The Birth Of

A New Class of E-Bikes

If an expensive mid-drive and hub-motor e-bike had a baby...

They'd name it Acey.

And it would have the best features of both:

  • The sophisticated pedal sensing tech of an expensive mid-motor e-bike.


  • The reliability, power and zip of a geared hub-motor.


  • A throttle for power on demand.

Acey DC E-Bikes. Born in 2017.

Our electric bikes are defined by their

sophisticated ride performance.

From tech to tires, every part is selected for it's contribution to the overall ride.

Torque Sensor

Dual-Pedal Bottom Bracket

Our torque sensor delivers an intuitive, predictable and pure bike riding experience - while giving you the pedaling power of a super-hero!

What it is:

Our torque sensor is a high-precision measuring device that replaces your pedal's axle. It continuously measures your natural interaction with the bike (pedal pressure and pedaling speed) to control the PAS and provide equal and proportional power to your input.

Why you want it:

​It's the "Gold Standard" for pedal assist that makes your e-bike ride and react like a regular bike, but twice as easy to pedal.

​How it works:
On a regular bike, you press harder on the pedals to speed up or climb a hill, softer to slow down.

That's how you ride an Acey DC E-Bike. It's so natural and intuitive, you'll forget your riding an e-bike!


Sine-Wave Controller (15A)

This sine-wave controller applies power smoothly, makes the motor quieter, reduces motor vibration and creates a consistent and predictable ride.


What it is:

The sine-wave controller is the onboard computer that continually processes your input and apply power. It controls all electronics, including the lights, from it's hidden and secure location inside the frame of the Tailwind and Venture and inside the battery mount of the Eclipse SS and ST.


How it works:

Using multiple data points from sensors, our custom algorithm can tell the difference between needing power to speed up, maintain a pace or climb a hill. You only get the power you want or need.


Smooth, but powerful response.

With extreme precision, it controls the motor's response with firm but smooth power. It's quick and controlled - no uncontrolled bursts or runaway acceleration.

The instant response of the controller, combined with the precision of the torque sensor, provides the ultimate ride experience you are searching to find.

500 Watt Geared Hub Motor

Power and torque to make molehills out of mountains and whisk you down the trail/road.

What it is:

Geared hub motors are light and small, often going unnoticed behind the rear gears and brake disc.

Don't let appearances fool you:

Our powerful 500 watt motor has 45Nm of torque and an automatic "beast mode" with up to 720 peak watts to flatten hills, conquer the wind and stay with traffic through an intersection from a stop.

How it works:

The key to our hub motor's efficiency is three planetary gears inside the motor. They allow it to run at its peak speed - even when the wheels are turning faster or slower than the motor. This differs from other hub motors that spin at the same rate as the wheel, requiring a slower response until it builds speed.

Motor speed and torque.

Increasing one decreases the other. Our motors are in the middle, providing balanced strength and quickness. They are not speed pedelec motors and peak at 22mph with diminished assistance to 25mph.


Samsung Cell Batteries

The "fuel tank" for your PAS with enough juice to take you from A to B. And to C, D, E...

Samsung cells are synonymous with electric vehicles because of performance and reliability.


​Eclipse SS/ST - (top photo)10.4Ah, 499.2 watt hours. The cruiser batteries lock securely inside the rear rackand are easily hidden beneath saddlebags for stealth. The back of the battery is equipped with a large reflector and bright multi-LED lights.

Venture/Tailwind - (bottom photo) 13Ah, 620 watt hours. The commuter's batteries are semi-integrated in the down tube and feature 25% more battery, for longer distances.


  • 48V system

  • Port for charging on or off the bike.

  • USB charging port

  • LED battery level indicator

Programmable Color Display

The display is center mounted so you never fully take your eyes off where you're going.Quickly see the info you need at a glance - in direct sunlight or while wearing sunglasses.

The large circle surrounding your digital speed display shows MPH on the left side, battery wattage use on the right (back tire off the ground in photo, so not using much wattage).

  • Ergonomic control is operated by the left thumb.

  • Choose 3, 5 or 9 levels of assist.

  • Password protection option

  • Use "Walk Mode" to walk your e-bike up stairs!

  • USB charging port

The display tracks and displays:

  • Speed

  • Real-time battery usage

  • Odometer

  • Trip info (time, distance)

  • Range remaining on battery (in miles)

  • Calories burned

  • Top speed (lifetime)

  • Average speed (lifetime)

venture twist throttle.jpg

Half Twist Throttle

You don't have to use a throttle, but you'll always be glad it's there:


  • A throttle is a head start for your pedaling when starting from a stop, no matter what gear you stop in. Twist to quickly get to pedaling speed.

  • It's the ability to take a rolling rest break when you're getting back into shape, rehabbing from an injury or just feeling "bleh" after a long day.

  • It's the ability to ride with friends - all with different riding skills and physical fitness levels - and stay together as a group. Nobody falls behind. Nobody needs to stop for frequent rest breaks. And nobody will insist on shortening the ride because they're tired.

All models feature a twist throttle because gently clamping your hand to hold it in place is so much easier than continuously pushing a lever with your thumb.


The Venture features a half-twist throttle located on the right grip. The Eclipse beach cruisers and Tailwind have half-twist throttles on the left grip.

If you need a thumb throttle, we can arrange.

Because the safety, rideability and quality of an electric
bike are only as good as the "bike."

Here are some of the common features of Acey DC E-Bikes:

Aluminum Frames

The Eclipse SS frame is designed with the classic, laid-back look of a California beach cruiser. The frame geometry seats you in an upright, comfortable riding position that lets you look around and enjoy the journey.


The frame was designed for the rigors of an electric bike and made of 6061-T6 aluminum alloy - strong, safe, light, durable and corrosion and rust resistant.

Lightweight aluminum frames are popular on all bikes, but important on e-bikes to offset the weight of the motor and battery. The lighter weight also makes the Eclipse more efficient and easier to pedal than a heavier steel frame.

Steel Fork:

While aluminum is light and strong, it's also rigid. An aluminum fork can make your hands feel every little bump and imperfection. Steel forks are naturally more flexible and "springier" - providing vibration dampening qualities and a more comfortable ride mile after mile.


All Acey DC E-Bikes have a clear coat of paint. In the case of the Eclipse SS, it's a clear coat that adds amazing shine and vibrancy to the paint. You can see the depth of color and the variations of hue in direct light.

E-Bike Rated, Flat Resistant Tires

SIZE: 26" x 2.2"

TYPE: Kenda Kwick Drumlin KS+ moped tires

5-STARS:  Durability, Dry Grip, Flat Protection

4-Stars: Speed, Wet Grip.


Getting a flat tire on ANY bike is a buzzkill. When it happens a mile down a trail or halfway to school or work, you can only hope your day gets better.


No worries, we increased the thickness of the K-Shield in our tires to 5mm for the best balance of flat resistance and great ride quality.


​​K-Shield Plus - a 5mm thick, light and flexible rubber containing ceramic particles and synthetic polymer fibers (exceptional strength and thermal stability) to form a puncture resistant, flexible barrier inside the tire, under the tread area.

  • Feels at home on concrete as well as gravel paths and forest roads.

  • Deep sipes for water channeling in wet conditions

  • Burly shoulder knobs add grip for more cornering confidence in wet/loose conditions.

  • Be seen - Reflective tape across sidewalls for better nighttime visibility.

  • E-bike ready - Certified according to ECE-R75 norm and approved for e-bikes up to 31mph.


We use quality components for performance, rideability and longevity.


The Eclipse features the quality precision of smooth and dependable shifting from Shimano Altus components.


The Rapid Fire shifter reliably moves the chain up and down through the gears with dependable precision. A pull of the index finger shifts to higher gears, a press with the thumb shifts to lower gears. A hard press with the thumb skips gears through the downshift - perfect for quickly down-shifting when coming to a stop or to change gears when climbing hills.

​​T = Teeth on Gear

The Eclipse has a large, 42T chain ring at the pedals and 11-32T gear set. The combination provides a wide range of gearing (from hills to flatlands) to make your ride easy and comfortable at every speed.

And you'll never look like a hamster in a wheel, legs a whirling blur, when you ride your Eclipse at top speed. You'll always find the perfect gear for your speed, terrain and riding style.

Manual EZ-Pull Disc Brakes

​Going fast means the need for more stopping power. More stopping power means more friction on the disc. More friction on the disc can lead to overheating your brakes and warping your discs...

From wider tires to oversized 180mm discs and powerful brakes, the Eclipse was designed to stop before it was designed to go.

The Aquila EZ PUll braking system is Tektro's best manual braking system for use on electric bikes and their weight, speed and required stopping force.


We used manual disc brakes because the overall design concept was to make the Eclipse a minimal maintenance e-bike. You may need to make small adjustments from time-to-time, but it's easy and almost any rider can do it. And we supply the tools!

Brake Levers

The EZ Pull brake levers and careful routing of the brake lines make the brakes on the Eclipse smooth and easy to apply whether slowing or stopping.

The brake levers are also motor cut-off switches and a slight squeeze will kill the motor without applying the brakes. This is an important technique when pedaling through turns so the motor does not add power - especially in crowded areas or tight turns.

Suspension Seat Post and Saddle

Roads aren't always smooth, but that doesn't mean you have to feel every little imperfection...

Suspension Seat Post

The Eclipse features an adjustable Promax suspension seat post with 40mm of travel. Adjust the rebound (softness) to fit your weight and road conditions with a twist of the cap under the rubber protective boot - no tools required.


It's called a saddle, but it attaches to a "seat" post. Like you, we don't care what you call it, as long as it's durable and comfortable.


The cruiser seats are Supreme Wave comfort seats, made by KNUS Europe. They feature polymer suspension balls that absorb shock and dampen vibration better than old-school springs. And if you add a child seat to the rack, no worries of little fingers getting pinched in seat springs. 



The seats are so comfortable that you don't think about them during or after the ride. That's because when comfort does it's job, you don't fidget on your seat or walk funny after a long ride. And these saddles are up to that job!


KNUS claims their comfort saddles reduce up to 80% of the pressure on your seated pressure points. This was our favorite of all the saddles we tested, hands down. No "break-in" required.



Vacuum Sealed, Waterproof, Durable

This seat was designed for one thing: comfort. And durability. So two things: comfort and durability. And suspension with vibration dampening, but that's part of comfort, so we'll stick to two things...

Rear Rack

Permanent rack and battery holder is welded to the frame. No rattle. No jiggle. No weak attachment points.


The Eclipse's rack is aluminum and securely locks the battery into place. Charge the battery on or off the Eclipse with easy access to the charging port.


  • The tail light is on the back of the battery.

  • The rack can hold up to 55 pounds of weight.

  • Solid aluminum construction.

Fenders Included

The Eclipse comes with durable steel, full-coverage fenders on the front and rear. Unlike some fenders, the Eclipse uses strong attachment supports that eliminate rattles over all but the worst bumps and conditions.

Everyone loves fenders - especially after unexpected rain - because nobody likes arriving at their destination with a muddy stripe up their back and between their legs. Well, nobody we know.

That being said, the fenders are removable for those who like the minimalist beach cruiser look, but with a modern, premium ride.

NOTE: If you do develop a rattle, check to make sure road vibrations have not loosened any of the five (5) bolts that secure the fender. Loosening the two bolts on the back of the fender allows you to re-center it over the tire if an impact moves it out of alignment.

Choose a model to learn more about it's components and features...

Venture - Hybrid Commuter

Tailwind - Urban Commuter

Eclipse SS - Beach Cruiser

Eclipse ST - Beach Cruiser