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Your position: Home / Ebike / Fat Bear Series
  • Description

    As the very name implies, Fat Bear Ebike shows its strength in both driving force and battery life as strong as a live fat bear. The strength all comes down to the cooperation of a 500w electric motor exclusive for an Intelligent power assist system (I-PAS) and one integrated 48volt,11.6ah battery with Samsung cells. 

    The innovative l-PAS technology transfers the energy generated by the motor back to the generator when riding downhill, braking, or gliding. While the bike doesn't require throttle during these moments, the motor uses the kinetic energy to power the battery.


    Hear feedback from a professional mountain biker


    This 500W I-PAS system dedicated motor provides you with 65Nm of torque to easily power through most rugged terrain. In particular, this motor is an important part of our latest bicycle technology: I-PAS to power the highest mileage in the market.

    Our suspension fork has 60mm of travel and lockout. Combined with the 20*4.0 Chaoyang Fat Tires, you're in for one smooth ride on different terrains.

    Comes with 60mm of travel, preload adjustment, and lockout. Combined with the fat tires, you're in for one smooth ride on different terrain.

    Switch on Cruise Control allows you braking turns off the cruise control and the power is back in your hands. Cruises at the same speed for 5 seconds, the bike will lock into that speed. 


    Frame: 20" allay foldable frame
    Battery: 48V 11.6AH lithium battery with Samsung 18650-29e cells
    Motor: 48V 500W I-PAS system dedicated motor
    Charging time: 4-5 hours
    Est. Mileage: 60 - 80 miles (With I-PAS)
    Brake: Front and rear 180mm hydraulic disc brake with alloy caliper
    Fork: 20inch alloy spring with adjustable and lock out suspension fork
    Rear shock: 1000pd alloy rear shock
    Tires: ChaoYang 20*4.0 all terrain tire
    Display: 48V 4.3inch M5 LCD display
    Transmission: Shimano SL-M310. 8 speed


    + Where do you ship to?
    - We ship to United States. 
    + What's the shipping cost? Do I have to any fees for the shipping, such as VAT, customs fees?
    - We offer FREE SHIPPING to all the countries we ship to. You don't have to pay for any other fees occurs during the shipping.
    + How can I get support if I have questions about my bike?
    - Our dedicated customer service is always ready to help you. To get the fastest service, please send the following information of your order to info@rattanebike.com
    + How can I apply for the warranty?
    - We offer 2 Year Warranty to all of our bikes, please check the Warranty Policy for further details.
    + What's the relationship between Rattan and Yamee?
    Rattan and Yamee are belong to the same company, Rteng LLC. Yamee is the high-end brand under Rteng LLC. Rteng LLC has been dedicated to manufacturing the most price valued E-bikes for the past 10 years. Yamee has two major product lines, Fat Bear Series and XL Series, which were under the brand Rattan.

Fat Bear Plus 500W -- with FREE SHIPPING(Only Ship To US)

✅  FREE SHIPPING & 7- Day Shipping, Grab Today Get Before Christmas
✅  Intelligent I-Pas System Allows Up to 80 Miles Travel Range on A Single Charge
✅  Powerful 48V 500W Motor & 11.6AH Samsung Cells
✅ 20x4.
36% OFF
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