Small in size but big on smiles, the NBD is an easy-to-ride, ultra-low step e-bike that's comfy and welcoming—just like your favorite bike should be. Whether you're a seasoned rider or just thinking about your first e-bike, or whether you're doing a quick grocery run or setting off on a new adventure with your kid, the NBD will bring a smile to your face.
Easy to Ride
The NBD is our most accessible bike yet—you just hop on and go. Maneuvering along streets and paths or through playgrounds and parks is child’s play thanks to a low center of gravity. Riders have maximum control, and the ultra-low stepover height makes getting off and then back on again a breeze—even when taking a kiddo.
Easy to Share
The NBD has an adjustable cockpit that only takes seconds to resize, all without tools. Riders 147 – 190 cm tall (4’10” – 6’3”) comfortably fit the NBD, so it comes ready for the whole family to share.
Easy for Everyone
The NBD puts inclusive design at the forefront. Average-sized, able-bodied folks along with people of many different sizes and abilities can share the fun of riding thanks to the NBD’s accommodating geometry and unique frame design.
As Comfortable as Can Be
With wide, ergonomic grips on swept handlebars, an upright riding position, and a multi-adjustable stem, the NBD is our most comfortable bike. Add wide balloon tires and a suspension seatpost to the mix, and most road vibration becomes a thing of the past.
Built to Last
Our philosophy is to keep our bikes on the road for as long as possible, not to create disposable products that are built to fail. We start with intentional design choices that make the bike serviceable and safe—and end up with a reliable vehicle you can use day in, day out.
Easy to Transport
The NBD’s FlatFold feature makes it easy to fit the bike into trains, buses, RVs, and even small-sized cars. Just lower the seatpost, fold down the Physis Handlepost, and the NBD transforms into a low and flat package. No bike racks necessary.
Easy to Store
The NBD parks and rolls vertically, so it’s easy to store safely indoors. Roll it vertically into elevators or conveniently park it just about anywhere in your home or office.
Share the Adventure
Have a kiddo? Take them along for the ride! The specially designed Gaia Rack is built strong and pairs well with many child seats. The NBD’s ultra-low center of gravity makes it much easier to stay in control.
Best of all is getting on the bike. Low, gentle steps are all that’s required to get on or off the NBD, so there’s never any hassle.
IT’S REALLY FOR EVERYONE
SimpleStep Frame Design
The NBD's frame design makes it super easy to get on and off the bike, ride in comfort, and put your feet down when at a red light—even when you’re fully loaded with groceries or carrying your little one.
Low, Low, Low Step
A step-through frame that's both ultra-low (39 cm/15.4") and ultra-long means it takes only one step to get on and go.
Fits Most Sizes and Shapes
The adjustable Andros Stem makes the NBD feel like it was tailor-made. Riders of different sizes can all find their most comfortable position. And when it’s time to share with grandpa, he can re-adjust the fit in seconds.
IT'S REALLY THAT COMFY
Ergonomic Cockpit
Swept handlebars and Ergon grips make the NBD just about the most comfortable cockpit you'll find on a bike. The slack seat tube enables all riders—even the smaller in stature—to place their feet on the ground at stops.
RideEasy Suspension Seatpost
The custom short-stack suspension seatpost adjusts to fit riders of different heights, and allows even smaller sized riders to travel without feeling road vibrations.
Air-Cushion Balloon Tires
No special technology needed—air suspension is already built in. The air cushion from Schwalbe’s wide balloon tires give a smooth ride, helping to reduce bumps and other road vibrations when riding.
Feet-Friendly Pedals
The platform of the pedal is extra-large for boosted foot stability. Feet naturally and securely snug into its gentle concave shape. And the pedal has an improved grip for all types of shoes.
IT’S REALLY THAT GREAT
Smooth, Powerful Motor
The Bosch e-assist motor system is powerful, efficient, smooth, and supremely quiet. It’s also backed with best-in-class service and support, and a network of thousands of trained dealers in cities around the world.
Bold, Bright, and Easy to Read
The Bosch Intuvia display has all the information you need. It's easy to read on your daytime rides, and it’s brightly lit for when you ride at night. Plus, the entire display is removable and perfectly sized for pockets, so you can carry it with you after you park.
Hassle-Free Belt Drive
Bike chains are great, but often need cleaning and lubing. The NBD S5i comes equipped with a Gates belt drive for durability, low maintenance and a smoother and quieter ride, so you can spend less time cleaning, and more time riding.
Easy-Access Frame Lock
With an Abus frame lock at the top of the rear wheel, most riders can lock up without having to bend down low. And for added simplicity, you’ll need only one key, as the frame lock and battery lock are keyed alike.
What Makes it a S5i?
Bosch Performance Line motor provides up to 65 Nm of torque and 300% support
Bosch PowerPack 500 powers longer trips, commutes, and journeys
Gates belt drive for clean, quiet, maintenance-free operation
Shimano® Nexus 5-speed internal hub
Magura MT4 hydraulic disc brakes for superior stopping power—even when carrying a passenger and riding fast
Ultra-low 39 cm (15.4”) standover height means gentle, low steps are all that’s required to get on and go
Ultra-low center of gravity improves balancing and maneuvering when riding with kids through parks and narrow streets
Fits riders 147 - 190 cm (4'10" - 6'3")
Gaia Rack is certified to carry up to 27 kg (60 lbs) and works with many child seats
Proven safe and reliable: frame and fork have undergone the EFBE Tri-Test to the 140 kg Maximum Gross Vehicle Weight
MOTOR:Bosch Performance, 300% Assist, 65 Nm Torque, max speed 25 kph (EU); max speed 20 mph (US)
BATTERY:Bosch PowerPack 500
DISPLAY:Bosch Intuvia, 4 mode selectable, walk assist
RANGE:51-118 km (32-74 mi)
CHARGER:Bosch Standard Charger
BELLS & WHISTLES
BELL:Aluminum
CHAINGUARD:Tern Custom, full chain cover
KICKSTAND:Ursus, rear mount
LUGGAGE SOCKET:Combo Mount
FRONT LIGHT:Tern Valo Direct, 190 lumens
REAR LIGHT:Herrmans
FENDERS:SplashGuard, stainless hardware
RACK(S):Gaia Rack, 27 kg capacity, Vertical Parking
FRAME LOCK:ABUS, keyed-alike with Bosch battery
*Note: These are our standard model specifications. The bike's weight and folded dimension may not include racks and fenders. We do our best to ensure that the specifications listed here accurately reflect the exact parts found on our production bikes. However, component changes do occur for various reasons and there may be brief delays on site updates. We reserve the right to make component changes without prior notification, which may cause discrepancies with the information listed on the web.