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Challenger Plus I-PAS

Rattan Challenger Plus Ebike 

For its super long 40-70 mileage and only 50lb lightweight, our Challenger Plus becomes an optimal choice for commuters and e-bike beginners.

It applied our patented e-bike technology,I-PAS(Intelligent power assist system). Comparing to the traditional control system it saves more than 50% of electric power. It also has the regenerative feature in which you can charge the battery while pedaling.

Equipped with a Full-Color LCD display with all the essential electronic feedback, including current speed, average speed, top speed, odometer, trip meter, pedal assist level and more. You can even control the output power of the motor in 3 working modes.

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Get $200 OFF when you purchase 2 bikes with code: BUY2EBIKES

RT918 Intelligent LCD display

This intelligent color LCD display provides you with all the infomation you need when you riding. Including battery power, current speed, pedal assist level, and travel distance. When the battery start self-charging while you riding downhill, The charged amount will also be displayed on it. We also consider that the rider may ride in the dark, the light-sensing device on the display will automatically turn on the backlight.


The battery is one of the most important parts of an electric bike, so we only use the Samsung brand cells to ensure the long life and high safety. We offer a 3- Year Warranty to this great battery. With our I-PAS technology (Self-charging), this battery will help you to reach 50-80miles+ range per charge. When fully charged, the battery lights are 3 green 1 red.


As the most important part of the IPAS system, we changed the internal structure of the motor so that it can generate electricity when the rider goes downhill or gliding, providing additional energy to the battery. Of course, it also has the function of a general motor. With this 350W high speed brushless gear motor, you can reach to the top speed in 15s. It will provide you with 45Nm of torque to help you conquer most of the rugged terrain. And this motor is very friendly to those beginners who just start riding with Ebike. 


With these front and rear mechanical 160mm disc brakers, you can stop the bike in a more effective way, even in loose terrain. Stop faster when it counts the most. The mechanical disc brakers are currently the more popular type of disc brake for the average mountain biker. One of the main perks of the mechanical disc brake is that the cables are far easier to install and they work more efficiently.


A 7-speed bike is a great bike for a person who rides on tricky terrain. It’s main purpose is to let the bike adapt to rough conditions and accommodate inclines, bumps and other difficulties. On a 7-speed bike, the lower gears make it easier to pedal and the higher gears allow for better movement going downhill. Compared to a 3-speed bike, a 7-speed is preferable for a rider who travels on varying terrain.

With this Shimano 7-Speed Classic Transmission System, you can easily increases hill-climbing power, further range variation, and greater terrain adaptability. You can adjust suitable speed to complete your journey.

Shimano MF-TZ500 7speed 14-28 TOOTH FREEWHEEL

The 7 speed, 14-28 free wheel means you can shift to a larger cog for uphill riding, downshift to a smaller cog at high speeds. This greatly increases the comfortable performance of the bike on hilly terrain. Multiple geared bikes also require replacement gears less often, because abrasion is distributed among multiple chainrings rather than a single chainring.

buy with confidence!

Fast Free Shipping from the US. (3-7 business days)
2-Year All-Inclusive Warranty: We stand behind our products with confidence!
Consumer Direct: We gave up the traditional business model, no middlemen earned the difference.
Best Customer Service: We've developed a professional after-sales team, any product issues or advice, please feel free to contact us at:
Fast & easy Assembling: We did most of the assembly for you! Here is the Assembling Video On Our Youtube Channel