Fiido M21 Price & Specs: Torque-Sensor Fat-Tyre E-Bike
A fat-tyre bike with a published torque sensor — rare for Fiido
Fiido · Fat-tire
MSRP $1,299
$1,299
We hold no Fiido code
The 3rd cheapest of the 14 Fiido models currently on sale .
Prices checked September 20, 2026. We publish manufacturer MSRPs, not sale prices — a bike is often discounted below the figure above.
The M21 is Fiido’s cheap fat-tyre bike at $1,299, and the one spec Fiido does publish for it is the one that matters most for how a bike feels: a torque sensor. That is worth more than it looks on a spec sheet. A torque sensor measures how hard you push and scales the motor to match, so the bike accelerates in proportion to your effort; a cadence sensor delivers a fixed slug of power the moment the pedals turn, which feels like a shove. At $1,299 a confirmed torque sensor is not a given, and Fiido publishes torque sensors on fewer of its models than it publishes nothing at all.
By Michał Sowa · Editor
Last updatedOctober 8, 2026 · How we research
Specifications
- MSRP
- $1,299
- Sensor
- Torque sensor
- Type
- Fat-tyre
- Position
- Third cheapest of 14 priced Fiido models
- Our discount
- None — we hold no Fiido code
- Sold in
- US, Europe, UK, worldwide
What Fiido doesn't publish for this model
Motor rating · Claimed range · Top speed · Maximum load · Weight · Brakes · Battery capacity in Wh · Tyre width. We looked for these and couldn't source them, so they're blank rather than estimated. If you need one to decide, ask Fiido for it in writing before you buy.
Who this bike is for
Buy it if
- You want a torque sensor at a low price, which is the spec that most affects ride feel
- You ride broken surfaces where fat tyres are worth the rolling resistance
- You want a cheap Fiido that is a full-size bike rather than the $659 mini folder
- You prefer a confirmed sensor type to an unconfirmed range claim
Look elsewhere if
- You want range or power figures — Fiido publishes neither for this model
- You want a discount: we hold no Fiido code, and Engwe’s L20 2.0 was $699 with 75Nm published
- You need a payload figure, which Fiido states for the T2 and not here
- You ride mostly pavement, where fat tyres cost you speed and range
Alternatives in Fiido's range
| Model | MSRP | Versus this bike |
|---|---|---|
| Fiido C11 City | $1,209 − $90 | The next step down in price |
| Fiido Nomads Touring | $1,539 + $240 | The next step up in price |
Frequently asked questions
How much is the Fiido M21?
The MSRP is $1,299, the third cheapest of the 14 priced Fiido models behind the $659 D3 Pro and the $1,209 C11. We hold no Fiido code, so there is no saving we can offer.
Does the Fiido M21 have a torque sensor?
Yes — it is one of the few specifications Fiido publishes for this model, and the most useful one. A torque sensor measures how hard you are pedalling and scales assist to match, so power arrives in proportion to your effort rather than as a fixed slug when the pedals start turning. At $1,299 that is not something you can take for granted.
M21 or Engwe L20 2.0?
On published information and price, the Engwe. It lists $100 lower at $1,199, was selling at $699 when we last checked, publishes 75Nm of torque and a 68-mile claimed range, has a step-thru frame and comes with our 10% code. The M21’s counter-argument is the confirmed torque sensor, which Engwe does not state for the L20 2.0 — so if ride feel is your priority rather than price, it is a real point in the Fiido’s favour.
Do you have a Fiido discount code?
No. We earn a commission on Fiido through tracked affiliate links, but we hold no Fiido coupon — so buying a Fiido through us pays us and saves you nothing. We would rather say that than let you assume a discount exists. We do hold verified codes for Velotric ($60), Aventon ($60), Himiway ($50), Kingbull ($60) and Engwe (10%), so if price is the deciding factor those brands are where we can actually help.
Our take
The torque sensor is the reason to look at this bike and a legitimate one — it is the single specification that most changes how an e-bike feels to ride, and plenty of bikes at twice the price don’t confirm theirs. At $1,299 that makes the M21 interesting on the one axis Fiido has chosen to disclose. Everything else is blank: no motor rating, no range, no top speed, no weight, no brakes. So you are buying a known ride feel and an unknown bike. The comparison that complicates it is Engwe’s L20 2.0, which lists at $1,199 and was selling at $699 when we last looked, with a published 75Nm of torque, 68 miles of claimed range and a step-thru frame — and a 10% code we can actually apply. Against that, $1,299 with no code and one published spec is a hard sell unless the torque sensor is specifically what you came for. If it is, and the fat tyres suit your roads, this is a reasonable buy at a reasonable price. We hold no Fiido discount code. We earn a commission if you buy through our links, so recommending a Fiido pays us and saves you nothing — unlike every other brand on this site, where a verified code takes $50 to $200 off. Read the verdict above knowing that.