Vektron D8

The Accelerator

The Vektron is a best-in-class electric bike that folds in 10 seconds to go on trains, in cars, and under desks. With an electric drivetrain, 20” wheel bikes are just as fast as 700c. That means riders can enjoy all the benefits of small wheels—compact size, low center of gravity, quick acceleration, maneuverable handling, and plenty of cargo space—with big wheel speed.

The Vektron D8 delivers the uncompromised performance, versatility and style of the Vektron family, in an affordable and convenient package. With hydraulic disc brakes, fenders and a rack, crush your commute rain, snow or shine.

  • Bafang M400 Drive System – 250 watts of responsive and dependable power
  • Hydraulic disc brakes for all-weather stopping power
  • Tern Valo Direct light, with 150 lumens of power, for 24 hour visibility
  • 400 Wh battery for a range of up to 90 km
  • Andros stem, to fit riders from 160 – 195 cm in seconds
  • Hydraulic disc brakes for all-weather stopping power
  • Shimano Claris rear derailleur for quick and responsive gear shifting
Vektron D8: Budget electric folding bike
  • 20" wheels
Electric
Mid-Range

Technology

Product Reviews

The Tern Vektron is suitable for taking children and transporting groceries. Folded, it is as big as a long-distance suitcase and can be taken on the ICE train.

Fairkehr

Tern designed the Vektron from the ground up as an e-bike, allowing it to avoid suffering from the flex or wobble that impacts other designs.

Business Insider

Crank this thing up to level five though, and you'll suddenly feel like Superman. It's incredibly satisfying when the motor kicks in (almost immediately). You can really feel the bike pulling forward; even big hills start to feel like a Sunday saunter in the park.

Engadget

Specifications

General Info
Speeds:
1 x 8
Weight:
22,5 kg (49,6 lb)
Gear Inches:
33" - 95" (2.60 - 7.57 m)
Folding Size:
410 × 860 × 680 mm (16,1 × 33,9 × 26,8 sisällä)
Folding Time:
10 sec
Frame Sizes:
One size
Distance: Seatpost to Handlebar:
62 - 69 cm (24,4 - 27,2 in)
Distance: Saddle to Pedal:
78 - 99 cm (30,7 - 39 in)
Suggested Rider Height:
160 - 195 cm (63 - 76,8 in)
Max Gross Vehicle Weight:
125 kg (275,6 lb)
Max Load Weight:
105 kg (231,5 lb)
Max Rider Weight:
105 kg (231,5 lb)
Frame
Frame:
Tern Vektron, hydroformed aluminum, OCL+ joint, 3 patented technologies
Fork:
Integrated, hi-tensile steel
Cockpit
Handlepost:
Tern Physis 3D (G2), 3D forged, 5 patented technologies, 12°, 320 mm
Stem:
Tern Andros (G2), 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:
SuperOversize, 6061-Al, micro-adjust clamp
Seatpost Clamp:
Oversize, 6061-Al
Brakes
Front Brake:
Shimano, hydraulic disc
Rear Brake:
Shimano, hydraulic disc
Brake Levers:
Shimano, hydraulic disc
Brake Cable & Housing:
Shimano, hydraulic disc
Wheels
Front Hub:
Shimano disc
Rear Hub:
Shimano disc
Spokes & Nipples:
Stainless steel
Rims:
Kinetix Comp, for disc
Tires:
Schwalbe Big Apple, Active Line, 50-406, puncture protection, Reflex
Transmission
Shifter(s):
Shimano, 1 x 8 spd, trigger
Rear Derailleur:
Shimano Claris
Crankset:
Vektron custom, forged AL6061 crankarm
Cassette/Freewheel:
Shimano 11-32T, 8 spd
Bottom Bracket:
Motor integrated
Chain:
8 spd, DHT for eBike, GST corrosion resistant coating
Pedals:
Folding, alloy body
Shifter Cable & Housing:
Anti-compression housing, slick cables
E-System
Motor:
Bafang M400 Drive System, 36 V/250 W, max speed 25 kph (EU); max speed 20 mph (US), max torque 80 Nm
Battery:
Bafang M400 Drive System Battery, 400 Wh, Panasonic cells
Display:
Bafang M400 Drive System Display, 5 mode selectable, walk assist
Range:
40-90 km (25-56 mi)
Bells & Whistles
Bell:
Aluminum
Chainguard:
n/a
Kickstand:
Rear mount, Pletscher design
Clip System:
Magnetix 2.0
Luggage Socket:
Yes
Front Light:
Tern Valo Direct, integrated, 41 lux/150 lumens
Rear Light:
Herrmans H-Trace / H-Trace Mini, for eBike
Fenders:
SplashGuard, stainless hardware
Rack(s):
Optional: Tern Loader Rack; Max load weight: 25 kg (55 lb)

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