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BENEFITS
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Details That Matter
Is This Your Bike? Read On.
Pure Tern
Details That Matter
Is This Your Bike? Read On.
Pure Tern
Tern Vektron Size Informaton – One Size Fits Most

The Vektron has a low-step frame design and resizes in seconds—no tools required—to fit riders between 4’10” – 6’5”, so you can share the bike with anyone in your family.
Description
The Goldilocks of Folding E-Bikes
This fourth-generation folding e-bike delivers what most compact electrics can't—a ride that feels like a real bike. With a rigid aluminum frame that minimizes flex, dialed-in geometry, and premium Bosch Smart System power, the Vektron P5i combines exceptional ride quality with true portability. The patented fold takes under 10 seconds, transforming it into a self-rolling package that fits under desks, stands upright in corners, or tucks into car trunks.
The P5i features a whisper-quiet Gates Carbon Drive belt paired with a Shimano Nexus 5-speed internal hub—no oily chains to worry about when carrying. Bosch's Performance Line motor delivers 75 Nm of torque with pedal-assist up to 20 mph, while the 545Wh PowerPack provides up to 75 miles of range. The adjustable cockpit resizes tool-free to fit riders from 4'10" to 6'5", making it genuinely versatile for the whole household.
Premium Portability, Zero Compromise
- Tern Vektron P5i Gen 4 folding e-bike
- Bosch Performance Line mid-drive motor (75 Nm torque)
- Bosch Smart System with smartphone connectivity
- 545Wh PowerPack battery (up to 75-mile range)
- Gates Carbon Drive belt—quiet, clean, low-maintenance
- Shimano Nexus 5-speed internal gear hub (263% gear range)
- Magura MT4 hydraulic disc brakes with mineral oil
- OCL+ heavy-duty frame joint with 4 igus bearings
- Physis 3D-forged handlepost (single-piece aluminum)
- Atlas V rear rack (27kg capacity, double-rail design)
- 20" balloon tires with puncture protection
- Folded dimensions: 6.5" x 33.5" x 27.2"
- Fits riders: 147-195 cm (4'10" to 6'5")
- Folds in under 10 seconds
- UL 2849 and EN 15194 certified
- 10-year limited warranty on frame, fork, and post
- 7-year parts availability guarantee
- Colors: Cosmic Black, Urban Verdant
- Made with 6061-AL hydroformed aluminum
Side Effects
Bike Facts
Serving size Carries up to 1 person
| Amount per ride | |
|---|---|
| Joy | 100% |
| Bike Details | |
| Frame Material | Aluminum |
| Brakes | Hydraulic Disc |
| Tires | 20" × 2.15" (55-406) |
| Number of Gears | 5 |
| Rider Height | 4’10” 6’5” |
| Weight | 47.2 lbs |
| Ebike Class | Class 1 |
| Motor Power | 65 Nm |
| Battery / Range | 400Wh / 28-70 Miles |
| Suspension | Rigid |
| Max Load (lbs) | 275 |
| Included Accessories | Rack, Lighting System, Frame Lock, Fenders, Rear Mount Kickstand |
| Maintenance Requirements | Low |
| Folded Size | 16.5" × 33.5" × 27.2" in |
Size Information
One Size Fits Most
The Vektron has a low-step frame design and resizes in seconds — no tools required — to fit riders between 4′10″ and 6′5″, so you can share the bike with anyone in your family.

Shipping Policy
Warranty
UPC / Part Numbers
| Option | SKU | UPC |
|---|---|---|
| Urban Verdant | 210000027530 | 810067165884 |