Tern Node D8 with BionX Review

Tern Node D8 With Bionx Electric Bike Review 1
Tern Node D8 With Bionx
Tern Node D8 With Bionx Folded
Tern Node D8 With Bionx Removable Battery
Tern Node D8 With Bionx Display Panel
Tern Node D8 With Bionx Cassette Derailleur
Tern Node D8 With Bionx Center Fold Lock
Tern Node D8 With Bionx Folded Top View
Tern Node D8 With Bionx Gearless Motor
Tern Node D8 With Bionx Rim Brakes Fender
Tern Node D8 With Bionx Stem Fold Lock
Tern Node D8 With Bionx Electric Bike Review 1
Tern Node D8 With Bionx
Tern Node D8 With Bionx Folded
Tern Node D8 With Bionx Removable Battery
Tern Node D8 With Bionx Display Panel
Tern Node D8 With Bionx Cassette Derailleur
Tern Node D8 With Bionx Center Fold Lock
Tern Node D8 With Bionx Folded Top View
Tern Node D8 With Bionx Gearless Motor
Tern Node D8 With Bionx Rim Brakes Fender
Tern Node D8 With Bionx Stem Fold Lock


  • High quality folding frame from Tern combined with sophisticated, durable and quiet drive system from BionX
  • Four levels of pedal assist and regen as well as regenerative braking and variable speed trigger throttle
  • Smoother riding electric bike thanks to larger 24" wheels vs. traditional 20", display panel and battery pack are removable for convenience and reduced weight

Video Review

Trusted Advertisers





Node D8 with BionX


$2,750 USD

Body Position:


Suggested Use:

Travel, Urban

Electric Bike Class:

Throttle on Demand (Class 2)
Learn more about Ebike classes


5 Year Frame, 2 Year Electronics and Battery


United States

Model Year:


Bicycle Details

Total Weight:

45 lbs (20.41 kg)

Battery Weight:

6 lbs (2.72 kg)

Motor Weight:

9 lbs (4.08 kg)

Frame Material:

7005 Aluminum

Frame Sizes:

(Folded Size 39 cm x 86 cm x 84 cm)

Frame Types:

Folding (Patented OCL Joint, DoubleTruss Technology)

Frame Colors:

Black with Blue Accents

Frame Fork Details:

Hi-Tensile Steel

Attachment Points:

Fender Bosses, Rack Bosses, Bottle Cage Bosses

Gearing Details:

8 Speed 8x1 Suntour Neos 1.0, (12-32T)

Shifter Details:

SRAM MRX Comp Half-Twist on Right Handle Bar


Folding Aluminum and Plastic Platform


Flux, Cartridge Bearings, Tri-Seal Technology


Physis 3D, Forged Aluminum


Flat (Aluminum)

Brake Details:



BioLogic Ergo



Seat Post:

SuperOversize, 6061 Aluminum with Micro Adjust Clamp


Aluminum (With Brass Spoke Nipples)


Stainless Steel

Tire Brand:

Schwalbe Road Cruiser with KevlarGuard, 24" x 1.6"

Wheel Sizes:

24 in (60.96cm)

Tire Details:

Reflective Sidewalls


Front and Rear Fenders with Mud Flaps, Rear Portage Rack with Bungee Cords


Magnetix 2.0 Folding Clasp Connector

Electronic Details

Motor Brand:


Motor Type:

Rear-Mounted Gearless Direct Drive Hub
Learn more about Ebike motors

Motor Nominal Output:

350 watts

Motor Torque:

40 Newton meters

Battery Brand:


Battery Voltage:

48 volts

Battery Amp Hours:

6.6 ah

Battery Watt Hours:

316.8 wh

Battery Chemistry:

Lithium Manganese Cobalt

Charge Time:

3.5 hours

Estimated Min Range:

35 miles (56 km)

Estimated Max Range:

50 miles (80 km)

Display Type:

Backlit LCD (Removable, Symmetrical Integrated Buttons for Right or Left Handed Users)


4 Proportional Assist and Generate Modes, Lighting Controls, Battery Voltage, Trip Distance, Odometer, Chronometer, Average Speed, Clock

Display Accessories:

Independent Button Pad (With Variable Speed Trigger Throttle)

Drive Mode:

Torque Sensing Pedal Assist, Trigger Throttle (Throttle Will Not Activate Below 2 mph, Assist Levels 35%, 75%, 150%, 300%)

Top Speed:

20 mph (32 kph)

Trusted Advertisers

Written Review

The Tern Node D8 with BionX is a mid-sized folding electric bike with larger 24″ wheels meant to smooth out the ride and improve handling. It features a higher end drive system from BionX that’s durable, powerful and quiet to operate in a range of modes including pedal assist and throttle. Even with the battery attached, the Node folds completely but you can opt to remove it for reduced weight or convenient charging. Both Tern and BionX are respected manufacturers, known for quality builds and good support. In my opinion they’ve created one of the most functional, well balanced and beautiful folding electric bikes around with the Node D8. Depending on your needs, they offer a very similar ebike called the Link D8 that uses 20″ wheels allowing it to become even more compact when folded. Either bike performs well and the Link is $50 less, but overall these are higher end and that’s reflected in the price and 5 year frame, 2 year drive system warranty.

The motor driving the Tern Node D8 electric is a 350 watt gearless direct drive hub from BionX. It’s located in the rear wheel for improved traction. Note that this motor has a larger diameter and higher weight than some equally specced gearless hubs but delivers increased toughness and quieter operation. I’m not aware of many folding electric bikes that offer regenerative braking or regen modes but the Node D8 with BionX has both. There are actually four levels of regen here to help you recapture energy while simultaneously slowing the bike and sparing your brake pads when coasting down hills. This feature can also be used as a form of increased challenge if you want to raise your heart rate and don’t have any hills around to climb. While this bike does not have a rear quick release mechanism (only on the front wheel) the rear wheel is still easier to service because the motor has a built in torque sensor vs. an external dropout strain gauge.

Powering the Tern Node D8 is a BionX made Lithium-ion battery pack containing Panasonic cells. It offers 48 volts of power which is above average. This has several benefits including increased torque, improved climbing ability and more efficient electricity transfer. In terms of overall capacity, this pack is slightly smaller than the stock BionX kits but that enables the folding-with-battery feature mentioned earlier and keeps the overall weight of the bike down. At 45 pounds (with the 6 pound battery attached) this isn’t the world’s lightest folding ebike but that’s due in part to the high quality fenders and rack that add utility. You could always remove these extras to shave a bit off and reduce any rattling noise that can develop over time with use, folding and storage.

The control panel on this bike is one of my favorites because it’s slim, removable, backlit and packed with readouts but not overly complex to use. It’s a second generation display from BionX with four buttons (two on each side) that are symmetrical, designed to be usable on the left or right hand side. What I’ve found is that I usually only press the upper right hand button on the display to get the bike powered up and then rely on the stand-alone button pad and throttle which are mounted on the right handle bar. Many ebikes forego throttles but it can be useful when your legs get tired (especially on a smaller bike like this) or trying to balance groceries and packages. The rear rack helps with this but you get the point… imagine crossing a puddle and wanting to keep your feet raised temporarily but still needing to move forward, that’s where a throttle can really shine. On this system (as well as other BionX) you have to get the bike up to 2 mph before the throttle will activate and this is a safety feature.

Aside from the display and buttons I like the ergonomic grips and simple grip shifter on the right side of the handlebar. I’d consider adding a bell and lights to this setup depending on your intended use. I should mention that only the right brake lever has a motor cutoff and regen activator built in. If you brake with the left lever, regenerative braking will not activate. This is a minor gripe and again, a design feature related to all BionX kits at the time of this review. Other grips include basic grips (no lockers to keep them straight), basic plastic folding pedals vs. aluminum, basic v-brakes vs. disc (they get the job done pretty well and keep the price down), and lack of suspension or the ability to add a seat post shock due to the extra-long length required.

The Tern Node D8 with BionX combines two proven platforms. The quality locking mechanisms and folding design from Tern are superb and I love the magnetic clasp meant to keep the bike from unfolding. The silent and durable motor from BionX feels zippy and the removable battery is convenient. I’m a fan of pedal assist but see the value in throttles so it’s nice that this folding ebike offers both. The eight speed cassette provides good range for climbing or pedaling fast (which is less wobbly on a bike with larger 24″ wheel size). I like the reflective sidewalls on the wheels and the Kevlar lining to deter flats. The crank arms on this bike are actually quite long for a smaller bike and that makes pedaling feel natural. While many folding electric bikes opt for rear mounted batteries I love that this one has a more balanced weight distribution combined with a “full frame” feel that doesn’t feel squished. If you’re looking for quality and can trade some space for improved ride quality then the Link D8 would be an excellent choice. It would be useful on an RV, Boat or cabin where space is limited but you plan to bike frequently and for longer distances.


  • Solid two year warranty on the frame, drive system and battery pack – Tern and BionX are both large, well established companies
  • Beautiful aesthetic with matching black and blue frame and black battery casing featuring co-branded Tern + BionX art
  • Just about every drive mode you could ask for including four levels of torque sensing pedal assist, four levels of energy regeneration and variable speed trigger throttle
  • Independent button pad on right side of handle bar is easy to reach (to change assist mode or use the throttle) doesn’t require that you take your hand off the grip to use
  • Battery pack can be charged on or off the bike, does not have to be removed for the frame to fold completely
  • Motor is powerful, durable (thanks to the gearless direct drive configuration) and very quiet to operate
  • Full length front and rear fenders with mud flaps, rear carry rack includes built in bungee cords for securing cargo
  • Several nice extras including reflective sidewalls on tires and backlit LCD display panel for improved safety during evening and night riding, ergonomic grips for improved comfort and magnetic clasp for secure folded position
  • Good weight distribution with the 9 pound hub motor at the rear and the 6 pound battery pack mounted forward on the downtube
  • BionX battery has a deep sleep protection feature that keeps it from discharging in a way that could hurt the battery over longer periods of storage
  • Satisfying to pedal thanks to the longer crank arms and eight speeds cassette, good for climbing or riding faster


  • Larger 24″ wheels provide a more comfortable ride and elevate the frame for larger riders but limit how small this bike can get when folded, consider the Tern Link D8 if space is very limited in your intended use
  • Only the right brake lever cuts power to the motor and activates power regeneration mode, it would be nice if both did
  • Rear wheel does not feature quick release, will have to use traditional tools during maintenance or fixing a flat


More Tern Reviews

Tern GSD S00 Review

  • MSRP: $4,999
  • MODEL YEAR: 2019

A sturdy, reliable, non-flexy, compact electric cargo bike with plenty of accessories to transport kids or even other adults, rated to haul up to 400 lbs. Highly visible with reflective tires, frame and bag decals, and integrated LED lights, great fenders…...

Tern GSD Review

  • MSRP: $3,999
  • MODEL YEAR: 2018

A sturdy, reliable, non-flexy, compact electric cargo bike with plenty of accessories to transport kids or even other adults, rated to haul up to 400 lbs. Available in three fun colors, highly visible with reflective tires, frame and bag decals, and…...

Tern Vektron Review

  • MSRP: $3,400
  • MODEL YEAR: 2017

A premium folding electric bike with Bosch drive system and leading warranty, sturdy and quiet with plenty of adjustability (seat post height and stem angle), smart accessories help you carry gear and stay dry without noise. The folding joints are thick and sturdy but don't have sharp edges, both latches have…...

Tern Link D8 with BionX Review

  • MSRP: $2,700
  • MODEL YEAR: 2015

High quality folding frame from Tern combined with sophisticated and quiet drive system from BionX. Four levels of pedal assist and regen as well as regenerative braking and variable speed…...

Comments (4) YouTube Comments

Ken Sanders
4 years ago

Really like that BionX system.

4 years ago

Me too Ken, they’ve been ahead of the pack with hub motor design for several years and the software and integrated update network that dealers use to troubleshoot and fix stuff is pretty amazing… this application is neat because it addresses a new niche of people who want folding but appreciate the more traditional size and ride quality of a full size bike :D

2 years ago

Every bike I read about lately that seems perfect doesn’t seem to exist any more. I don’t see a 24″ electric folding bike on their site at the moment. Did someone else add the Bionx to the Tern D8?

2 years ago

Good point, this was one of the only 24″ folding ebikes I have ever seen… it’s an uncommon wheel size, folding or otherwise! Not sure what to tell you. I guess it just wasn’t popular enough and people wanted the smaller wheels or preferred thicker tires that approximate 20″+ diameter since they add comfort.


Post a Comment

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.