The Rambler E.V.O. is simple to ride and loads of fun! Turn on the battery and ride away!
Shop Rambler EVO Trikes

The Rambler E.V.O. is simple to ride and loads of fun! Turn on the battery and ride away!
Shop Rambler EVO Trikes

Introducing the Electric Assist TerraTrike!

The TerraTrike Rambler Electric Vehicle Option (E.V.O.) is ready to provide whatever level of assistance you want, whenever you need it! Feel the intuitive power help you climb hills with ease, maintain your pace on longer rides, and increase your range all in the name of comfort!

The Rambler E.V.O. is not intended to be just an electric trike; but rather an extension of your journey while still getting all of the benefits of trike riding.

The Rambler E.V.O. is simple to ride and loads of fun! You turn on the battery and ride away! With a generous range, you will have nearly limitless potential. The lithium-ion battery can be charged overnight with the included “smart” charger. Simply plug the charger into a nearby outlet, or the battery can be easily removed from its case for charging in a different location. The charger is “smart” and will not overcharge the battery, so you will always be ready for your next adventure!

Rambler E.V.O. – Bosch

TerraTrike’s latest Electric Vehicle Option, the Bosch Rambler E.V.O., is powered by the award winning Bosch Active Line Plus mid-drive motor and the PowerPack 400Wh battery. With a whisper quiet motor and a deceptive amount of power on tap, this system is wickedly fun. Go from the “all-day ride” Eco mode to an exhilarating Turbo mode with a few clicks of a button. Having this control and all of your ride information at your fingertips with an included console creates an experience without limitations.

Add in how lightweight the Bosch mid-drive unit is and the strategically placed frame mounted battery, and you’ll find the trike is so well balanced you’ll forget it’s even there. The Bosch Rambler E.V.O. was designed with premium features packed into a tried-and-true platform so it can drift into the background and you can simply enjoy the ride.

Click here for E.V.O. user manuals.



Bosch Active Line Plus

At only 7.1lbs. this 250W mid drive motor puts out a large 50Nm of torque. A huge amount of power in a Class 1 eTrike that is smooth, quiet and very intuitive. The resistance-free pedaling is a welcome advantage if ever switched off or over 20mph. On top of this you get the refinement and assurance of a quality Bosch product.

Bosch PowerPack 400 and Purion Display

The lithium-ion battery is lightweight and works seamlessly with the motor to operate as a complete system. The Purion Display provides a single global snapshot of motor and battery performance along with riding and charging statistics. The beauty is knowing that your system is ready when you are.

Electric Assist Drivetrain

The Rambler E.V.O. system uses a traditional derailleur drivetrain setup. Power system aside, it functions as any other external drivetrain bicycle.

Direct Steering

Horizontal handlebar position provides responsive leverage to steering inputs, and gives the Rambler E.V.O. a tight turning radius.

Going the Distance

The Rambler E.V.O. gives you increased freedom without the range anxiety. The Bosch mid drive’s efficiency is unsurpassed allowing even more freedom in where you venture. NOTE: Your mileage will vary by terrain, weight and assist level; get to know your system before riding to the limits of the perceived range.



Frame Material
Gear Inch
Load Limit
Steering System
Rambler E.V.O. – Bosch
Avid BB7 Mechanical
microSHIFT 11-36 10 Speed
Electric Green
Lasco Single 165mm 46T
4130 Chromoly Steel
300 lbs.
Comfort Pedal
microSHIFT XCD Trigger
Schwalbe Marathon 20 X 1.5
56 Lbs.
TerraTrike Black Double Wall

“As a guy who has been reviewing bikes and trikes for twenty years now, I can get a bit stuck in my ways and can sometimes get confused by complicated electric assist systems. I didn’t feel that way at all with the Rambler EVO. It was dead easy to use and worked very well. The quality is excellent!”

Customer Reviews