Urtopia
Urtopia - Carbon Joy Ultra E-Bike
new
Pickup available at Brimstone Bicycles Shop
Usually ready in 2-4 days
Light to ride, comfy to cruise, built tough.
Light as Air, Bold by Design
The Carbon Joy Ultra electric cruiser bike is 50% lighter than aluminum while ensuring exceptional strength and durability. Its flowing ribbon-inspired chainstays evoke motion, while the seat-tube-free frame is designed to turn heads and stand out.
Effortless Comfort, Perfect Fit
Designed for all-day comfort, the step-through frame and 20-inch wheels allow effortless mounting for riders of all heights. Enjoy smooth, nimble handling with carbon fork and shock-absorbing saddle, and adjustable 0-60° handlebars for customized positioning.
Carbon Joy Ultra Technical Specs
| General Info | |
| Model | Carbon Joy Ultra E-bike |
|---|---|
| Net Weight | 42 lbs (without accessories) |
| Material | Carbon fiber (frame, fork) |
| Range | Up to 70 miles |
| *The 70-mile range was tested with a 180 lb rider in ECO mode on flat roads without throttle. | |
| Top Speed | 20 mph by default, 25 mph upon unlock |
| Total Weight Limit | 330 lbs |
| Rider Height | 4’11’’ - 6’3’’ |
| Brakes | TEKTRO hydraulic disc brake with power cut-off sensor |
| Wheels | Kenda 20’’ × 3.0’’, Thru-Axle |
| E-Bike System | |
| Class | Class 2 |
| Motor | 500W (Peak Power 750W) rear hub motor, 60Nm torque |
| Throttle | Yes (up to 20 mph) |
| Battery | 529.2Wh Samsung Li-ion, UL-2271 certified |
| Pedal Assist | 4 levels (Eco, Tour, Boost, Turbo) |
| Charger | 3.5 hrs fast charger |
| Sensors | Torque sensor |
| Lights | Front: External light, 30 Lux Rear: External tail light |
| Water Resistance | IP65 |
| Drivetrain | |
| Chainrings | 50T |
| Crankset | Aluminum alloy, 152mm |
| Cassette | 12-32T, 8 Speed |
| Chain | Shimano 8 speed |
| Rear Derailleur | Shimano 8 speed |
| Shift Lever | 8 Speed Trigger |
| Pedals | PP, 103 × 84 × 24mm |
| Cockpit | |
| Handlebar | Aluminum, extender 0–60° adjustable |
| Grips | Durable ergonomic grips, lockable |
| Comfort Saddle | 273 × 160 × 75mm |
| Seat Post | Aluminum alloy, 2-stage adjustable design Diameter: φ30.9mm (inner), φ34.9mm (outer) Adjustment range: 100mm (inner), 120mm (outer) |