This video from Southcoast Surron showcases the Cyrusher Flex (eMTB), a fully-suspensioned full-suspension electric mountain bike, in an extreme downhill bike park test.
Video Link: Cyrusher Flex Review
Overall Video Summary: Many e-bikes claiming to be “off-road” are only suitable for gravel roads or light forest trails in real-world use. After receiving the Cyrusher Flex, the blogger took it directly to a professional downhill bike park to test its performance and durability in extreme scenarios including jumps, continuous descents, and rugged technical sections. Ultimately, the blogger stated that this entry-level fully-suspensioned electric mountain bike, priced at approximately £1,399, exceeded expectations, with its suspension system and handling fully withstanding the test of extreme off-road conditions.
Detailed Analysis by Time Period
[00:00] Video Opening and Testing Objectives
The blogger points out that many previous tests of “off-road motorcycles” were only suitable for paved or gravel roads. This time, however, he wants to skip the tedious flat-road testing and take the Cyrusher Flex directly to a downhill park for extreme real-world testing.
[02:04] Assembly Experience and Appearance Details
Upon arriving at the bike park, the blogger shared his first impressions:
Assembly was very simple: it only took about 10 minutes to complete the installation and get into riding mode [02:26].
The hardware and materials are of high quality: it uses Logan hydraulic disc brakes (180mm brake discs), Shimano derailleurs, DNM rear shock absorbers, and Kenda off-road tires. The component configuration is very solid for its price range [03:01]. [03:43] Uphill Performance and Dual Sensor Mode Analysis
During the steep hill climb test, the blogger explained the vehicle’s dual sensor (cadence/torque) system:
For the 250W motor (maximum speed limit 15.5 mph) compliant with UK regulations, on rugged off-road sections, the torque sensor intelligently matches power output based on pedaling force, preventing excessive sprinting due to cadence assistance on technical curves or steep downhill sections, providing excellent handling [04:54].
[05:54] Downhill and Off-Road Riding Real-World Test
The video showcases the blogger riding the Cyrusher Flex on downhill trails, overcoming obstacles, and through continuous turns [06:26].
[07:54] Mid-Route Rest and Core Parameter Evaluation
Suspension and Braking: The adjustable front fork and DNM rear suspension performed extremely well, and the hydraulic brakes provided ample braking force [08:05]. Battery and Range: Equipped with a 48V 15Ah battery, the official theoretical range is up to 59 miles. It supports direct charging on the bike or battery removal for charging [08:37].
Practical Details: A USB charging port is located below the dashboard, and the bike integrates headlights and taillights with brake sensing function [09:28].
[10:14] Price and Value Analysis: At the time of video recording, the bike was priced at £1,399 [10:19]. The blogger believes that compared to high-end electric mountain bikes that often cost £4,000-£5,000, the Cyrusher Flex, as an entry-level fully-suspension eMTB, offers extremely high value for money and is fully capable of riding in off-road parks alongside high-end models. [11:06] Summary and Final Evaluation The blogger concluded that he did not hold back because he received sponsorship, but conducted full-speed sprint and jump tests in the mountain park. The structural strength and durability of the Cyrusher Flex withstood the test completely, making it an ideal choice for off-road enthusiasts with limited budgets.