Overview of Key Content
The reviewer conducted an in-depth test of the Cyrusher Flex, a full-suspension e-bike. This model features 27.5-inch wide tires, an integrated battery, and a powerful rear-hub motor. The reviewer highlighted its impressive aesthetics and build quality, unique dual-sensor riding modes (cadence and torque modes), high-brightness brake/tail light design, and the overall riding experience.
Summary of Pros and Cons
Pros:
Excellent Aesthetics and Build Quality: The bike looks even cooler in person than in official photos;
it boasts high-quality materials and solid construction, with absolutely no rattling or looseness when riding on bumpy roads.
Dual-Mode Sensors (Key Highlight): Supports seamless switching between “cadence mode” and “torque mode,” balancing effortless cruising with a natural riding feel.
Superb Tail Light Design: The tail lights are embedded directly into the frame sides, offering a high-tech look;
they are extremely bright with a highly visible brake light function and excellent side visibility, significantly enhancing riding safety.
Ample Power: Despite its heavy weight, the rear motor delivers strong thrust and noticeable acceleration.
Strong Braking Performance: Equipped with front and rear hydraulic disc brakes;
the lever feel is linear and braking power is robust, greatly increasing confidence during descents and high-speed riding.
Suspension and Comfort: The full-suspension design combined with wide tires effectively absorbs impacts from potholes, gravel, and curbs, ensuring a very smooth ride.
User-Friendly Accessories: Comes with a practical and complete set of assembly tools and a tire pump (including a floor-standing foot pump).
Cons / Areas for Improvement:
Heavy Weight (Main Drawback): The bike weighs approximately 31 kg with the battery (about 27 kg without it), making it very inconvenient to carry, push, or haul up stairs; it also places specific load-bearing demands on bike racks.
Narrow headlight beam: While the headlight is sufficiently bright, the beam is concentrated directly ahead with limited side illumination, restricting visibility when cornering at night.
Manual adjustment required for the center-mounted shock: The stock center shock requires a specialized shock pump to adjust air pressure based on the rider’s weight; otherwise, the suspension may feel too soft or too stiff.
Segmented Summary
[00:00:00 - 00:01:38] Video Introduction and Product Overview
Brief overview of the testing experience: The bike looks better in person than expected, features solid build quality, and offers powerful motor performance.
Key highlights: Offers two distinct riding experiences—“cadence mode” and “torque mode”—and comes equipped with a high-brightness integrated brake tail light and hydraulic disc brakes.
Basic specifications: Full suspension, 27.5-inch wide tires, integrated battery, and rear-hub motor.
[00:01:39 - 00:03:07] Unboxing, Assembly, and Included Accessories
Simple assembly process; only the front wheel and handlebars need to be installed.
Generous accessory package: In addition to basic assembly tools, it includes a highly practical large floor pump (ideal for inflating large tires at home).
[00:03:08 - 00:04:35] Exterior Design and Build Quality
Striking visual presence; the battery is integrated into the frame, and cable routing is clean and tidy.
Sturdy frame and refined paint finish; no rattling noises or sense of looseness when riding on unpaved surfaces.
[00:04:36 - 00:07:16] Lighting System and On-board Display
Tail light (major highlight): Integrated into the rear of the frame; clearly visible even during the day, with significantly increased brightness when braking and excellent side visibility.
Headlight: High brightness, but the beam pattern is relatively narrow.
Display screen: Compact unit located on the left handlebar; clearly shows speed, battery level, assist mode, and other information.
[00:07:17 - 00:12:38] Comparison of the two riding modes (Key highlight)
Switching method: Quickly press the power button three times to toggle between modes.
Cadence Mode [08:29]: As long as the pedals are turning—regardless of the force applied or the speed of rotation—the bike automatically accelerates to 25 km/h. It requires less physical effort but offers a less natural riding feel; ideal for relaxed cruising on flat roads.
Torque Mode [10:01]: Power output is intelligently adjusted based on pedaling force. It provides a very natural, smooth riding experience and superior handling; suitable for city riding, curves, and undulating terrain.
[00:12:39 - 00:16:00] Motor, braking, and suspension performance
Power and braking: The motor offers powerful acceleration, and the hydraulic brakes deliver excellent stopping power, instilling a strong sense of safety.
Suspension system: The full-suspension setup combined with wide tires ensures a very comfortable and stable ride. Note: The mid-mounted shock absorber requires a specialized suspension pump to adjust air pressure according to the rider’s weight.
[00:16:01 - 00:18:19] Battery range and weight-related drawbacks
Battery: 48V 15Ah (720Wh) removable battery; supports charging either while installed on the bike or after removal.
Weight: The total weight including the battery is approximately 31 kg (the battery alone weighs about 3.9 kg).
This may be inconvenient for users living in high-rise buildings without elevators or those who need to lift the bike frequently.
[00:18:20 - 00:20:45] Summary and buying advice
The reviewer gives the bike a highly positive assessment. It is particularly recommended for riders who prioritize comfort, high-visibility lighting, and powerful performance, and who do not need to carry or lift the bike frequently.