Cyrusher Flex: An In-Depth Look at the Affordable EMTB

The Cyrusher Flex, an electric mountain bike (EMTB) priced at $1599, offers a compelling package for off-road enthusiasts seeking value and performance. Reviewer Chris Crossed highlights its key features and impressive capabilities on challenging terrain.


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Key Features and Specifications:

  • Motor and Battery: The bike is equipped with a powerful 750-watt motor, peaking at 1400 watts, and delivers 95 Nm of torque. It is powered by a 48-volt, 15 Ah battery with LG cells, requiring approximately 7-9 hours for a full charge. The estimated range is around 59 miles, with a more realistic expectation of about 40 miles in practical use.
  • Suspension: A standout feature is its dual suspension system, which includes a Sunour XM30 front fork (approximately two inches of travel) and a Maroka MT100 oil spring dampened shock in the middle. This setup ensures a comfortable ride over varied trails.
  • Gearing and Brakes: The Cyrusher Flex features an 8-speed trigger shifter, a 46-tooth chainring, and a Shimano Altus derailleur. For reliable stopping power, it utilizes Tetra hydraulics with 180mm rotors.
  • Unique Sensor Feature: A notable innovation is the ability to switch between torque and cadence sensors directly on the display, eliminating the need for a separate app.
  • Design and Sizing: Available in blue/black, white/black, and green/black, the bike’s standard frame size comfortably accommodates a six-foot rider. It weighs 68 lbs, is 75 inches long, and has a 28-inch standover height.
  • Tires and Lighting: It features Kenda 27.5 x 2.6-inch rocky tires for traction. The lighting package includes a handlebar-mounted headlight and integrated rear brake lights on the fork ends.
  • Display and Controls: The handlebars include locking grips, a USB port, trigger shifter, hydraulic brakes, and a left-side throttle. The color display provides essential information such as odometer, trip, average and max speed, voltage, current speed, and battery level.
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Performance and Ride Experience:

During speed tests, the Cyrusher Flex reached a top speed of 29 mph. The reviewer conducted a 1.5-mile off-road test on a hilly, rocky trail, where the bike demonstrated its ability to handle challenging terrain, including rocky sections and riverbeds. The dual suspension and responsive torque sensor were particularly beneficial for off-road riding.

Value Proposition:

The Cyrusher Flex is positioned as a highly affordable option, offering excellent value compared to similar EMTBs like the Avaton Ramblas and Velore Summit One, especially considering its features such as dual suspension and the switchable torque/cadence sensor.

Minor Criticisms:

While generally positive, the reviewer suggested that the integrated lights, though a nice addition, might be unnecessary for a bike primarily designed for off-road use, potentially adding to the overall cost.

In conclusion, the Cyrusher Flex stands out as a capable and well-performing EMTB, providing significant value for its price point.