Category Archives: pedal assist
A few tadpole trike manufacturers are offering electric motorized models. One of them is TerraTrike. I applaud this as having a BionX unit installed on my Catrike I really love having it. I have a friend I ride with who has a BionX unit installed on his TerraTrike Rambler. The BionX unit is a great unit as long as everything works right (mine doesn’t), but it is expensive. This E.V.O. model is far less money although feature-wise I much prefer the BionX unit. That being said, this Falco unit is 750 watt vs. the BionX 350 watt and it offers a 2 mph reverse as well as a crawl forward from a standstill. BionX has neither. Of course, the thing about this deal which is a real turn off for me is the fact that it is a TerraTrike trike. I just am not impressed with them as I think they are poorly designed and built. I would much rather spend $500 more and get a high quality well designed trike such as Catrike. So many TT owners admit that they regret not buying a better quality trike. For me personally there is absolutely nothing about the Rambler that appeals to me. It would have been a good candidate for a book entitled “unsafe at any speed”.
From here on everything which appears in this article is someone else’s writings and not mine.
$3,499.00 … 750 watt Falco hubmotor with 2 mph reverse and crawl forward from a dead stop feature
Drive System Derailleur, Falco 750W 5 Phase Motor
Battery Type/Weight Li-Ion / 36V / 11.6 Ah / 417 Wh
Max. Assisted Speed 20 mph
Range 97 km (60 miles)/Charge
Frame Chromoly steel
Rims/Wheels TerraTrike Black Double Wall
Tires Schwalbe Energizer 20 X 1.75
Crankset Driveline Durabi 400 170mm
Bottom Bracket RPM Sealed Square Taper
Chain KMC Z72 8-speed
Front Derailleur MicroSHIFT Triple
Rear Derailleur MicroShift 8-speed
Cassette/Rear Cogs SRAM PG-830 11-30, 8-speed
Shifters Microshift Mezzo Trigger
Brake Levers Promax Linear Pull, Locking
Brakes Avid BB7 Mechanical
Pedals Comfort Pedal
(subject to change without notice)
TerraTrike’s Electric Vehicle Option (or “E.V.O.” for short) will transform the way you ride and will increase your range by degrees of magnitude. It will allow you to climb hills that were previously daunting, it will keep you spinning through rolling terrain. The Rambler E.V.O. is not intended to be an electric trike. The E.V.O. was designed to help you along your journey while you still get the cardio benefits of trike riding. You will hear and feel the motor turning on and off as it senses your need for assistance. You will still be shifting the trike as you normally would; as the hills get steeper or as you come to a stop.
With a generous range of up to 60 miles per charge, 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.
TerraTrike figured out the ideal torque sensor setting and assist level so that it is very predictable and optimized for assistance and range. The top speed is governed at 20 mph. The Rambler E.V.O. motor control accessories available are ‘Wired Plus Minus (WPM)’ ‘Wired Console’ and ‘Wireless Console with Plus Minus’. The trike will still be limited to 20 mph, but you will be able to adjust the level of assist (low, medium, or high) or you can put it into one of three regenerative modes which actually charges the battery on long descents.
The optional Wired Plus Minus (WPM) switch also adds a reverse gear. You will need to back pedal while it is backing up due to the drivetrain of the trike. But don’t worry, max speed in reverse is 2 mph. The WPM accessory can also help climb hills by providing a “crawl” feature. It too is limited to 2 mph and is merely intended to get the trike rolling so that you can begin your pedal stroke. After the trike starts to move and you start to pedal you can let go of the plus button and the motor assist will kick in as appropriate.
– Electric Assist Hub: The E.V.O. is available in a traditional deraillured system external hub with electric assist
– Direct steering: Horizontal handlebar position provides responsive leverage to steering inputs, and provides a tight turning radius
– Steering stack with bushing/bearing combination for smoother steering
– Chromoly steel frame is lightweight, smooth riding, and capable of supporting up to 300 pounds
– Comfort mesh seat for extra lateral support
– Simple operation, seamless experience
– Powerful 750W direct-drive hub motor
– No pedal resistance when battery isn’t used
– 5 phase motor provides more torque & power
– Up to 1000 recharge cycles per battery
– Industry-leading 5 year motor warranty
Although the following is not a very recent article it is still helpful …