: please note that unlike most of the rest of our bikes, Tern bikes are not made in Europe.  The Bosch motor and battery are made in Europe.

The Vektron is a compact electric bike for commuting and urban adventures. While most folding e-bikes force a trade-off between portability and ride quality, the Vektron delivers both, combining a stiff, responsive frame, premium Bosch power, and a patented fold that packs down in seconds. The result? A smooth, stable, and powerful ride you can take anywhere.

Exceptional Ride

With a rigid frame and handlepost that minimize flex, dialed-in geometry, and best-in-class Bosch drivetrain, the Vektron delivers exceptional ride quality that's hard to match among folding bikes—confident, stable, and effortlessly smooth. Meanwhile, those seeking a quieter, cleaner ride with less upkeep will appreciate the belt drive and internal gear hub options.
a man loading a folded Tern Vektron into a car trunk 

Folds in a Flash

Designed for urban dwellers and multimodal travelers, the Vektron quickly folds down into a compact, space-saving package that's easy to transport and store. Just a few lever flips and it's ready to go on the metro, ride in the car boot, or fit into a hallway nook.
 
A guy rolling tern vektron through elevators

Roll with It

Why carry when you can roll? Thanks to a user-centric design, the folded Vektron rolls easily through train stations, elevators, and in & out of your favorite cafe—bike in one hand, iced coffee in the other.
 
folded vektron stands on its rear rack at metro station

Stand It Up

No awkward leaning or holding required. Once folded, the Vektron stands upright on its rear rack ends or props up securely when placed lengthwise, making it effortless to store, park, or pause on the go.

Comfort That Fits

The Vektron’s cockpit includes an adjustable stem for your ideal riding position, a telescopic seatpost to fit a wider range of rider heights, swept-back handlebars, and wide ergonomic grips. It resizes in seconds without tools to fit riders from 147 to 195 cm (4’10” to 6’5”), so everyone gets a ride that always feels just right.

Tested for Safety

Third-party tested for EN 15194 compliance, the Vektron meets strict requirements for e-bike safety, performance, and design. Its Bosch eBike system—including the motor, battery, and charger—is certified to UL 2849, ensuring electrical and fire safety to give you total peace of mind whether you're riding or charging indoors.
 

What makes it a P5i?

  • Powerful Bosch BES2 Performance motor provides up to 65 Nm of torque and 300% support
  • Intuitive, easy-to-read display keeps you informed and in control on the road
  • PowerPack 400Wh battery lets you ride up to 112 km (70 mi) on a single charge
  • Shimano Nexus 5 internally geared hub with 263% gear range and twist shifter offers smooth, effortless shifting across changing terrain
  • Silent, grease-free, and low-maintenance Gates Belt Drive
  • ABUS frame lock, conveniently keyed alike with the battery

Vektron highlights

  • Best-in-class Bosch drivetrain ensures efficient, comfortable, and natural-feeling pedal assist
  • Stiff frame & dialed-in geometry guarantees a ride that outshines many full-sized bikes
  • Folds down compact in 10 seconds to fit in cars, trains, and closets
  • Stands upright and rolls when folded—easy to move, easy to store
  • Adjustable cockpit resizes in seconds to comfortably fit riders 147 - 195 cm (4’10” - 6’5”)
  • Hydraulic disc brakes for all-weather stopping power
  • Atlas V Rear Rack with 27 kg load capacity, compatible with KLICKfix, Racktime SNAPIT 2.0, and Ortlieb Quick-Lock 2.1 & 2.2 systems
  • UL 2849-certified & tested in compliance with EN 15194, meeting strict eBike safety standards
Tern OCL Joint - Folding bike frame latch

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.

 

Tern Physis Handlepost - Award-winning folding bike technology

Physis 3D Handlepost

The new benchmark

Five patented technologies and unique manufacturing technology add up to the strongest, stiffest folding handlepost available. The Physis uses a special manufacturing process called 3D forging, which forms the post from a single piece of aluminum, eliminating all welds.

 

Tern Andros Stem - Adjustable Bike Stem

Andros Stem

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.

 

Magura Hydraulic Brakes for electric cargo bikes

Magura® MT4 Hydraulic Disc Brakes

Hydraulic disc brakes give you excellent stopping power, working effortlessly even in rain, snow, or mud. All it takes is the gentle pull of just two fingers. With mineral oil-based brake fluid that is gentler on the environment than most hydraulic brake fluids, and Magura's Easy Bleed Technology, your Vektron is ready for a safer ride

SPECIFICATIONS

General Info
  • Speeds: 1 x 5
  • Weight: 21.4 kg (47.2 lb)
  • Gear Inches: 34" - 90" (2.75 - 7.22 m)
  • Frame Sizes: One size
  • Folding Size: 42 × 85 × 69 cm (16.5 × 33.5 × 27.2 in)
  • Folding Time: 10 sec
  • Distance:Seatpost to Handlebar:62 - 69 cm (24.4 - 27.2 in)
  • Distance: Saddle to Pedal: 67 - 110 cm (26.4 - 43.3 in)
  • Suggested Rider Height:147 - 195 cm (57.9 - 76.8 in)
  • Max Gross Vehicle Weight:125 kg (275.6 lb)
  • Max Rider Weight:105 kg (231.5 lb)
 
Frame
  • Frame: Tern Vektron, 6061-AL, hydroformed aluminum, OCL+ joint, 3 patented technologies
  • Fork: Tern Tarsus, 6061-Al, hydroformed
 
Cockpit
  • Handlepost:Tern Physis 3D, 3D forged, 5 patented technologies, 12°, 350 mm
  • Stem:Tern Andros, adjustable, forged construction, patented technology
  • Headset:Tern Flux by FSA, cartridge bearings, Physis integrated
  • Handlebar:Tern Sweep, 6061-AL, Tern Andros adapted
  • Grips/Bar Tape:Ergon
  • Saddle:Tern Upright by Velo
  • Seatpost:Tern Telescope, 34.9/30.9 mm
  • Seatpost Clamp: Tern Collar
 
Brakes
  • Front Brake: Magura MT4, hydraulic disc
  • Rear Brake:Magura MT4, hydraulic disc
  • Brake Levers: Magura, hydraulic disc
  • Brake Cable & Housing:Magura, hydraulic disc
 
Wheels
  • Front Hub: Disc, aluminum
  • Rear Hub: Shimano Nexus 5
  • Spokes & Nipples:Stainless steel
  • Rims: Kinetix Comp, for disc
  • Tires:Schwalbe Big Apple, Performance Line, 55-406, puncture protection, Reflex
 
Transmission
  • Shifter: Shimano Nexus, 5 spd
  • Crankset:Tern custom, Gates CDX CNC machined beltring
  • Cassette/Freewheel:Gates CDX, precision CNC machined cog
  • Chain:Gates Carbon Drive CDC belt
  • Pedals:MKS EZY
  • Shifter Cable & Housing:Shimano
 
E-System
  • Motor: Bosch BES2 Performance, max speed 20 mph, 65Nm torque
  • Battery: Bosch 400Wh PowerPack
  • Display: Intuvia
  • Range: 400 Wh: 45-112 km (28-70 mi)
  • Charger: 4A
 
Bells & Whistles
  • Chainguard: Tern Custom, full chain cover
  • Kickstand: URSUS, rear mount
  • Clip System:Magnetix 3.0
  • Luggage Socket:Yes
  • Front Light:Tern Valo Direct, 190 lumens
  • Rear Light:Herrmans
  • Fenders:SplashGuard, stainless hardware
  • Rack:Atlas V Rack, integrated 8 point mounting, 27 kg capacity
  • Frame Lock: ABUS, keyed-alike with Bosch battery

Specifications

Specifications

Brand Tern
Motor Manufacturer Bosch
Motor Model Performance Line (Gen 2)
Battery Size 400WH

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