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Ecotric 48V Fat Tire Portable and Folding Electric Bike with LCD display - FAT20S900

Save $229.01 Save $229.01
Original price $1,199.00
Original price $1,199.00 - Original price $1,199.00
Original price $1,199.00
Current price $969.99
$969.99 - $969.99
Current price $969.99

Free Shipping on All Orders (3-5 Business Days)

The Fat 20 48V is a comprehensive upgrade of the Fat 20 36V in an entire power system. Overall upgrade from three aspects - display, gears, and battery.

First of all, the S900 smart LCD is the most intuitive change. Much information, such as current speed, remaining battery, and mileage, will be displayed in real-time so that you can clearly understand the current status of your ride. Secondly, the pedal assists and throttle of Fat 20" 48V have five-speed modes to choose from, which meets the diverse needs for speed. Finally, we also upgrade the battery from 12 Ah to 13 Ah, let you enjoy a longer-lasting ride. Get the Fat 20 48V, enjoy a better life with ECOTRIC®!

To learn more about the manual of this bike, please click here.


  • MODEL SIZE: 1780*620*1120mm
  • MOTOR: Rear Hub 48V 500W
  • BATTERY: 48V 13AH
  • CHARGING TIME: 5-8 Hours
  • DISPLAY: Ecotric Smart LCD
  • SENSOR: Speed Sensor
  • BATTERY LIFE: 400-600 Cycles
  • REAR BRAKE: Mechanical Disc 160mm Rotor
  • FUNCTIONS: Pedal Assist On-Demand Throttle
  • FRAME: Aluminum Alloy
  • TIRES: 20×4.0' Fat Tires
  • FENDERS: Included, Front And Rear
  • FRONT BRAKE: Mechanical Disc 160mm Rotor
  • BRAKE SYSTEM: Left Brake For Rear/Right Brake For Front
*Ecotric Bicycles Set Speed Limit According To United States Federal Regulations, Maximum Speed In Power Mode Is Programmable And Can Be Adapted To The Local Regulations Of Any Country.

*All Range Estimates Are Contingent Upon Rider And Towing Weight, Wind Speed And Terrain.

Customer Reviews

Based on 12 reviews
anna thatcher
Bike for husband's bday

he really likes it

Bill Mattocks
Another nice Ecotric product...

This is the fourth Ecotric bike my wife and I have purchased. First was my Lightning, a really nice and powerful ebike. Then we ordered two Tornado e-mountain bikes. Those are FANTASTIC! We love those two bikes. Now I've decided to go a slightly different direction and have purchased this one. I love it already and only have 42 miles on it. It's great fun to ride and serves a different purpose than any of the others. I purchased this one on Amazon (but still from Ecotric) at an excellent price. Another great Ecotric ebike! When someone asks for my recommendation on ebikes I always suggest that they look into the Ecotric line first just based on their quality and price. Hard to beat an Ecotric deal in a head-to-head comparison.

Bruce Smith
Great purchase

E Bike order was filled and delivered very quickly. Easy assembly, no missing or damaged parts. Folding 20” Ebike was purchased to travel on the back of my motorhome and provide auxiliary transportation at campgrounds and National Parks. Very impressed with the power of the 500 watt motor, especially up the hills. I was so satisfied I just put in an order for another one.

Alina Yakubova
You get what you pay for

The bike is gorgeous and seems well made. The handles are a beauty and the seat is fantastic. I love the fact that the bike folds easily. I have been able to explore all sorts of places since purchasing this bike. But there are several issues I had to deal with so far:
* The assembly instructions that come with the bike are garbage; you have to find a video on youtube to get the bike assembled. You will need more than one person to assemble the bike. Just so you know.
* Then there is an issue of brakes that in my case failed 200 miles into owning the bike. I had to have my rear brake replaced and now my front brake is acting up. The bike tech who replaced the brake told me they have replaced brakes on several Ecotric bikes, and it's a problem because of the multiple shortcuts made in the design. I think that almost $1000 would buy you a decent e-bike, but not according to Ecotric.
* The Pedal Assist seems to be all over the place. On a different day you get a different output at the same levels of pedal assist. No rhyme or reason for it.
* Getting a hold of anyone by phone is nearly impossible. I once had to call 17 times in a row to get a human to ask for advice on which model of Ecotric to purchase. I don't know why customer service is this bad. It shouldn't be. This isn't China, after all. I am afraid that should the bike require technical support, it will be an exercise in futility.
The bike is heavy even when you remove the battery, but it is liftable and packable. I am holding onto the hope that I won't have issues that can't be resolved for a while. This is a new bike.
Before committing to this bike, check out the Facebook group for Ecotric owners and read every post. That will allow you to see what you can expect and if the price is worth it.

Paul Paquette
Great E Bike

My wife decided to buy an E bike after selling her scooter. She reviewed many bikes and decided on Ecotric for features and price. it arrived fairly fast and I followed the YouTube video to set it up, which was fairly easy, She really enjoyed it. I tried it and I really liked it was well. I then decided to buy also. However, I bought the 48V instead of my wife's 36V bike, as I am quite a bit larger than she is. I thought the bike would use a lot more of the battery life with my added weight. The battery of the 48V is definitely more robust if you are a larger person, otherwise the 36V is more than enough. The other differences with the 48V is you get a display that shows your battery power, your assist speed and a odometer. The 48V has 5 assist speeds and the 36V has 3 assist speeds. Both have a 7 gear Shimona derailleur which is excellent. Both bikes are very well made and I think they are a very good quality for the money. We are also able to fold them and I can get both of them in the back of our SUV, even with luggage. Their is no need for a bike rack. They also have fat tires, so that if you go over sandy areas or lawns, you have much better traction that the typical narrow bike tires. The 48V also comes with a free rear storage rack. I did put that on my wife's bike as she likes to bring her purse or bag for her phone. If you have questions or need assistance, Jay has been very responsive. I would definitely recommend this bike in either 36V or 48V setup.