Go To Step 3 and Select Batteries -->
Second step in creating Betterbike™ is choosing 1 or more motors.
Fortunately, comfortable recumbents can be fitted with a variety of mid-drive motor or a hub-drive motor kits.
Mid-drive kits modify the recumbent's chain system to transmit both human and motor power
to the gearing at the rear wheel. Adding gearing to the motor provides the user with both high speed and good hill-climbing.
- Electro Portal offers the E-4 mid-drive kits
for the Sun Bicycle EZ-1, EZ-3, X3, EZ Classic SX, EZ Tri Classic SX. With the universal adaptor, this kit can also be mounted on just about any trike or recumbent bike. Kits are
very reasonably priced at $695 and capable of 500-600W depending on battery chemistry.
Click here for an in-depth look at this kit.
Click for instructions about installing an Electro Portal E-4 kit on an EZ-1 or EZ-3.
June 2011 update: EZ Classic SX and EZ Tri Classic SX adapters are finally here for these new style recumbent bike and trike.
E-4 KIT in the Movies
The Movie "Zookeeper" was released July 8, 2011.
Zookeeper Productions (originally a division of MGM) bought
4 complete E-4 kits from Electro Ride LLC in 2009.
Click Here for the Zookeeper trailer.
Note the recumbent trike chase scene right after the dating tip:
"Never let a rival dictate the outcome of a situation."
Can you spot the E-4 kit hidden on the Trike?
(Hint: look for the battery mount in the back of the trike)
Restocking fee of 10% will be applied to cancelled orders. Restocking fee of 20% for the battery portion of the order only. Exchanges may
be exempt from this fee depending on situation.
Mid-frame mount for higher power/weight ratio.
EZ3-SX by Sun Bikes with our E-4 motor system
Electro-Cycle "E-4" mid-drive motor Kit...
Unlike motors stuck in one gear, these assist in all gears!
--24 Volt, 500 Watt, brushless, 3-phase motor, including built-in controler, planar gear speed reduction (2600 reduced 9.33:1), sensors to prevent over-heating - under-voltage, state-of charge indicators in thumb type speed regulator, brake lever power-off switches (Canada only), and everything you need to tie into the pedal gearing.
This kit began as an improvement over other attempts to add a mid-frame electric motor to Easy Racer recumbent bikes.
Though we now have motor mounts for most of the "Sun" EZ recumbent bikes and trikes (designed by Easy Racers) other cycles have been adapted...long frames, tandems, and 4 wheel quadracycles.
To start learning about various recumbent bikes, click on the "Styles" tab above.
Quadribent™ Side-By-Side Recumbent Bicycles for Two People.
Ready to "take the lane"? The EZ-1 Quadribent™ is a recumbent vehicle consisting of parallel paired
recumbent bicycles joined together side-by-side to form a recumbent quad bicycle that two people can
ride together. Optional rumble seats accommodate additional riders. The Quadribent™ includes a
built-in cargo platform which allows you to easily carry things with you: groceries, a picnic
lunch, perhaps even your dog! [Editor's Note: Or a big battery pack for long-range riding.]
Add an electric drive (e.g. Electro Cycle E-4) and you've got a scaled-down "car". Bike together
for fitness, health, therapeutic exercise, sport, family fun and transportation. Learn more at