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Vektron S10 Folding Bosch eBike

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All around the world, the way we get from A to B is changing. With the world on the cusp of auto-mobility, ride sharing, and the mainstream arrival of electric vehicles, it’s an exciting moment for transportation. To help drive this force of change, we developed the world’s most compact Bosch-driven electric bike. The Tern Vektron takes everything great about folding bikes—multi-modal commuting, portability for travel and storage—and accelerates it.


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Description

Details

All around the world, the way we get from A to B is changing. With the world on the cusp of auto-mobility, ride sharing, and the mainstream arrival of electric vehicles, it’s an exciting moment for transportation. To help drive this force of change, we developed the world’s most compact Bosch-driven electric bike. The Tern Vektron (originally called the Tern Elektron) takes everything great about folding bikes—multi-modal commuting, portability for travel and storage—and accelerates it.

  • Fits easily on buses and subways for electric multi-modal commuting
  • Resizes in seconds to fit riders 147 – 195 cm (4’10” – 6’5”) so a single bike can be shared by the family
  • Stores under a desk for convenient theft protection; no need to bring a heavy lock
  • Stash a pair in the trunk of a car for weekend getaways
  • German-engineered Bosch Active electric drivetrain—the industry leader in electric bike technology
  • T-Tuned™ geometry for a full-sized ride and comfort
  • Valo™ lighting system, with 150 lumens of power, for 24-hour visibility
  • Rear Cargo Rack™ works seamlessly with Yepp child seats—Maxi Easyfit or Junior Easyfit—for carrying kids

Vektron Video Review:

Specifications:

SPECIFICATIONS

GENERAL INFO
COLOR: 
WHEEL SIZE: 20" wheels
SPEEDS: 1 x 10
WEIGHT: 22.2 kg (48.9 lb)
FOLDING SIZE: 41 x 86 x 65 cm (16.1" x 33.9" x 25.6")
FOLDING TIME: 10 sec
FRAME SIZES: One size
GEAR INCHES: 30" - 93" (2.40 - 7.43 m)
DISTANCE: SEATPOST TO HANDLEBAR: Min. 630 mm (24.8") Max: 690 mm (27.2")
DISTANCE: SADDLE TO PEDAL: Min. 740 mm (29.1") Max: 1140 mm (44.9")
SUGGESTED RIDER HEIGHT: 147 - 195 cm (4'10" - 6'5")
MAX LOAD WEIGHT: 105 kg (230 lb)
FRAME: Quadric Dropouts
FORK: Tern Tarsus, 6061-Al, hydroformed
HANDLEPOST: Tern Physis 3D, 3D forged, 5 patented technologies
STEM: Tern Andros, adjustable, forged construction, patented technology
HEADSET: Flux Pro, angular contact bearings, Physis integrated
HANDLEBAR: Kinetix Comp, double-butted 6061-Al
GRIPS/BAR TAPE: Ergon GP10
SADDLE: Tern Porter+, patented GripPad design, PrimeGel padding
SEATPOST: Tern Telescopic, 2014-Al, 2 pc.
SEATPOST CLAMP: Syntace OverLock
FRONT BRAKE: Shimano Deore, hydraulic disc
REAR BRAKE: Shimano Deore, hydraulic disc
BRAKE LEVERS: Shimano Deore, hydraulic disc
BRAKE CABLE & HOUSING: Shimano, hydraulic
FRONT HUB: Shimano disc
REAR HUB: Shimano disc
SPOKES AND NIPPLES: Stainless, double-butted
RIMS: Kinetix Comp, for disc
TIRES: Schwalbe Big Apple, 55-406, puncture protection, Reflex
SHIFTER(S): Shimano Deore, 1x10 spd
REAR DERAILLEUR: Shimano Deore Shadow
CRANKSET: FSA for Bosch
CASSETTE/FREEWHEEL: Shimano 11-34T, 10 spd
BOTTOM BRACKET: Bosch
CHAIN: 10 spd, DHT for eBike, GST corrosion resistant coating
PEDALS: LiteForm QR, alloy body, QR right/standard left
MOTOR: Bosch Active, 36 V/250 W, max speed 32 km/h
BATTERY:Bosch 400 Wh
DISPLAY: Bosch Purion, 4 mode selectable, walk assist
BELL: Pitch, brass
CHAINGUARD: SKS Chainblade
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, for eBike
FENDERS: SplashGuard, stainless hardware
RACK(S): Tern Cargo Rack
ACCESSORY: Pedal Holder
 

Technology:

OCL+™ Frame Joint

ROBUST FOLDING TECHNOLOGY

A heavy-duty update to our iconic OCL frame hinge, the OCL+ is built to exceed ISO 4210 and EN 15194 testing requirements. Leveraging the hinge design of the long-tail Tern Cargo Node, the OCL+ features a single-shaft design, advanced welding techniques, and robust gussets, so it stays stiff and strong during even the fastest commutes.
 
Stronger by Design
Making the hinge taller and moving the pivoting surfaces outward from the center axis more than doubles overall strength and stiffness. It’s a difference you’ll feel from your very first ride.
Smooth Operation
The patented design puts four igus® bearings between the aluminum and stainless steel moving parts so the folding action is always smooth and friction-free.
Interlocking Joint
The front and rear joint surfaces lock together to eliminate torsional movement.
 
Easy to Use
Large rounded surfaces on the lever and joint bodies are easy on your hands and allow good leverage for easy operation.
Doubly Safe
Close the lever and the AutoLok™ automatically locks in place for extra, easy security.
Floating Point Technology
Patented technology allows the lever to fold flat and brace against the joint for protection in transit.
 
Serviceable
Good things are built to last and that’s why the OCL+ Joint is designed to be dealer serviceable. We keep every part in stock and if your bearings ever wear out, your dealer can replace them in a few minutes.
Precision-Machined
A machining tolerance of only 50 microns ensures a tight fit and eliminates looseness and rattling.
Stainless Steel Hardware
Cold-worked stainless delivers the durability and reliability needed for daily riding in all weather conditions.
 
 
 
 
 

N-Fold™ Technology

THE FASTER FOLD

With N-Fold Technology, Tern bikes fold small and fast—in three easy steps. It’s simple enough for anybody to master. And with the handlepost folded to the outside of the package, Tern bikes can also roll when folded for easy transport.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

DoubleTruss™ Technology

STIFFER BY DESIGN

The rear half of Tern frames use a patented 3D structure we call DoubleTruss to build in extra stiffness. It helps resist torsional forces so our bikes flex less. That means increased stiffness and much better power transfer from the pedals to the rear wheel. The proof’s in the ride.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Quadric™ Dropouts

THE USER-CENTERED DROPOUT

Dropouts are often overlooked, but a good dropout goes a long way. Our Quadric dropout is built taller, so your disc brakes are protected inside the frame. The design makes the eyelets for mudguards, racks, and our clip system more user-friendly and accessible than ever before. We even included a mount for a sturdy rear kickstand.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Tarsus™ Fork

HYDROFORM MEETS FUNCTION

Utilizing a single hydroformed tube mated to a precision-machined steerer, the Tarsus delivers superior strength in a shape that matches the sophisticated lines of the Verge and Eclipse frames.
 
Hydroformed Tubing
The process of hydroforming aligns the grain structure and strengthens the aluminum material. It also minimizes welding in the most highly stressed area of the fork.
Internal Wire Routing
If you decide to equip your Tarsus with a dynamo hub, it’s ready for internal cable routing, keeping the profile of your bike clean.
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Physis™ 3D Handlepost

THE NEW BENCHMARK

Five patented technologies and unique manufacturing technology add up to the strongest, stiffest folding handlepost available. The Physis uses a special manufacturing process called 3D forging, which forms the post from a single piece of aluminum, eliminating all welds.
 
No Flex
To eliminate flex, the Physis uses a massive joint knuckle and a post that gradually tapers from thick at the base to thin. Moreover, it has 150% more clamping height between the fork steerer and the handlepost than common designs.
Flux Technology
The base of the Physis is machined so it functions as the upper race of the headset. This patented direct integration contributes to the incredible stiffness of the design.
Interlocking Halves
Joint surfaces lock together to improve torsional stiffness. We've fine-tuned the shape to virtually eliminate squeaks.
 
Redundant Double Bolts
Two bolts clamp the Physis to the fork steerer for improved safety.
igus® Bearings
The patented design puts sliding bearings between the moving parts so the folding action is always smooth and friction-free.
Large, Smooth Lever
Large rounded surfaces are easy on your hands and provide good leverage for easy operation.
 
AutoLok Technology
Close the lever and it automatically locks in place, for extra, easy security—using an aluminum pin.
Floating Point Technology
Patented technology allows the lever to fold flat and brace against the joint for protection in transit.
SpringLock Technology
Patented SpringLock technology holds the adjustment rod firmly in place so the locking lever is always properly tensioned and can never vibrate loose.
 
Serviceable
Good things are built to last and that’s why the Physis is designed to be fully dealer serviceable. We keep every part in stock and replacing the bearings can be done in minutes.
TriSeal Design
Three rubber seals keep weather out and the headset bearings functioning smoothly.
Precision-Machined
A machining tolerance of only 50 microns ensures a tight fit and eliminates looseness and rattling.
 

Andros™ Stem

ADJUST TO FIT

The Andros is our patented adjustable stem that lets you set your handlebars where you want—no tools, no fuss. In just seconds, you can set your riding position to long and low in a tough headwind, or upright and comfy for riding around town. You decide how you want to ride and the Andros makes your bike fit.
 
Quick Release
Patented quick-release, tool-free design is easy to operate.
TwinStem Design
The Andros design uses two stems, spaced widely apart for excellent torsional stiffness.
Fits the Family
Accommodates riders of all sizes so one bike can be shared by multiple riders.
 
Forged Construction
The patented design is FEA optimized and fully forged for maximum strength with minimum weight.
Built to Last
Stainless hardware and brass bushings for long-term durability.
 
 
 
 
 
 
 
 
 
 

Porter+™ Saddle

CARRY YOUR BIKE COMFORTABLY

We reengineered the underside of the age-old bike saddle into a comfortable grip and shoulder pad. Up top, the dual-density construction and gel cushioning will keep you comfortable on the road, and the impeccably finished vacuum construction makes the saddle waterproof and easy-to-clean. Down below, the GripPad™ on the underside of the saddle lets you grip the saddle nose with comfortable confidence when your rolling your folded bike.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Telescopic Seatpost™

LONGER SEATPOST. SMALLER FOLD.

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 Deore Hydraulic Disc Brakes

STOP ON DEMAND

Leveraging technology that’s been working successfully on motorcycles for decades, these brakes will bring you to a confident stop—even in rain, snow, or mud. All it takes is the gentle pull of just two fingers. The caliper design is both ridged and durable, and the non-corrosive mineral oil brake fluid is gentler on the environment than most hydraulic brake fluids.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Schwalbe Big Apple Tires

CUSH FOR YOUR TUSH

Big Apples are special because they’re fast rolling AND super comfy. Sounds hard to believe but you’ll just have to take them for a ride to become a believer.
 
Faster Rolling
Wide tires roll better than skinny tires at the same tire pressure. Yes, it’s true! Big Apples are extra special because they use a light and flexible tread and sidewall for extra low rolling resistance.
Wide for Comfort
Super-wide Big Apple tires are like 2" of super-efficient suspension. They roll smoothly over drainage grates, train tracks and potholes with little complaint.
Puncture Protection
Big Apples feature a Kevlar belt to protect from punctures.
 
Reflex for Safety
Each Big Apple tire features a reflective stripe so you are immediately, and obviously, visible to cars approaching from the side.
 
 
 
 
 
 
 
 
 
 
 

Shimano Shadow Derailleur

STREAMLINED SHIFTING

Originally developed for mountain bikes—for extra durability and to avoid catching on trail debris—the Shadow derailleur is streamlined and incredibly resilient, which comes in handy when you need to transport your folded bike. Whether your bike is bagged on the subway or riding in the trunk of your car, everything is neatly tucked away.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Bosch Active Drive Unit

UNIVERSAL PERFORMANCE

Adapted from Bosch’s German-engineered automotive applications, the Active 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. Its high-performance electronics, whisper-quiet operation, and low-levels of vibration are remarkable—especially given the lightweight, ergonomic design.
 
Sophisticated Software
3 sensors continuously monitor your pedaling power, cadence, and speed at a rate of 1,000 highly precise measurements per second. Those measurements are then fed into the motor to give you just the right amount of power based on the terrain so that your ride is smooth and natural-feeling. No sudden power spikes.
Quiet and Smooth
Precise motor control and rapid processing of sensor signals ensure minimum levels of noise and vibration.
Rugged and Durable
The well-thought-out design prevents chain derailments, thwarts improper loading, and reduces wear. An integrated stone chip and spray water protection make the drive unit extremely rugged.
 
 
 
 
 
 
 
 
 
 
 
 
 

Bosch PowerPack Battery

FEATHER-LIGHT POWERHOUSE

This impressive high-energy, high-power cell carries 300 watt-hours (Wh) of power in the EU, and 400 Wh in the U.S. 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.
 
Fast Charging
High-power density allows the PowerPack to charge to 50% in just 1.5 hours and fully in just 2.5 – 3.5 hours.
More Mileage
Ride nice and long between charges thanks to best-in-class energy density.
Light Weight
At just 5.5 lb, the weight is practically negligible during riding. The PowerPack is an ingenious balance of performance, size, and weight. 
 
Long Lifespan
PowerPacks are designed for many tours, miles, and years of service. The integrated Battery Management System protects the battery from overcharging, undervoltage, overheating, and short circuiting.
Ergonomic
The ergonomically designed handle makes it easy to insert and remove the PowerPack for charging. Charge it easily on or off the bike.
 
 
 
 
 
 
 
 
 
 

Bosch Purion Control Panel

COMPACT CONTROL CENTER

The on-board computer lets you switch between five different riding modes, and feeds you handy information like speed, battery level, and distance. It optimizes shifting actions and constantly updates you on the remaining range, just like a typical German car. Best of all, it’s now more compact and robust than ever.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Cargo Kickstand

READY TO HAUL

The Cargo Kickstand is built strong and will keep your fully loaded Tern bike upright. It uses Pletscher’s rear chainstay mount design.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Valo™ Direct Light

IMMEDIATE ILLUMINATION

Our 41 lux, 150 lumen Valo Direct lights up your ride without adding the drag or weight of a dynamo. It’s engineered to sit inside the handlebar stem, where it’s safe from knocks, bumps, and theft. That means it’s protected while folding, and optimally positioned to give you the most light.
 
Herrmann’s Expertise
We designed the Valo with Herrmans, the Finnish lighting experts who have a side business making lights for massive earth tunneling machines. No surprise then that the Valo is ready for all weather conditions: it’s made from cold-resistant ABS with built-in water management channels.
Extra Bright
The Valo puts out 41 lux of light, 4x brighter than the European requirement for bicycle lighting. That means you get a bright, wide beam of light that makes cycling at night safe and reassuring.
Clarity™ Optics
The Valo has a carefully shaped mirror that optimizes the beam pattern for cycling. It is wide, so you can see potential obstacles or hazards on the side of the road. It is even, without hotspots, so your night vision is not compromised. And it is clipped at the top of the beam pattern so you don’t blind oncoming cyclists or motorists.
 
Side Lighting
The Valo has light channels on each side so that you are visible to cars approaching from the sides. For additional safety, the Valo has two additional LED’s on each side, which light up when you’re stopped at a traffic light.
Visor
The Valo protects your sensitive night vision with a small visor that blocks light from shining back into your eyes.
Patented CryoCore™ Design
LED lights need to run cool to work optimally. If they run too hot over a period of time, they gradually lose brightness. Most LED lights have a tiny button sized heat sink that is used to dissipate heat. Our patented design connects the Valo to the handlebar so the entire bar is used as a massive heat sink.
 
 
 
 
 
 
 
 
 

720° Visibility

SEE AND BE SEEN

You need to be safe when you’re out on the road. That’s why we’ve designed our hard-core commuter bikes with 720° Visibility: 360° of active lighting and 360° of reflectivity.
 
360° Active Lighting
Specially designed lights allow you to be seen from all angles when it’s dark out. Accidents often occur at 90° angles at an intersection so active side lighting is especially important.
360° Reflectivity
Bright car headlights can overwhelm the active lights on a bike and this is why reflectivity is important: the brighter a car’s headlights, the brighter the reflective patches shining back at the driver. Bikes with 360° Reflectivity are visible from every angle to oncoming cars.
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Cargo Rack™

LOAD ’ER UP

The Cargo Rack is designed to get stuff off your back and onto your bike so you can enjoy the ride. It is outrageously stiff and chock full of smart details that make it better than anything else we’ve used for hauling large loads. Optimized for the unique geometry of Tern bicycles.
 
Outrageously Stiff
A rack with inadequate stiffness has a very disorienting fishtail effect when carrying a heavy load. For stiffness, we use super-oversized tubular aluminum for the top deck and a DoubleTruss™ rear stay design that triangulates the rear stays.
Pannier Compatible
The Cargo Rack is height adjustable so that it will fit pannier bags and baskets of all sizes. It’s designed so panniers sit a little further back on the rack, ensuring adequate heel clearance on every compatible Tern bicycle.
KlickFix Compatible
The Cargo Rack is compatible with all KlickFix Rackpack compatible baskets and trunk bags on the top deck.
 
SideStrap™ Bungee System
Anybody who’s had something on the rear rack slip off and into a rear wheel knows how important it is to have a steadfast rear strap system. The simple but versatile SideStrap™ system is brilliant at keeping loads of all shapes and sizes firmly in place so you can ride with confidence.
Adjustable
Fully adjustable upper and lower stays allow you keep the rack low and sleek when you’re in town and up high when you’re touring with full-sized panniers.
 
 
 
 
 
 
 
 
 
 

Pedal Holder

QUICK-RELEASE PEDAL STORAGE

Our bikes come loaded with lots of wow features, but one of our enduring favorites is the quick-release pedal. Once removed, it gives you a smaller and more maneuverable folded package. This under-saddle pedal holder lets you keep your free-floating pedal conveniently at hand.
 
 
 
 
 
 

Specifications

Specifications

Brand Tern
Motor Manufacturer Bosch

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