A closer look at the Vektron P9

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

A new way to carry your bike

One of our favorite ways to get a Tern bike up a set of stairs is to hook the nose of the saddle over a shoulder. It’s fast and easy, but the nose of the saddle can be hard. We solved this pain-point by re-engineering the underside of the saddle into a comfortable shoulder pad. It cushions and “grips” your shoulder so your hands are free to carry other things—like a backpack or the weekend’s groceries.

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 Hydraulic Disc Brakes

All-weather stopping power

Shimano hydraulic disc brakes deliver powerful stopping power in all weather conditions with the touch of a finger.

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 Sora 1 x 9 Drivetrain

Fast in the city

For most cities, all you need is a simple 1x gear set up. Shimano’s excellent Sora group delivers fast, precise shifts and 9 widely and evenly spaced gears.

Bafang M400 Drive System

Power to the People

The M400 System adds smooth and quiet power to your natural pedal-stroke, helping you ride faster and farther. Since you’re riding farther, and getting there quicker, more destinations feel a ‘bikable’ distance away. That means you’ll ride more often too. The M400 System is optimized for range and torque, giving you faster acceleration and five levels of power-assistance to overcome hills and headwinds when you need to, or save power for later.

Bafang M400 Drive System Battery

Raw Power

The M400 System Battery gives you enough juice for up to 90 km of power-assisted riding. It offers 400Wh of charge, supplied by the same Panasonic batteries chosen by Tesla. It locks on the bike, and comes off with you for theft protection and indoor charging.

Bafang M400 Drive System Display

The Control Center

The M400 System Display is the nerve-center of your electric bike. Cycle through six power modes, run your lights, and even get the bike to walk itself at the push (and press) of a button.

Centerstand Kickstand

For a Faster Fold

The Centerstand Kickstand does everything a standard center-mount kickstand can do, plus it helps you fold your Vektron with ease. Simply extend the Centerstand and the Vektron balances on its rear wheel. Fold the frame, stem and handlepost, all without lifting your bike.

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.

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.