Cyrusher Rumble Step-Thru Fat Tire E-Bike - US-Rumble-WH
Meet Rumble—a comfortable, confidence-inspiring step-thru fat-tire e-bike built to make every ride easy. The low step-thru frame welcomes you aboard, the suspension fork and high-volume 4" tires smooth out chatter, and hydraulic disc brakes keep stopping predictable. A reliable 500W rear hub motor (65 Nm) paired with cadence-based assist delivers smooth power up to 22 mph, while the 48V 18Ah (864 Wh) battery supports up to 80 miles of real-world range. With a 350 lb payload, Rumble is ready for commutes, errands, and weekend path rides—without the intimidation.
Features
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Step-thru frame for easy on/off and confidence at every stop.
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20×4.0" fat tires + suspension fork = calmer rides on pavement, gravel, and light trails.
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500W (65 Nm) hub motor with cadence sensor for smooth, intuitive assist up to 22 mph
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48V 18Ah / 864 Wh battery for up to 80 miles per charge.
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Hydraulic disc brakes and 6061 aluminum frame for control and durability.
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Payload: 350 lb; recommended height: 5'1"–6'2"; bike weight w/ battery: ~70.3 lb.
What our Experts Think
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Easy Step-Thru Frame
Low-step design allows effortless mounting and dismounting for riders of all sizes and abilities.
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Fat Tires for Maximum Grip
Extra-wide tires provide stability and traction on sand, snow, gravel, or city streets.
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Powerful Motor & Extended Range
Robust motor and long-lasting battery make commuting, errands, and weekend rides smooth and reliable.
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Comfortable, Controlled Ride
Suspension and ergonomic geometry reduce fatigue while maintaining stability on rough surfaces.
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Safety You Can Trust
Hydraulic brakes and integrated lighting enhance stopping power and visibility in all conditions.
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Bold, Modern Design
Clean white finish emphasizes a stylish, standout look without compromising functionality.
Q&A
Q: What is the Cyrusher Rumble?
A: The Cyrusher Rumble is a step-thru fat tire electric bike designed for stability, comfort, and all-terrain performance.
Q: What are its key features?
A: It offers extra-wide fat tires, a powerful motor, long-range battery, step-thru frame for easy mounting, and durable construction for versatile riding.
Q: Who is this e-bike for?
A: Ideal for riders seeking a stable, comfortable e-bike for beach, snow, trails, or urban commuting, in a sleek white design.
Q: How do the fat tires improve riding?
A: Fat tires provide superior traction and balance, absorbing bumps and making it easier to navigate sand, snow, or rough terrain.
Q: Is the Rumble beginner-friendly?
A: Yes — the step-thru design, pedal assist, and intuitive controls make it easy for both beginners and experienced riders to enjoy.
Maintenance Tips
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Clean & Protect: Wipe down the frame, tires, and drivetrain after muddy or wet rides to prevent corrosion and maintain the white finish.
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Fat Tire Care: Check tire pressure regularly; proper inflation ensures traction, comfort, and battery efficiency on all terrains.
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Drivetrain Maintenance: Lubricate the chain and inspect gears for smooth, reliable shifting.
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Brake Safety: Monitor hydraulic brake pads and rotors for wear to ensure strong, consistent stopping power.
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Battery Care: Charge with the original charger, avoid deep discharge, and store in a cool, dry environment.
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Suspension & Component Checks: Inspect the suspension (if equipped), tighten bolts, pedals, handlebars, and seat post regularly.
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Electrical System: Keep display, lights, and cable connections dry and check for damage.
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Storage Tips: Protect your e-bike from weather and UV exposure with indoor storage or a quality bike cover.
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Professional Tune-Ups: Schedule periodic servicing to maintain performance and reliability, especially with frequent or off-road use
