Fiido E-Gravel Bikes – C21 & C22: A Breakthrough in E-Gravel Biking

Sleek, versatile, responsive, customizable, adventurous

Ah, the wonders of technology, bringing us even closer to exploring our ever-changing world. As an adventurer, I appreciate a good vehicle that takes me off the beaten path, and Hong Kong's Fiido has managed to create just that with their 2023 E-Gravel bikes, the C21 and C22. These bikes, stepping away from their usual folding commuter designs, are geared towards urban explorers and those who crave a little more excitement.

These beauties boast a sleek and stylish design with smooth-welded frames. Equipped with a 250-W rear-hub motor and five levels of pedal-assist, they are perfect for navigating both city streets and more challenging terrain. Although the motor's top speed is on the lower side for the US market, it meets international regulations and can be unlocked for extra assistance.

I'm quite impressed with the torque sensor on the C21 and C22 models. This feature, similar to the one on Fiido's X folding ebike, offers a more responsive assist thanks to the company's fine-tuned algorithms. The 9-speed gearset provides flexibility for various surfaces and inclines, making it ideal for explorers like me.

The non-removable 208.8-Wh downtube battery may seem a bit lackluster, but Fiido claims it can cover up to 50 miles (80 km) at the lowest PAS level. Not too shabby, if you ask me.

With only slight differences between the C21 and C22, they cater to different preferences in frame style and handlebars. The bikes come with an IPS display, compatibility with a mobile app, and can even be paired with the Fiido Mate cycling watch for proximity power-on and other useful features.

These E-Gravel bikes come equipped with 27.5-inch wheels and 700/40C gravel tires, suitable for city commutes and urban adventures alike. Hydraulic disc brakes provide reliable stopping power, and the adaptive headlight and tail-light ensure visibility.

Priced at $1,599 each, the C21 and C22 are solid choices for those seeking to tackle both urban landscapes and rugged terrain. The various accessories available make them even more versatile and customizable. All in all, these bikes could be the perfect companion for any modern-day explorer looking to experience life at its fullest.


  1. Sleek design: The smooth-welded frames on the C21 and C22 models provide a stylish and attractive look.
  2. Versatility: The E-Gravel bikes are designed for both urban and off-road environments, making them suitable for a range of activities.
  3. Responsive torque sensing: The Mivice S200 torque sensor, tuned with Fiido algorithms, allows for more responsive pedal-assist, adapting to the rider's power input.
  4. Customization: With slight differences in frame style and handlebars between the C21 and C22 models, riders can choose the option that suits their preferences.
  5. Fiido Mate cycling watch compatibility: The watch offers added convenience with proximity power-on and on-wrist health monitoring, as well as recording fitness and ride data.
  6. Safety features: The adaptive headlight, tail-light, and hydraulic disc brakes provide increased safety for riders.
  7. Accessory options: The availability of additional accessories, such as a spare bottle battery and rear cargo rack, enhance the bikes' versatility and functionality.


  1. Lower top speed: The motor's top speed of 15.5 mph (25 km/h) may be on the lower side for the US market, although it can be unlocked for assistance up to 20 mph.
  2. Non-removable battery: The 208.8-Wh downtube battery is not removable, which may be inconvenient for some users, particularly when it comes to charging.
  3. Limited battery capacity: The battery capacity may be considered underwhelming in comparison to other ebikes on the market, which could affect the range and performance for some riders.
  4. Frame size limitations: The C22 model is only available in a small mid-step frame, which may not accommodate all riders.
  5. Price: At $1,599 apiece, the C21 and C22 models may be considered expensive for some potential buyers, especially when compared to more budget-friendly options on the market.
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