Cyrusher Rumble 2.0 Step-Thru Electric Bike
designed to offer a perfect balance of power, comfort, and everyday practicality. Built with a modern step-thru frame, this e-bike ensures easy mounting and dismounting, making it an excellent choice for riders of all ages and experience levels. Whether you're commuting through the city, cruising along coastal roads, or exploring light off-road trails, the Rumble 2.0 delivers a smooth and enjoyable riding experience.
At the heart of the bike is a robust 48V 250W brushless rear hub motor that generates an impressive 85 Nm of torque. This powerful motor provides strong acceleration and reliable support, especially when tackling inclines or carrying heavier loads. Combined with a torque sensor, the bike delivers a natural and responsive pedal assist system (PAS), adjusting power output based on your pedaling effort for a more intuitive ride.
The Rumble 2.0 is equipped with a high-capacity 48V 18Ah battery, offering a range of up to 94 km on a single charge, depending on riding conditions and assistance levels. With a charging time of approximately 6–7 hours and a lifespan of up to 800 cycles, the battery is built for long-term reliability and convenience. This makes it ideal for daily commuting as well as longer recreational rides.
Comfort is a major highlight of this model. The bike features a step-thru aluminum alloy 6061 frame with an integrated battery design, giving it a sleek look while maintaining durability. The oil suspension fork with adjustable settings absorbs shocks effectively, ensuring a smooth ride even on uneven surfaces. Paired with 20" x 4" Chaoyang fat tires, the bike provides excellent stability, traction, and control across a variety of terrains.
Safety and control are enhanced by full hydraulic disc brakes with 180 mm rotors on both the front and rear wheels, delivering consistent and powerful stopping performance in all weather conditions. The Shimano 7-speed gear system, including the TX50 shifter and RD-TY300 rear derailleur, allows riders to easily adapt to different terrains and riding preferences.
Additional features further elevate the riding experience. The 3.5" colorful LCD display keeps you informed with real-time data such as speed, battery level, and assistance mode. A breathable ergonomic gel saddle and adjustable seatpost ensure long-lasting comfort, while durable components like stainless steel spokes and KMC chain enhance overall reliability.
With a payload capacity of 150 kg and a total weight of 31.9 kg (including battery), the Cyrusher Rumble 2.0 is both sturdy and versatile. Its combination of performance, comfort, and thoughtful design makes it a dependable companion for both urban commuting and weekend adventures.
Geometry
| Top Tube Length |
45 cm |
| Standover Height |
44 cm |
| Wheelbase |
121 cm |
| Overall Length |
180.5 cm |
| Minimum Saddle Height |
82 cm |
| Maximum Saddle Height |
106 cm |
| Rider Size |
155 cm – 190 cm |
Specification
| Tires |
Chaoyang 20" x 4" Fat Tire |
| Display |
3.5" LCD Display, Colorful Smart Computer |
| Brakes |
Full hydraulic disc brakes, 180 mm front + rear |
| Pedal Crank Set |
170 mm forged, 52T, double-sided alloy aluminum crank arm |
| Chain |
KMC Stainless Steel Chain |
| Gears |
Shimano TX50-R/M315 rear derailleur system, 7-speed |
| Rear Derailleur |
Shimano Rd-TY300-D-ATT, 7-speed |
| Suspension |
Oil suspension fork with adjustment option |
| Frame |
Aluminum alloy 6061 with integrated battery |
| Gears (General) |
Shimano 7-speed |
| Stand |
6061 Aluminum Stand |
| Rims |
Aluminum alloy |
| Saddle |
Breathable ergonomic sports gel saddle |
| Seatpost |
33.9 mm, height adjustable |
| Sensor |
Torque sensor |
| Spokes |
12 Gauge Stainless Steel |
| Battery |
48V 18Ah |
| Charger |
48V 3.0A |
| Charging Time |
6–7 hours |
| Battery Life |
800 cycles |
| Speed |
Up to 25 km/h at PAS level 5 |
| Weight |
31.9 kg (including battery) |
| Range |
Up to 94 km |
| Motor |
48V 250W, 85 Nm Brushless Rear Wheel Hub Motor |
| Payload |
150 kg |
