Name: Tern Vektron P5i (Gen 4) Folding E-Bike
Brand: Tern
SKU: 12-9-18
Price: 4099.0 USD
Availability: InStock

$4,099.00

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What makes it a Vektron P5i?

Powerful Bosch BES2 Performance motor provides up to 65 Nm of torque and 300% support
Intuitive, easy-to-read Intuvia display keeps you informed and in control on the road
PowerPack 400 battery lets you ride up to 112 km (70 mi) on a single charge
Shimano Nexus 5 internally geared hub with 263% gear range and twist shifter offers smooth, effortless shifting across changing terrain
Silent, grease-free, and low-maintenance Gates Belt Drive
ABUS frame lock, conveniently keyed alike with the battery

Vektron highlights

Best-in-class Bosch drivetrain ensures efficient, comfortable, and natural-feeling pedal assist
Stiff frame & dialed-in geometry guarantees a ride that outshines many full-sized bikes
Folds down compact in 10 seconds to fit in cars, trains, and closets
Stands upright and rolls when folded—easy to move, easy to store
Adjustable cockpit resizes in seconds to comfortably fit riders 147 - 195 cm (4’10” - 6’5”)
Hydraulic disc brakes for all-weather stopping power
Atlas V Rear Rack with 27 kg load capacity, compatible with KLICKfix, Racktime SNAPIT 2.0, and Ortlieb Quick-Lock 2.1 & 2.2 systems
UL 2849-certified Bosch battery/motor system & third-party tested in compliance with EN 15194, meeting strict eBike safety standards

Component Specifications

Sourced from Tern's published specifications for the Vektron P5i (Gen 4). Tern builds the Vektron in one universal frame size.

Frame & Build

Frame	Tern Vektron, 6061-AL hydroformed aluminum, OCL+ joint (3 patented technologies)
Fork	Tern Tarsus, 6061-AL, hydroformed
Frame Lock	ABUS, keyed alike with the battery
Frame Size	One size, fits riders 147–195 cm (4′10″–6′5″)
Weight	23.9 kg (52.7 lb)
Max Gross Vehicle Weight	125 kg (275.6 lb)
Max Rider Weight	105 kg (231.5 lb)

Motor & Battery

Motor	Bosch BES2 Performance — 65 Nm torque, 300% support, max assisted speed 20 mph (28 km/h)
Battery	Bosch PowerPack, 400 Wh
Range	45–112 km (28–70 mi)
Display	Bosch Intuvia
Charger	100–120V, 4A

Drivetrain

Shifter	Shimano Nexus, 5-speed twist shifter
Hub	Shimano Nexus 5, internally geared (263% gear range)
Belt Drive	Gates Carbon Drive CDC belt
Crankset	Tern custom, Gates CDX CNC-machined beltring
Cog	Gates CDX, precision CNC-machined
Pedals	MKS EZY
Gear Range	34″ – 90″ (2.75 – 7.22 m), 1 x 5 speeds

Brakes

Front Brake	Magura MT4, hydraulic disc
Rear Brake	Magura MT4, hydraulic disc

Wheels & Tires

Wheel Size	20-inch (406 mm)
Rims	Kinetix Comp, for disc
Tires	Schwalbe Big Apple, Performance Line, 55-406, puncture protection, Reflex

Cockpit

Handlepost	Tern Physis 3D, 3D forged, 12°, 350 mm
Stem	Tern Andros, adjustable, forged construction
Handlebar	Tern Sweep, 6061-AL, Andros adapted
Grips	Ergon
Saddle	Tern Upright by Velo
Seatpost	Tern Telescope, 34.9/30.9 mm

Folded Dimensions

Folded Size (L x W x H)	42 x 85 x 69 cm (16.5 x 33.5 x 27.2 in)
Folding Time	10 seconds

Geometry

The Vektron P5i is built in a single universal frame size with an adjustable cockpit rather than multiple frame sizes. Tern does not publish a stack/reach/tube-angle geometry chart for this model — folded dimensions and rider height range above are the published fit data.

We accept all returns of new, unused, unopened, goods within 7 days of your purchase. If you are not satisfied with an item, simply ship it back to us within 7 days for a full refund. Funds will be returned to the payment method used at checkout. Sorry, No returns on bicycle purchases / frame sets or items less than $25.

Send returns to:
MECHANIC Bicycle Pro Shop:
ATTN: Returns, (Your Order #)
1327 Darby Road
Havertown, Pennsylvania, 19083

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Tern Vektron P5i (Gen 4) Folding E-Bike