Cyrusher Rumble Step-Thru Fat Tire E-Bike

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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-v olume 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. Quick highlights Step-thru frame for easy on/off and confidence at every stop. 20×4.0" fat tires + suspension fork = calmer rides on pavement, gravel, and light trails. 500W (65 Nm) hub motor with cadence sensor for smooth, intuitive assist up to 22 mph 48V 18Ah / 864 Wh battery for up to 80 miles per charge. Hydraulic disc brakes and 6061 aluminum frame for control and durability. Payload: 350 lb; recommended height: 5'1"–6'2"; bike weight w/ battery: ~70.3 lb. Show more