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Range
58 MILES
Top speed
22 MPH
Battery
48V 18Ah
Motor
500W(65N·m)
Payload capacity
350 LBS
Sensor
Cadence Sensor
Cyrusher Rumble
Step-Through All-Terrain Electric Bike
"Effortless Adventure. Uncompromising Comfort."
The Cyrusher Rumble redefines what a comfort bike can be. We've combined an accessible low step-through frame with an efficient 500W motor and a road-smoothing front suspension fork. The result is a ride that's incredibly easy to get on and off, yet fully capable of tackling bumpy city streets, gravel paths, and light trails. With its responsive cadence sensor and robust fat tires, the Rumble delivers a smooth, stable, and exhilarating experience for riders of all abilities. Adventure is now open to everyone.
This Is The Tool For You If...
- You value comfort and accessibility with a step-through frame design.
- You want a versatile bike that's equally at home on pavement and trails.
- You want a forgiving ride provided by a front suspension fork.
- You desire the stability and all-terrain grip of wide fat tires.
Designed for Your Comfort
Go-Anywhere Fat Tires
The Rumble is equipped with massive 26" x 4.0" fat tires. Their large volume allows you to run lower pressures, creating a huge contact patch with the ground. This not only soaks up bumps for a smoother ride but also provides incredible traction and stability on loose surfaces like gravel, dirt, and even sand. These puncture-resistant tires give you the confidence to explore beyond the pavement without a second thought.
Key Features
Step-Through Frame
The low-step frame makes it incredibly easy to get on and off the bike, boosting confidence for all riders.
Front Fork Suspension
The front suspension fork absorbs bumps and vibrations from the road, providing a much smoother and more comfortable ride.
Comfortable Gel Saddle
The ergonomic, gel-filled saddle is designed to provide maximum support and cushioning, ensuring you stay comfortable even on long rides.
Adjustable Upright Riding
Customize your riding position with the adjustable stem for a perfect, ergonomic fit that reduces strain on your back and shoulders.
Color LCD Display
The full-color display is easy to read in direct sunlight and provides all your key ride metrics at a glance, including speed and range.
See It In Action
Technical Specifications
| Battery | 48V 18Ah |
|---|---|
| Charger | 48V 3.0A |
| Charging Time | 6~7 hours |
| Battery Lifetime | 800 cycles |
| Speed Class | Up to 22 mph on Level 5 PAS |
| Weight | 70.32lbs (31.9 KG) With Battery |
| Range | Up To 58 Miles (94 Km) |
| Motor | 48V 500W 65 N.m Brushless Rear Hub Motor |
| Payload Capacity | 350 lbs |
Mechanicals
| Tires | Chaoyang 26" X 4" Puncture-Resistant Fat Tires |
|---|---|
| Display | 3.5" LCD display, Colorful Smart Computer |
| Brakes | Fully Hydraulic Disc Brakes 180mm Front + Rear |
| Crank Set | 170Mm Forged 52T Alloy Dual-Sided Aluminum |
| Chain | KMC Stainless Chain |
| Transmission | Shimano Tx50-R/M315 Gear Shift System 7 Speed Derailleur |
| Front Suspension | Oil & Spring Suspension fork with adjustment |
| Frame | 6061 Aluminum Alloy with Internal Battery |
| Gearing | Shimano 7-speeds |
| Throttle | Half Twist Throttle |
| Kickstand | 6061 Aluminum Kickstand |
| Rims | Aluminum Alloy |
| Saddle | Breathable Ergonomic Sport Cushion Seat |
| Seat post | 31.9mm /Adjustable height |
| Sensor | Speed Sensors |
| Spokes | 12-Gauge Stainless Steel |
Dimensions & Sizing
| Rider Height | 5'1" ~ 6'2" (155cm ~ 190cm) |
|---|---|
| Reach | 19.29" / 49cm |
| Standover Height | 16.14" / 41cm |
| Wheelbase | 47.24" / 120cm |
| Total Length | 69.29" / 176cm |
| Min Saddle Height | 34.25" / 87cm |
| Max Saddle Height | 38.58" / 98cm |