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2026 Tern

Vektron P7i

A 20″ aluminum frame folding e-bike with modest components and shimano hydraulic disc brakes.
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Manufacturer Price

£3,250($4,359)
Weight49.6 lbs  
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels20″ Aluminum
DrivetrainInternally Geared Hub
GroupsetNexus
MotorBosch 600W 65Nm mid-drive
BatteryBosch 400Wh
BrakesShimano Hydraulic Disc
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Reviews
ebiketips
Tern Vektron P5i | electric bike reviews, buying advice and news - ebiketips

May 2026 · Dave Atkinson

The Tern Vektron P5i is a high quality folding e-bike that can carry a lot of stuff, and folds simply and reliably into a small enough package that it’ll easily fit on a train luggage rack or into the boot of a car. It rides well, and fits a good range of rider sizes from ... Read more

Highs
  • High quality build

  • Quiet, efficient motor and drivetrain

  • Easy and fun to ride

  • Simple fold

Lows
  • Fairly heavy

  • Standard-spec 400Wh battery is a bit small

Read Review

Electric Bike Report
Tern Vektron P5i Review | Premium, Purpose-Driven & Portable

Feb 2026 · John S. Bozick

This high-end folding e-bike offers comfort, responsive pedal assist, and a compact, user-friendly design. In my experience, many folding e-bikes are directed at consumers who may be new to riding or uncertain of how often they plan to use their purchase. As such, I’ve noticed that many manufacturers of folding e-bikes make highly affordable, entry-level

Highs
  • The Vektron P5i rides just like a “regular” bike, thanks to its smooth, responsive, and capable Bosch Performance Line mid-drive motor.

  • Tern designed the bike for awesome portability, with a frame that folds small, can stand upright, and can roll easily when folded.

  • The P5i model is quiet, clean, and remarkably low-maintenance, with a Gates Carbon belt and Shimano Nexus internal gear hub.

  • It has quick steering and nimble handling due to its relatively low weight and 20” wheels.

  • The single frame size fits riders from 4’10” to 6’5”, thanks to its dual-telescoping seatpost and adjustable Andros stem.

  • It’s advanced, yet easy to use. The Bosch system feels precise without adding the complexity of too many settings or an app.

  • The Vektron is equipped from front to back with premium components, ensuring reliability, great performance, and serviceability.

  • Tern offers up to a 10-year warranty on its frames, forks, and handleposts—be sure to sign up for Tern Care to maximize your coverage!

  • It’s compatible with a wide range of accessories, including cargo baskets and luggage, storage and transport bags, etc.

Lows
  • We liked the ability to quickly switch off the headlight, but we hoped to see functioning brake lights on such an urban-friendly e-bike.

  • Vektron models in the US aren’t compatible with Bosch’s highly useful Flow app. We’d love to see that functionality in the future.

Read Review

Specs
Build
Frame

Tern Vektron, hydroformed 7005-AL, OCL+ joint, 3 patented technologies

ColorSatin Gunmetal

Fork

Tern Tarsus, 6061-Al, hydroformed

Bottom Bracket

Motor integrated

Headset

Tern Flux, cartridge bearings, Physis integrated

Stem

Tern Andros, adjustable, forged construction, patented technology

Handlebar

Flat bar, 6061-AL, Tern Andros adapted

Saddle

Tern Porter+ by Velo, patented GripPad design, PrimeGel padding

Seatpost

Tern Telescope, 34.9/30.9 mm, 2014-AL

TypeRigid

Pedals

MKS EZY

Groupset
Crank

Vektron custom, forged 6061-AL crankarm

Shifters

Shimano Nexus, 7 spd

Cassette

16T

Chain

DHT for eBike, GST corrosion resistant coating

Chain Guide

SKS Chainblade

Brakes

Front: Shimano, hydraulic disc, Rear: Shimano, hydraulic disc

TypeShimano Hydraulic Disc

Brake Levers

Shimano, hydraulic disc

Wheels
Rims

Kinetix Comp, for disc

Front Hub

Shimano disc

Rear Hub

Shimano Nexus 7, disc

Tires

Schwalbe Big Apple, 55-406, puncture protection, Reflex

Electric Components
Motor

Bosch Performance Line, 300% Assist, 65 Nm Torque, max speed 25 kph (EU); max speed 20 mph (US)

Battery

Bosch PowerPack 400 Wh

Display

Bosch Purion, 4 mode selectable, walk assist

Charger

220V, 4A (EU); 100-240V, 4A (US)

Accessories
Lights

Front: Tern Valo Direct, 190 lumens, Rear: Herrmans H-Trace, for eBike

Fenders

SplashGuard, stainless hardware

Racks

Yes

Bell

Aluminum

Rider Notes
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First added March 28

Last updated April 4