Optibike Pro Series

The E-Bike for Smaller Riders


The Essex is our new e-bike that fits all the smaller riders!
'Fit Freedom' technology solves the problem of getting on and off a bike for smaller riders. It lets you move the seat out of the way with a single button!

Order by Phone: (303) 443-0932

The Electric Bike for all Sizes of People!

Dropper Seat Post and Low Height of 30″

500 Watts of Power

25 MPH Speed

60 Miles on a Charge

Quick Remove 37V 17.5Ah 647Wh Battery

P1024531 P1024532

What is Fit Freedom Technology?

An E-Bike Design that Fits Riders from 4’11” to 6’1″

Adjust the Height of the Seat with a Button Press!

Super Low 24″ Frame Standover

The dropper seat post solves the problem of hitting the seat with your leg while getting on and off the bike.

You can lower the seat when arriving at a stop sign and easily rest your feet on the ground. No more jumping off the bike at stop signs.

Smaller riders now have an e-bike option with a normal frame design and a large battery for long distance riding.

The seat drops down to a height of only 30 inches, and rises to 35 inches, all with the push of a lever. You can also adjust the seat in the frame itself to fit your height perfectly, from 4’11” to 6’1″.

Play Video

Watch the Overview Video!

Featuring New “Fit Freedom” Frame Design

If you have difficulty finding a bike that fits your size

If you have difficulty getting on and off normal bikes

If you are looking for a reliable commuter

If you want to ride without range anxiety

If you want a bike that is fun to ride

Then the new Optibike Essex is for you

In speaking with potential customers over the last 12 years, 25% told us they found E-Bikes too large. They did not feel comfortable getting on or riding the bikes, and did not buy one. They ended up missing out on the great freedom and health advantages of E-Bikes.

We wanted everyone to be able to ride an E-Bike and decided to do something about it, so we invented the new “Fit Freedom” frame design.

The new “Fit Freedom” frame design allows the seat to get very low, and you can adjust the seat height with a button press.

You can have the perfect fit for all riding conditions. Set the seat low for mounting and dismounting, and raise it for cruising down the road.

The bike also fits larger riders. You can order a dropper seat post with a travel of 5, 6, or 7 inches, making the bike a fit for riders from 4’11” to 6’1″.

Sturdy and compact, the Essex is easy to ride and installs confidence in the rider.

High Performance and Low Maintenance

  • German Built Rohloff 14 Speed Internal gear hub with 520% gear range
  • Gates Belt Drive for low maintenance (and oil free) riding
  • High performance Fox 120 mm Fork
  • Hand Built Wheels with Super Strong Downhill Racing Rims
  • Big 37 volt 17.5 AH 647 Watt Hour Quick Change Internal Battery
  • 500 Watt Mid Drive with Pedalec and Throttle Control
  • Marzocchi Dropper Seat Post


More power gives you a higher top speed, and lets you climb hills faster.









Battery Capacity

A bigger battery means you can ride farther, it's like the fuel tank on a car.










More torque lets you start from a dead stop easier, and lets you climb very steep hills.









Some basics on battery capacity and what it means for range.

A battery with more capacity generally means you can go farther on a charge.

However at maximum speed, a more powerful bike will also use more battery capacity per mile traveled.

Knobbier tires can also reduce range due to more rolling resistance on the road, and the terrain you ride on can also heavily affect the range you get.

A Note on E-Bike Range:

At Optibike our ranges are based on actual usage and testing, as well as feedback from our customers.

There is no standard for E-Bike range like there is from the EPA for Car Mileage, as a result an electric bicycle manufacturer can claim whatever they like for their range and top speed. At Optibike we try to present estimated ranges and speeds that are as close as possible to what you’ll actually get.

The BasicsTop Speed*25 MPH
Max Range*60 Miles
Power Levels5 Power Levels
Power ControlHalf Twist Throttle & Pedalec
Display TypeLCD display with 5 power levels, cycle computer functions, battery gauge
Motor500W with 60Nm of Torque
BatteryRemovable 37V 17.5Ah 647Wh Li-Ion Battery
MechanicalFront SuspensionFox 34 FLOAT 120 GRIP2 110mm 15mm Axle
HeadsetCane Creek 40
BrakesTektro Hydraulic Disc Brakes with 180mm rotors
Gear ShiftRohloff Speedhub 500/14-Speed Internally Geared Hub
DrivetrainGates CDX Carbon Belt Drive
Front Wheel Hope Hub hand laced to DT Swiss FR560 26" Rim
Rear WheelRohloff Speedhub 500/14-Speed 135 QR Hand Built to DT Swiss FR560 26" Rim
Seat PostDropper Seat Post. 125mm Travel. 31.6mm Diameter
Weight55 Lbs
FrameType6061 Aluminum with Integral battery
Stand over24"
* With 170LB rider and moderate pedaling effort