Cyrusher Rumble 2.0 Step-Thru Fat Tire E-Bike

The Cyrusher Rumble is a confidence-inspiring step-through electric bike designed to make every ride feel easy, smooth, and approachable. Powered by a 500W rear hub motor with 65 Nm of torque and a 48V 18Ah battery, it delivers reliable assistance and real-world range for daily riding, errands, and light trail exploration. Its low step-through frame, 20 x 4 in fat tires, and front suspension fork work together to reduce fatigue and improve stability across pavement, gravel, and uneven surfaces. With hydraulic disc brakes and a tuned pedal-assist system, the Rumble offers predictable control and comfortable performance for riders who want an inviting, stress-free e-bike experience.

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Key Features

• 500W brushless rear hub motor with 65 Nm of torque

• 48V 18Ah lithium battery for extended everyday range

• Low step-through aluminum frame for easy mounting and dismounting

• 20 x 4.0 in puncture-resistant fat tires for stability and comfort

• Front oil and spring suspension fork to absorb bumps and chatter

• Hydraulic disc brakes, 180 mm front and rear

• Shimano 7-speed drivetrain for versatile riding

• Color LCD display with speed, battery, and assist data

• Half-twist throttle for smooth acceleration

• Upright riding geometry for relaxed, confident control

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Specs

• Battery: 48V 18Ah lithium battery

• Motor: 48V 500W brushless rear hub motor, 65 Nm torque

• Range: Up to 58 miles (94 km)

• Top Speed: Up to 22 MPH in PAS

• Charging Time: 6 to 7 hours

• Battery Life: Up to 800 charge cycles

• Display: 3.5 in color LCD smart display

• Sensor: Cadence sensor

• Tires: Chaoyang 20 x 4.0 in puncture-resistant fat tires

• Brakes: Fully hydraulic disc brakes, 180 mm front and rear

• Front Suspension: Oil and spring suspension fork with adjustment

• Frame: 6061 aluminum alloy with internal battery

• Drivetrain: Shimano 7-speed

• Crankset: 170 mm forged 52T aluminum

• Weight: 70.32 lb (31.9 kg) with battery

• Rider Height Range: 5'1" to 6'2" (155 to 190 cm)

• Payload Capacity: Up to 350 lb

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Shipping

Ships free! Please email us at [email protected] for a delivery ETA or to confirm shipping details.

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Why You’ll Love It

The Cyrusher Rumble is designed to remove hesitation and replace it with confidence. Its step-through frame and upright geometry make getting on and off easy, while fat tires and suspension smooth out rough roads and paths. The tuned motor assist feels natural and predictable, helping hills and headwinds disappear without overwhelming the ride. If you want a comfortable, stable, and welcoming e-bike that makes every journey feel simpler, the Rumble is built for you.