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Strengths & Weaknesses

Designed for: Gravel and Mixed Terrain

Strengths

WeightGreat

39 lbs vs 74 lbs avg

Water resistanceGood

IP54, splash resistant

Speed-to-weight ratioGood

0.40 mph/lb vs 0.37 mph/lb avg

Weaknesses

Watt Hours↓ 75%

209Wh vs 823Wh avg

Motor power↓ 67%

250W vs 747W avg

Energy density↓ 51%

5.4 Wh/lb vs 11.0 Wh/lb avg

Top speed↓ 41%

16 mph vs 26 mph avg

Compared with 67 similarly priced models ($824–$1,374), from manufacturer specs.

Performance Overview

Where it stands among 67 similarly priced e-bikes ($824–$1,374), from manufacturer specs. 50% is mid-pack.

PowertrainBattery& RangeComponentsRideComfortUtility
How to read this

Each spoke shows where this vehicle ranks among similarly priced e-bikes: 73% means it beats 73% of them in that area. Rankings come from spec scores computed on fixed scales from manufacturer numbers (the small "spec" value, out of 100), so a high percentage means strong for the money, not perfect. The gray ring and ticks mark mid-pack.

At a Glance

The Fiido C21 is a gravel electric bike listed at $1,099. Manufacturer specs put it at 250W of rated motor power, a 209Wh battery, a claimed 62 mile range, and a 16 mph top speed, at 39 lbs.

Next to the 67 other electric bikes in its price band ($824–$1,374), its strongest numbers are weight (39 lbs vs 74 lbs avg) and speed for its weight (0.40 mph/lb vs 0.37 mph/lb avg). The tradeoffs are battery capacity (209Wh vs 823Wh avg) and motor power (250W vs 747W avg). Beyond the headline numbers it brings an IP54, splash resistant ingress rating.

Full Specifications

Fiido C21

Powertrain

Motor Type
Hub Brushless
Nominal Power
250 W
Torque
22 Nm
Sensor Type
Torque
Assist Levels
5

Battery & Range

Watt Hours
208.8 Wh
Voltage
36 V
Claimed Range
62.1 mi100 km
Battery Position
In Frame

Components

Front Brake
Hydraulic Disc
Rear Brake
Hydraulic Disc
Brake Brand
Tektro
Gears
9
Puncture Protection
EN 15194

Ride Comfort

Front Suspension
Rigid

Utility

Weight
38.6 lbs17.5 kg
Max Load
264 lbs119.7 kg
Fenders
Kickstand
IP Rating
IP54
Lights
Display
Color LCD
Connectivity
Bluetooth
App Compatible

Classification

Category
Gravel
Top Assist Speed
15.5 mph24.9 km/h

Wheels & Tires

Wheel Size
700c
Tire Size
700x40C
Tire Brand
CST

Frame & Geometry

Frame Style
Step Over
Sizes
M, L, XL

Frame & Geometry

MeasurementMediumLargeX-Large
Seat Height (min)34.84"88.5 cm36.22"92 cm38.58"98 cm
Seat Height (max)41.14"104.5 cm44.49"113 cm46.85"119 cm
Standover Height31.5"80 cm32.76"83.2 cm34.57"87.8 cm
Overall Length70.47"179 cm70.87"180 cm71.46"181.5 cm
Stack597 mm618 mm660 mm
Reach402 mm411 mm428 mm
Stack/Reach Ratio1.491.501.54
Top Tube Length585 mm600 mm630 mm
Seat Tube Length510 mm550 mm610 mm
Seat Tube Angle73°73°73°
Head Tube Length150 mm170 mm190 mm
Head Tube Angle71.5°72°72°
BB Drop68 mm68 mm68 mm
Chainstay Length445 mm445 mm455 mm
Wheelbase1066 mm1077 mm1106 mm

Rider Fit

Medium
5'3" – 5'9"160 – 175 cm
Large
5'7" – 6'5"170 – 196 cm
X-Large
6'5" – 6'9"196 – 206 cm

Rider Fit Notes

None yet.

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