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Tern Electric: Vektron Q9 - 2019



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Product Description

Tern Electric: Vektron Q9 - 2019

Conquer hills and headwind—without breaking a sweat

All around the world, the way we get from A to B is changing. With the world on the verge of auto-mobility, driverless cars, ride-sharing, and the mainstream arrival of electric vehicles, it’s an exciting moment for transportation. To help drive this force of change, Tern developed a small collection of electric bikes that take hills, headwinds, traffic, and bike thieves out of commuting.

The Vektron Q9 is equipped with hydraulic disc brakes, a sturdy rear rack, Valo Direct light, and fenders—so it is ideal for all-season commuting in the city.

  • German-engineered Bosch Active Line electric drivetrain—the industry leader in electric bike technology
  • Hydraulic disc brakes for all-weather stopping power
  • New frame design, with a reclining battery for a lower center of gravity and better ride
  • Integrated Atlas Rack works seamlessly with Thule Yepp Maxi and Nexxt Maxi 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




General Info


Wheel Size:

20" wheels


1 x 9


21.9 kg (48.2 lb)

Folding Size:

41 x 86 x 68 cm (16.1" x 33.9" x 26.8")

Folding Time:

10 sec

Frame Sizes:

One size

Gear Inches:

33" - 97" (2.65 - 7.72 m)

Distance: Seatpost to Handlebar:

Min: 620 mm (24.4") Max: 690 mm (27.2")

Distance: Saddle to Pedal:

Min: 670 mm (26.4") Max: 1100 mm (43.3")

Suggested Rider Height:

147 - 195 cm (4'10" - 6'5")

Max Load Weight:

105 kg (230 lb)



Vektron G2 Frame


Tern Tarsus, 6061-Al, hydroformed



Tern Physis 3D, 3D forged, 5 patented technologies


Tern Andros, adjustable, forged construction, patented technology


Tern Flux, cartridge bearings, Physis integrated


Flat bar, 6061-AL, Tern Andros adapted

Grips/Bar Tape:

Velo ergonomic, lock-on


Tern Porter, patented GripPad design


Tern Telescope, 34.9 mm, Lite 2014-AL

Seatpost Clamp:

Oversize, 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:



Kinetix Comp, for disc


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



Shimano Alivio, 1 x 9 spd, trigger

Rear Derailleur:

Shimano Alivio Shadow


Vektron custom, forged 6061-AL crankarm


Shimano 11-32T, 9 spd

Bottom Bracket:

Motor integrated


9 spd, DHT for eBike, GST corrosion resistant coating



Shifter Cable & Housing:

Jagwire LEX-SL, slick treatment, alloy ferrules



Bosch Active Line, 36 V/250 W, max speed 20 mph (US/Canada), max torque 40 Nm


Bosch PowerPack 400 Wh


Bosch Purion, 4 mode selectable, walk assist


400 Wh: 50-130 km (30-80 mi)

Bells & Whistles




SKS Chainblade


URSUS MOOI, rear mount

Clip System:

Magnetix 2.0

Luggage Socket: 


Front Light:

Tern Valo Direct, integrated, 41 lux/150 lumens

Rear Light:

Herrmans H-Trace, for eBike


SplashGuard, stainless hardware


Atlas Rack, integrated 8 point mounting

*Note: These are Tern's standard model specifications. The bike's weight and folded dimension may not include racks and fenders. The specifications for your country may differ slightly. Tern does their best to ensure that the specifications listed here accurately reflect the exact parts found on their production bikes. However, component changes do occur for various reasons and there may be brief delays on site updates. Tern reserves the right to make component changes without prior notification, which may cause discrepancies with the information listed on the web.



Updated Vektron Frame


With a re-worked frame and frame geometry, the updated Vektron is now even better. The cockpit is longer for improved comfort for taller riders. The frame has been designed with additional forged and machined elements for additional strength without extra weight. The battery now reclines backwards, keeping the center of gravity as low as possible for superior handling. And the new design allows the Vektron to stand up vertically when folded, making it even easier to roll around.

Bosch Active Line


Adapted from Bosch’s German-engineered automotive applications, the Active Drive Line drive unit can take you up to 25 km per hour (20 mph in the U.S.) and operates dependably—day in and day out. The new generation of the Active Line is also 28% lighter and 25% smaller than the previous one, maintaining its excellent performance and low-levels of vibration while delivering an even quieter ride with less pedal resistance.

Bosch PowerPack Battery

Feather-light powerhouse

This impressive high-energy, high-power cell clips on and off your bike. The best-in-class design charges fast—from zero—in only 2.5 to 3.5 hours, and lets you ride longer and further between charges. You’ll be impressed by its long lifespan, light weight, and ease of charging. PowerPacks are available in 300/400/500 Wh variants, so you can forget about range anxiety..

Telescopic Seatpost™


This seatpost is perfect for tall riders or anyone who likes a compact fold. It extends 90 mm longer than our stock seatpost, but thanks to its unique design, it’s 120 mm shorter when retracted. It features a dual-bolt head design for precise saddle adjustment, and an inner post diameter of 27.2 mm, so you can customize it with other posts.

Shimano Alivio Shadow Derailleur


For most cities, the resilient 9-speed Alivio Shadow derailleur is all you really need—with the added benefit of keeping everything tucked away for extra protection, which comes in handy when you need to transport your folded bike.

Magnetix™ 2.0

Keep it together

The Magnetix 2.0 uses powerful magnets to keep your bike folded for situations like carrying your bike up and down stairs. With a pull force 10-15 Kgf, the Magnetix 2.0 will keep your bike folded even when being jostled and moved about.

Luggage Socket™

Carry more stuff

Fix the Tern Luggage Truss to the Luggage Socket and you can plug in your choice of front luggage: rack, basket, or bag. If it’s KlickFix compatible, it’ll work.



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Santa Monica: (424) 744-8148

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