The Fiido D21 electric bike is the upgraded version of the Fiido D11 electric bike and it retains the traditional bicycle shape with a rear motor concealed within the rear wheel and the battery concealed within the seat-post. The main upgrade from the Fiido D11 to the Fiido D21 is the inclusion of a torque sensor, rather than the older model's cadence sensor. Its ultra-lightweight frame lends itself to a product weight of only 12.9kg (17.5kg inc battery). The removable 11.6Ah battery allows for ease of charging and up to 100km range in assist mode.
A lightweight 250w brushless geared motor allows for greater torque, delivering a top speed of 25km/h. Stronger starting torque provides enough power to ensure that the Fiido D21 has no difficulty with hills or cycling upwind.
The 52T crankset and 7-speed Shimano variable gear system allows the rider to switch to higher gears for high-speed riding while the lower gears are suitable climbing uphills in manual mode.
Large 20 inch non-slip, wear-resistant pneumatic tyres are highly suitable for use on uneven surfaces. 1.75 inch wide tyres ensure maximum grip, especially in wet conditions.
The Fiido D21 electric bike comes with the upgraded torque sensor, replacing the cadence sensor seen in the Fiido D11. The more basic cadence sensor uses a magnetic switch in the crank to turn the motor on or off whereas the cadence sensor is a much higher tech device. It uses a high precision gauge to measure the actual force through the pedal, sampling 1,000 times per second, measuring how hard the rider is pedalling, to determine how much power to distribute through the motor. This results in a much smoother take off, more enjoyable ride and also a more efficient use of power.
Do you want more responsive braking? Now might be the time to consider upgrading from standard brakes to semi-hydraulic X-TECH brakes. Their hydraulic calliper allows X-TECH brakes to grip the brake disc more effectively, reducing braking distances and increasing braking reactiveness - they significantly improve the braking quality on more powerful electric bikes.
|Max Incline||25 Degrees|
|Motor Rated Power||250w|
|Transmission||Shimano 7-speed shift|
|Range||100km max assist|
|Charging Time||7 Hours|
|Driving Mode||Torque Sensor|
|Tyres||20 x 1.75 Inch Pneumatic|
|Brakes||disc front & rear|