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Black Tern folding electric bike on a white background
Tern Vektron S10

Tern Vektron S10
£3,900.00

Main specification

  • Derailleur Shimano Deore Shadow+
  • Gears 10
  • Drivetrain type Chain
  • Brakes Magura Magura MT4, Hydraulic disc brake
  • Fork/Shock model Tern Tarsus, 6061-Al, hydroformed
  • Wheel size 20"
  • Weight (kg) 22.1

Drive system

  • Drive unit Bosch Performance Line (BDU365)
  • Battery Bosch PowerPack 400
  • Battery capacity (Wh) 400
  • Display Purion (BES2)
Frame Size

The Tern Vektron folding electric bike combines Bosch Performance power with compact convenience. Featuring 65 Nm of torque, a lower centre of gravity for smoother rides, and EN15194-certified safety, it’s built for everyday commuting and family use. The Atlas V Rack™ supports child seats with no adapters, while its quick-resize frame fits riders from 147–195 cm. Perfect for multi-modal travel, the Vektron folds easily to take on buses, subways, or taxis.
Foldable bicycle on a ledge with a blurred building in the background

Ride it, Fold it, Go Further

The Vektron is a top-tier folding e-bike that packs down in 10 seconds, allowing it to fit on trains, in cars, or under desks. Tackle hills, shorten commutes, or take two along on your next trip to ride further.
Man riding a cargo bike with plants in an urban setting

Best in Class

The Vektron is often rated as the best folding e-bike, featuring an upgraded Bosch motor, an updated frame, and smart accessories to carry your gear—making it easy to swap car trips for bike trips.
Woman with a folding bicycle and yellow tram

Ready to Roll

Fold the Vektron and simply roll it along. Its new frame design lets it stand upright when folded, making stops and starts effortless.
Woman riding a electric bike in an urban setting

Rides Better

Other folding e-bikes exist, but none ride like the Vektron. Stiff, stable, and solid—even when loaded. Take a test ride and feel the difference.
Woman in a loft office with a folding bike next to a desk.

Takes You Further

Take the Vektron on trains or buses to breeze through long commutes. Ride to the station, hop on, hop off, and keep going with ease.
Man with child in a bike seat in a park

Kiddie Compatible

School runs just got easier. The Atlas V Rack™ fits a Thule Yepp Maxi or Dash® RM child seat—no adapters required.

Detailed information

Category General Info
Speeds 1 x 10
Weight 22.1 kg (48.7 lb)
Gear Inches 30" - 97" (2.36 - 7.72 m)
Frame Sizes One size
Folding Size 40 × 85.5 × 67.5 cm (15.7 × 33.7 × 26.6 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)
Category Frame
Frame Tern Vektron, hydroformed 7005-AL, OCL+ joint, 3 patented technologies
Fork Tern Tarsus, 6061-AL, hydroformed
Category Cockpit
Handlepost Tern Physis 3D, 3D forged, 5 patented technologies
Stem Tern Andros, adjustable, forged construction, patented technology
Headset Flux Pro, angular contact bearings, Physis integrated
Handlebar Kinetix Comp, double-butted 6061-AL, Tern Andros adapted
Grips/Bar Tape Ergon
Saddle Tern Porter+, patented GripPad design, PrimeGel padding
Seatpost Tern Telescope, 34.9/30.9 mm, 2014-AL
Seatpost Clamp Tern Collar, 6061-AL, 2pc
Category Brakes
Front Brake Magura MT4, hydraulic disc
Rear Brake Magura MT4, hydraulic disc
Brake Levers Magura, hydraulic disc
Brake Cable & Housing Magura, hydraulic disc
Category Wheels
Front Hub Novatec, sealed cartridge bearing, disc
Rear Hub Novatec, sealed cartridge bearing, disc
Spokes & Nipples Stainless steel, double-butted
Rims Kinetix Comp, for disc
Tires Schwalbe Big Apple, Performance Line, 55-406, puncture protection, Reflex
Category Transmission
Shifter(S) Shimano Deore, 1 x 10 spd
Rear Derailleur Shimano Deore Shadow+
Crankset Vektron custom, forged 6061-AL crankarm
Cassette/Freewheel Shimano 11-36T, 10 spd
Bottom Bracket Motor integrated
Chain 10 spd, DHT for eBike, GST corrosion resistant coating
Pedals MKS EZY
Shifter Cable & Housing Jagwire LEX-SL, slick treatment, alloy ferrules
Category E-System
Motor Bosch Performance, 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
Range 400 Wh: 53 - 106 km (34 - 68 m