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Tern Vektron Q9 Folding eBike

£3,300.00

Price includes 20% VAT.

A genuinely full-power folding eBike with a Bosch 250W mid-drive that folds in seconds for trains, boots and flats, on stable 20in wheels.

About this item

  • Throttle: None
  • Motor Power: 250W (continuous)
  • Battery Capacity: 11ah
  • Max Range: 40 miles
  • Wheel Size: 20"
  • Motor: Bosch Active Line Plus, 250W mid-drive, 50 Nm torque, 270% assist
  • Battery: Bosch PowerPack 400 Wh (charges in 2.5–3.5 hrs)

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The Tern Vektron Q9 is a compact 20-inch folding e-bike built for commuters who mix cycling with trains, cars and tight storage. A Bosch Active Line Plus 250W mid-drive motor delivers smooth, near-silent assistance up to 50 Nm, drawing on a 400 Wh Bosch PowerPack for a real-world range of 55 to 110 km. Because assistance cuts out at 25 km/h (15.5 mph) and you keep pedalling, it is a fully UK road-legal EAPC, requiring no licence, tax or insurance.

Tern’s reinforced OCL+ frame folds in around ten seconds and stands upright for easy rolling, while the Andros stem and resize mechanism let riders from 147 to 195 cm share one bike. A Shimano Alivio 1×9 drivetrain, hydraulic disc brakes and cushioned Schwalbe Big Apple tyres handle hills and city surfaces with confidence.

  • Bosch mid-drive with Purion display and walk assist
  • Genuine 10-second fold for trains, boots and under desks
  • Integrated Atlas rack carries up to 27 kg of cargo
  • One size fits a wide range of riders, 21.9 kg total weight
Brand

Throttle

None

Motor Power

250W (continuous)

Battery Capacity

11ah

Max Range

40 miles

Wheel Size

20"

Colour

Midnight Blue, Silver

Frame Size

One Size

Motor

Bosch Active Line Plus, 250W mid-drive, 50 Nm torque, 270% assist

Battery

Bosch PowerPack 400 Wh (charges in 2.5–3.5 hrs)

Drivetrain

Shimano Alivio 1×9-speed (11–32T)

Brakes

Shimano hydraulic disc, front and rear

Range

55–110 km (35–70 miles) depending on assist mode

Assist speed / road legality

Cuts out at 25 km/h (15.5 mph) — UK road-legal EAPC, no licence, tax or insurance needed

Wheels / tyres

20-inch (406) with Schwalbe Big Apple 55-406

Weight

21.9 kg (48.3 lb)

Rider fit

One adjustable size, fits 147–195 cm (4'10"–6'5"); max rider 105 kg

Fold & carry

Folds in ~10 seconds to 42 x 86 x 68.5 cm; Atlas rack rated to 27 kg

UK road-legal (EAPC)

This electric bike meets UK Electrically Assisted Pedal Cycle (EAPC) requirements: a 250W motor providing pedal-assistance that cuts off at 15.5 mph (25 km/h). It can be ridden on UK roads, cycle paths and bridleways with no licence, registration, road tax or insurance required, by riders aged 14 or over.

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