Fiido M21 Fat Tyre Electric Bike With Torque Sensor


Buy directly from Fiido UK

Buy directly from Fiido DE

Buy directly from Fiido US

The Fiido M21 Fat Tyre Electric Bike With Torque Sensor has a built-in torque sensor to better understand your sporting needs and bring you a more enjoyable sports experience.

With a strong 500W motor, paired with a wide-range 7-speed derailleur, this ebike is able to reach a top speed of 40km/h.

Thanks to it's 20*4-inch wheels and anti-skid tread pattern, the Fiido M21 is able to take you through several different terrains.

*This eBike has a motor output exceeding 250w and speed assistance exceeding 15.5mph. This eBike cannot be used on UK public roads **See below for more info.


Long RangeSuspensionOff Road

Buy the Fiido M21 Fat Tyre Electric Bike With Torque Sensor

Click the button below to buy the Fiido M21 Fat Tyre Electric Bike With Torque Sensor directly from our trusted partners at Fiido!

Not sure which e-bike is for you?

We know the world of e-bikes can be overwhelming but, fear not, we are here to help you! You can take our handy e-bike quiz which will recommend the best e-bike for you based on your answers to a few questions. In under 2 minutes, you can have the perfect e-bike at your fingertips!

The Fiido M21 at a glance

If nothing else, know these four things!

The ideal rider is...

Anyone between 155cm-200cm tall and weighing less than 120kg.

The Fiido M21 is perfect for...

Crushing the commute and off road trails a like. The suspension, fat tyres and powerful motor make the M21 formidable off road!

Speed and power

The Fiido M21 has a top speed of 24.8mph and max power output of 500W, which means it is not legal on public roads and foot paths in the UK.


Like any geared bike, regular servicing will keep the M21 in top form for years to come. If you take it off road, give it a clean and remove any debris.

Buy the Fiido M21 Fat Tyre Electric Bike With Torque Sensor

Click the button below to buy the Fiido M21 Fat Tyre Electric Bike With Torque Sensor directly from our trusted partners at Fiido!

The Electroheads top three favourite features of the Fiido M21

We love these three things!


The M21 might be on the larger size but it folds down easily for travel and storage.
A large battery

A large battery

The Fiido M21 has a powerful 48v/11.6ah battery which provides a claimed 62 miles of range.
Suspension and tyres

Suspension and tyres

The Fiido M21 couples 20" x 4" fat tyres with a great front fork suspension. This setup make any terrain a breeze to ride across.

About the brand: Fiido

Fiido is more than an E-mobility brand – it's a passion-driven team founded in 2017 that refuses to settle for mediocrity. With over 200 members from diverse backgrounds, including China, the US, and France, Fiido thrives on playing with wild ideas while maintaining expertise in design and technology. Their commitment to innovation is evidenced by a professional R&D team, exclusive technology patents, and a rigorous testing lab. Boasting 350,000+ satisfied users, Fiido goes beyond providing E-bikes and E-scooters; it offers a full-service support system from industry experts and a dedicated after-sales team. Constantly evolving communication channels, including Facebook groups and co-design communities, showcase Fiido's dedication to creating value for its users.

Frequently asked questions

Delivery times vary based on delivery destination, brand and product.

For detailed information regarding the shipping of this item, please view the "Shipping and Warranty" dropdown above.

If you would like to review our full shipping policy, please click the link here

The level of warranty support is dependent on each brand and product.

For details on the warranty associated with this product, please view the "Shipping and Warranty" dropdown above.

If you would like to contact us, please send us an email at

Our customer care team will respond to you as quickly as possible!

Yes! We partner with both Payl8r and Klarna.

You can split the cost of your order by up to 12 months with Payl8r. For more informoation, please click here.

If you prefer to use Klarna, you can split the cost of your order in three, interest free!

Yes! Electroheads has partnered with Laka Insurance to provide affordable e-bike insurance. Shopping at Electroheads also gets you 30 days free insurance with Laka! Please click here for more information.

Nowadays, most of your local bike shops will be able to service and repair your e-bike if something goes wrong.

The brake systems, wheels, tyres, pedals and cranks on e-bikes are mostly no different from regular push bikes.

If you need further support, please contact us at

Join our growing base of happy customers:

Andrew FellasEstarli e20 - Verified Buyer

Electroheads' social media reviews are not only accurate, they are very helpful & enjoyable to watch. This led me to making a purchase via their website, the service I received was excellent and the item arrived on time. I would thoroughly recommend Electroheads.


Aris DonahueEstarli e28 - Verified Buyer

I took a look at the tenways, but I ended up going for a Estarli e28 pro - pretty simliar price and specs.


Daniel HogarthJeep Camou - verified buyer

The jeep camou 2xe has been a game changer. I love riding it, and I'm saving money on fuel. The scooter is fantastic, and the service from Electroheads was great, and the product arrived promptly.