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Ride it, fold it, go further.
Ride it, fold it, go further.

Tern Vektron Q9 9spd 20in Folding eBike in Blue

£3,399.00 £3,500.00 3% off
in Customer Rewards when you buy this item today

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Tern Vektron Q9 9spd 20in Folding eBike in Blue



Ride it, fold it, go further.

The Vektron is a best-in-class electric bike that folds in 10 seconds to go on trains, in cars, and under desks. Shorten distances and flatten the hills on your commute, or put a couple of Vektrons in the trunk of your car on your next trip, so you can explore further.

Best in class.

In test after test, the Vektron is called the best folding ebike on the market. With an updated frame, upgraded Bosch motors, and a wide ecosystem of accessories to help you carry your stuff, the Vektron will easily turn a lot of your car trips into bike trips.

Ready to roll.

Once you fold your Vektron, it’s easy to roll it around. The new frame design also lets you keep the bike in vertical position when folded, so stopping and going is easier than ever.

Rides better.

There are other folding electric bikes but none ride better. The Vektron is stiff and stable for a truly solid ride – even when fully loaded. Take a test ride and feel the difference.

Takes you further.

Take your Vektron on a train or bus to cover those extra-long commutes, or to complete the first and last leg of your commute faster. Ride to the station, hop on, hop off, and keep riding.

One size fits most.

The Vektron has a low-step frame design and resizes in seconds—no tools required—to fit riders between 145 and 195 cm (4’10” – 6’5”), so you can share the bike with anyone in your family.

Kiddie compatible.

School runs have never been more fun! The frame-integrated Atlas V Rack™ is designed to fit a Thule Yepp Maxi or a Dash® RM seat—no adapters needed.


  • Upgraded to the Bosch Active Line Plus electric drivetrain for 270% more assistance and 50 Nm of torque
  • Hydraulic disc brakes for all-weather stopping power
  • Updated frame with a reclining battery for a lower center of gravity and better ride
  • Frame passed strict European safety standards for pedal-assist e-bikes, having been certified as EN15194-compliant by EFBE Prüftechnik
  • Integrated Atlas V Rack™ works seamlessly with Thule Yepp Maxi and Dash® RM child seats—no adapters needed
  • Resizes in seconds to fit riders 147 – 195 cm (4’10” – 6’5”) so a single bike can be shared by the family
Technical Information
  • Speeds:
    1 x 9
  • Weight:
    21.9 kg (48.3 lb)
  • Gear Inches:
    33" - 97" (2.65 - 7.72 m)
  • Folding Size:
    41 × 86 × 68 cm (16.1 × 33.9 × 26.8 in)
  • Folding Time:
    10 sec
  • Frame Sizes:
    One size
  • 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:
    Tern Vektron, hydroformed 7005-AL, OCL+ joint, 3 patented technologies
  • Fork:
    Tern Tarsus, 6061-Al, hydroformed
  • Handlepost:
    Tern Physis 3D, 3D forged, 5 patented technologies, 12°, 320 mm
  • Stem:
    Tern Andros, adjustable, forged construction, patented technology
  • Headset:
    Tern Flux, cartridge bearings, Physis integrated
  • Handlebar:
    Flat bar, 6061-AL, Tern Andros adapted
  • Grips/Bar Tape:
    Velo ergonomic, lock-on
  • Saddle:
    Tern Porter, patented GripPad design
  • Seatpost:
    Tern Telescope, 34.9/30.9 mm, 2014-AL
  • Seatpost Clamp:
    Tern Collar, 6061-AL, 2pc
  • Front Brake:
    Shimano, hydraulic disc
  • Rear Brake:
    Shimano, hydraulic disc
  • Brake Levers:
    Shimano, hydraulic disc
  • Brake Cable & Housing:
    Shimano, hydraulic disc
  • Front Hub:
    Shimano disc
  • Rear Hub:
    Shimano disc
  • Spokes And Nipples:
    Stainless steel
  • Rims:
    Kinetix Comp, for disc
  • Tyres:
    Schwalbe Big Apple, 55-406, puncture protection, Reflex
  • Shifter(s):
    Shimano Alivio, 1 x 9 spd, trigger
  • Rear Derailleur:
    Shimano Alivio Shadow
  • Crankset:
    Vektron custom, forged 6061-AL crankarm
  • Cassette/Freewheel:
    Shimano 11-32T, 9 spd
  • Bottom Bracket:
    Motor integrated
  • Chain:
    9 spd, DHT for eBike, GST corrosion resistant coating
  • Pedals:
  • Shifter Cable & Housing:
    Jagwire LEX-SL, slick treatment, alloy ferrules
  • Motor:
    Bosch Active Line Plus, 270% Assist, 50 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: 55 -110 km (35-70 mi)
  • Charger:
    220V, 4A (EU); 100-240V, 4A (US)
  • Bell:
  • Chainguard:
    SKS Chainblade
  • Kickstand:
    URSUS, rear mount
  • Clip System:
    Magnetix 3.0
  • Luggage Socket:
  • Front Light:
    Tern Valo Direct, 190 lumens
  • Rear Light:
    Herrmans H-Trace, for eBike
  • Fenders:
    SplashGuard, stainless hardware
  • Rack(s):
    Atlas V Rack™, integrated 8 point mounting; Max load weight: 27 kg (60 lb)
Sizing Information
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