Frequently Asked Questions About Vektron Gen 4 Folding eBike
Thinking about the Vektron Gen 4 for your daily commutes or weekend adventures, but still have questions? We’ve gathered the most common questions to help you get to know the bike better and see if it’s the right fit for you.
Vektron overview
Is Tern Vektron considered one of the best folding electric bikes?
The Vektron is widely regarded as one of the top folding e-bikes because it offers a good balance between ride quality, portability, ease of use, and cargo capacity.
Learn more about the Vektron here!
Can Tern Vektron be used as a regular bike without electric assistance?
The Vektron is a pedal electric cycle (pedelec) that can be ridden like a regular bike without electric assistance. Its motor only provides assistance while you pedal, and stops giving power when you stop pedaling or reach a set speed.
Is Tern Vektron ideal for mixed-mode commuting?
The Vektron is great for mixed-mode commuting because it folds quickly and compactly, is easy to roll through stations, and can stand on its own when folded.
Learn more: Tips for Getting Started With Mixed-Mode Commuting (and How E-Bikes Can Help)
Is Tern Vektron good for city commuting?
The Vektron is great for city commuting thanks to its comfortable ride, powerful electric assist, cargo capacity, and easy folding for storage or transport.
Who should get a Tern Vektron?
The Vektron is ideal for city commuters, multimodal travelers, and van-life enthusiasts who want a reliable e-bike that rides well and is easy to fold, transport, and store in small spaces.
See related: How Much Should I Budget For a Good Electric Bike?
Models & specs
What class of eBike is Tern Vektron in the US?
In the US, the e-bike class system rates the Vektron as a Class 1 e-bike. This means it provides pedal assist only up to 20 mph and does not have a throttle.
See related: E-Bike Buyer’s Guide: Motors & Classification
How fast can Tern Vektron go?
The Vektron can go up to 25 km/h in countries that follow the EU standard, and up to 32 km/h (20 mph) in the US as a Class 1 e-bike.
What’s the range of Tern Vektron?
The Vektron’s range depends on the model and battery it comes with. For example, the Vektron P5i with Bosch eBike System 2 and a 500 Wh battery has a max range of 141 km (88 mi), while the P5i with Bosch Smart System and a 545 Wh battery has a max range of 120 km (75 mi).
For more details on each model’s range, check the specifications on its bike page.
What’s the size of a Tern Vektron when unfolded?
The unfolded Vektron measures 161 cm (63”) in length, 62–66 cm (24–26”) in width, and 103–106 cm (41–42”) in height, depending on the model.
What’s the folded size of a Tern Vektron?
Depending on the model, the folded dimensions of the Vektron are either 42 x 85 x 69 cm (16.5" x 33.5" x 27.2") or 41 x 86 x 68 cm (16.1" x 33.9" x 26.8").
To see the folded size of each model, check its bike page for full specifications.
What size are Tern Vektron wheels?
The Vektron uses 20" wheels.
Does Tern Vektron come with a belt drive option?
Yes! The Vektron P5i comes with a Gates Carbon Drive CDC belt for a quiet & virtually maintenance-free ride.
What motor does Tern Vektron use?
The Vektron is equipped with either a Bosch Performance Line motor or a Bosch Active Line Plus motor, depending on the model.
What models are available for Tern Vektron?
The Vektron comes in four models: P5i, P7i, P8i, and P10.
For details on each model, check out its bike page.
Is it easy to remove the battery from Tern Vektron?
Yes! You can easily remove the Bosch PowerPack Frame battery from the Vektron by unlocking it with the key and lifting it out for charging, storage, or transport.
Read more: How to Care for Your Bosch eBike Battery
Fit & comfort
Can tall people ride Tern Vektron easily?
The Vektron’s cockpit adjusts to comfortably fit riders up to 195 cm (6’5”) tall.
Can short people ride Tern Vektron easily?
The Vektron’s cockpit adjusts to comfortably fit petite riders 147 cm (4’10”) tall.
Is Tern Vektron adjustable to fit different rider sizes?
Yes! The Vektron’s adjustable handlebar stem and telescopic seatpost easily resizes without tools to comfortably fit riders of different sizes.
What’s the maximum rider weight that Tern Vektron can carry?
The Vektron is designed to safely carry a maximum rider weight of 105 kg (231 lb).
Is Tern Vektron comfortable to ride?
The Vektron’s adjustable cockpit and ergonomic grips make it comfortable for riders of all sizes. Some models even have swept-back handlebars for a more relaxed riding position.
Folding & rolling
How big is a folded Tern Vektron?
Depending on the model, the Vektron folds down to about 41 × 86 × 68 cm (16.1" × 33.9" × 26.8"), small enough to fit in a car trunk or a closet.
Is it difficult to fold a Tern Vektron?
It may take a bit of practice for some, but the Vektron can be easily folded down in seconds.
Watch how it’s done in our folding tutorial video!
How long does it take to fold a Tern Vektron?
The Vektron is designed to completely fold down in just 10 seconds.
See related: Vektron folding tutorial video
How do you fold a Tern Vektron?
See our folding manual for the Vektron, or watch how it’s done in our folding tutorial video.
Can you roll a folded Tern Vektron?
Yes! When folded, the Vektron rolls on its wheels using the saddle as a handle, making it easy to maneuver in places like train stations.
Watch how it’s done in our video tutorial on folding, rolling, and parking the Vektron.
Portability & storage
Is the Tern Vektron folding electric bike heavy?
The Vektron weighs about 20 kg (44 lb) without the battery, so it’s light enough to carry for short distances.
How much does the Tern Vektron's battery weigh?
The Vektron’s Bosch PowerPack Frame battery weighs between 2.3 and 3 kg (about 5 to 6.6 lb), depending on the size.
Can a folded Tern Vektron fit in a regular car trunk?
Yes! When folded, the Vektron is small enough to fit in a regular car trunk—and in most sedans, you can even fit two folded Vektrons side by side!
Can you bring a folded Tern Vektron on an airplane?
A folded Vektron might be boxed up and accepted as checked baggage, but it depends on the airline, so check before you travel. However, the bike’s lithium battery must be removed, since batteries rated over 160 Wh are not permitted on passenger aircraft, either in carry-on or checked baggage. You can buy, or in some cases rent, a battery at your destination.
Can you bring Tern Vektron onto public transport?
Most public transport allows you to bring the Vektron, but it’s a good idea to check with the operator first. For example, some may require you to purchase a bike ticket or make a reservation first.
Can a folded Tern Vektron stand on its own without support?
Yes! When folded, the Vektron can stand on its own—either upright on the rear rack ends or lengthwise against the Underframe Support.
You can see both ways in our video tutorial on folding, rolling, and parking the Vektron.
Accessorizing & loading up
Which third-party accessory mounting systems is the Tern Vektron compatible with?
The Vektron works with several common accessory mounting systems, such as KLICKfix, Racktime SNAPIT 2.0, and Ortlieb Quick-Lock 2.1 and 2.2.
See related: Tern Vektron Accessory Guide
Can you put a child seat on Tern Vektron?
The Vektron can fit one clamp-style, rear-rack mounted child seat like Thule Yepp 2 Maxi, Bobike Go Maxi, and Urban Iki (carrier mounting). If you’re carrying a young child in a child seat, make sure to stay within the load limit and follow the safety guidelines.
Where can you mount accessories on Tern Vektron?
You can attach accessories to the Vektron’s rear rack. To add accessories to the front, you’ll need to install the Luggage Truss onto the Luggage Socket at the head tube.
See related: Tern Vektron Accessory Guide
How much weight can the rear rack carry?
The Vektron’s Atlas V Rear Rack is rated to 27 kg (60 lb).
What’s the weight limit on a Tern Vektron?
The maximum gross vehicle weight (MGVW) is the most weight your bike is designed to safely carry. For the Vektron, that limit is 125 kg (276 lb). This total includes the bike (with battery), the rider, any accessories, and any cargo. Make sure everything together stays under this limit for safe riding.
What is the Tern Vektron's rear rack specification?
Atlas V Rear Rack Specifications:
- Round tubing
- Tube diameter: 16 mm
- Rack width: 128 mm
Can you install front accessories on Tern Vektron?
Yes, you can mount KLICKfix accessories at the front. You’ll need the Luggage Truss, which attaches to the Luggage Socket on the Vektron’s head tube.
See related: Tern Vektron Accessory Guide
Maintenance
How often do I need to service my Tern Vektron?
We recommend bringing your Vektron to an authorized Tern dealer:
- 1 month or 200 km (125 mi) after purchase,
- Then every 6 months or 1,000 km (620 mi) after that,
- Or anytime the Bosch system shows a service warning
See related: Tern Bike Maintenance Schedule
What regular maintenance can I do at home?
Feel free to use the following guides for regular maintenance you can do at home on your Vektron:
What are some tips for extending the battery life?
For tips on caring for your Bosch battery, including how to charge it to maximize battery life, check out our E-Bike Battery Care Guide.
See related: Official Bosch Battery Guide (2024 version)
Purchase, warranty, & after-sales support
Where can I buy a Tern Vektron?
Thanks for the interest! You can buy a Vektron from an authorized Tern dealer. Use our Dealer Map to find the one nearest you.
What is Tern Vektron’s intended use?
The Vektron is designed for individual personal use: riding with both wheels in contact with paved roads only. It is not intended for racing, jumps, hops, wheelies, or similar activities.
See related: Vektron QuickStart Manual
Does Tern Vektron come with any warranty?
Yes, the Vektron comes with a warranty:
- 5 years for the Tern frame, fork, and handlepost
- 1 year for all Tern or BioLogic parts and components
- Other parts are covered by the original manufacturer’s warranty
If you register for Tern Care within 30 days of purchase, your Tern frame, fork, and handlepost warranty is extended from 5 years to 10 years.
See related: About Tern Warranty
Does a second-hand Tern Vektron come with any warranty?
It can! The Tern Warranty Transfer lets a current bike owner transfer any remaining warranty to a new buyer.
See our Warranty Transfer page to learn more.
Is it easy to find a replacement battery for Tern Vektron?
Our 7-Year Support, which comes automatically with every Tern e-bike equipped with the Bosch system, ensures that replacement parts for key components—like the battery and motor—will be available for at least 7 years from the original purchase date.
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