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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 12.5 Ah, letting you enjoy a longer-lasting ride. Get the Fat 20 48V, and enjoy a better life with ECOTRIC!


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 12.5 Ah, let you enjoy a longer-lasting ride.
Max Speed: 20 MPH

- Strong power for higher speed
- High efficiency to run farther
- Much quieter, lighter, smoother
- Responsive acceleration

- High energy density
- 400-600 cycles service life
- Travel range 23-28 miles in pure electric mode and 44-48 miles in pedal mode

High quality, Seven-speed transmission

- The normal front fork is upgraded to the shock-absorbing front fork
- Normal saddle tube upgrade to shock absorber with fold-over saddle tube
- S900 upgrade to M3 meter (meter plus headlight switch function)
- headlamp

- Heavy-duty 20" x 4" fat tires
- Adapt to sand, snow and other complex terrain

- Portable and adjustable upper tube, the handlebar stem, even the pedals
- Put it in the trunk
- Take it to the elevator
- Take it to the subway
- Take it to the bus

UL has been around for 125 years ensuring the safety and accountability of electrical products in everyday American life. Being UL certified illustrates a businesses’ dedication to consumer safety, as well as the quality of their products. Another important caveat of UL certification is for insurance purposes and customer security. It’s a true indication of an item’s safety and longevity.
- Strong power for higher speed
- High efficiency to run farther
- Much quieter, lighter, smoother
- Responsive acceleration
- High energy density
- 400-600 cycles service life
- Travel range 23-28 miles in pure electric mode and 44-48 miles in pedal mode
High quality, Seven-speed transmission
- The normal front fork is upgraded to the shock-absorbing front fork
- Normal saddle tube upgrade to shock absorber with fold-over saddle tube
- S900 upgrade to M3 meter (meter plus headlight switch function)
- headlamp
- Heavy-duty 20" x 4" fat tires
- Adapt to sand, snow and other complex terrain
- Portable and adjustable upper tube, the handlebar stem, even the pedals
- Put it in the trunk
- Take it to the elevator
- Take it to the subway
- Take it to the bus
UL has been around for 125 years ensuring the safety and accountability of electrical products in everyday American life. Being UL certified illustrates a businesses’ dedication to consumer safety, as well as the quality of their products. Another important caveat of UL certification is for insurance purposes and customer security. It’s a true indication of an item’s safety and longevity.







FAQ
What size should I get?
The frame size for each model is posted on the respective bike’s page. Just take a look at the Specifications section down towards the bottom of each page.
Do bikes ship fully assembled or are assembly required?
Your bike will arrive about 95% assembled. The only assembly you will need to undertake is to put on the front wheel, install the handlebars, screw on the pedals, attach the fender and the front light, and you are good to go! The whole process should not take more than 30 minutes, and no special skills or tools are required. Any small tools required are included with the bike
What is an electric bicycle, and how do I operate one?
An electric bicycle is essentially a regular bicycle equipped with an electric motor that is designed to make the ride more enjoyable. Most can operate in three modes:
1.Pedal-Only – The bike is ridden just like a regular bicycle, powered only by the rider.
2.Pedal-Assist – The onboard computer activates the motor only when the pedals are turning in order to assist the rider. This mode makes it easier to pedal up hills and against the wind or to go faster on flat ground. The rider can control the level of assistance received from the motor by adjustments to the display unit mounted on the handlebars.
3.Throttle – The rider simply twists the throttle to engage the motor and start moving (similar to the operation of a moped). No pedaling is needed when using the bike in this mode, making it great for taking a break without necessarily having to stop traveling.
Is the bike waterproof?
While our bikes aren't fully waterproof and should not be submerged in water, generally speaking they are very water resistant and can be hosed down and washed like any other bike. The battery, motor and display are fully sealed and can resist rain, snow and being hosed down after a ride. Like any bike, you'll need to make sure to keep your chain lubed and well cared for to ensure optimal performance.
What is the top speed and range of your bike? What is the battery lifespan?
The top speed is about 20 mph. And the battery would last about 18 to 20 miles with the throttle for one full charge. The battery can hold up to 400 to 600 times of discharging and recharging.
Does your bike comes with a battery and charger? Do you need to buy the battery separately?
All bikes come with a new battery and charger. If you need to buy an extra battery, you can place an order for the extra battery on our website.
Do your bikes come with throttle and pedal-assist?
All bikes have both throttle and pedal-assist. You can choose to use either of them when you riding.
When do you ship the order if I place the order today? When will my order be delivered?
Shipping time varies from 2-3 business days and delivery time varies between 6-8 business days if your product is in stock.
What Is Covered Under Warranty?
Our warranty covers the frame, motor, battery, controller and display for 18 months. The other parts of the bike are subject to wear and tear and are not covered under warranty, but you can expect to receive full support from our customer service team to assist with any and all repairs, including access to replacement parts at cost for the life of the bike.