Urtopia
Urtopia - Carbon Joy E-Bike
When the manufacturer offers free accessories or promotional bundles with this bike, we honor those offers at Brimstone Bicycles. Manufacturer eligibility and terms apply.
Pickup available at Brimstone Bicycles Shop
Usually ready in 2-4 days
Description:
Easy to use, comfy to cruise, built tough.
Light as Air,
Bold by Design
The Joy Carbon Fat Tire Ebike is 30% 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.
Lightweight Carbon
Fat Tire Electric Bike
Crafted from Toray carbon fiber—renowned in Formula 1 and elite cycling—the Joy Carbon utility family ebike blends strength with a sleek step-through design. Supporting up to 330 lbs, it remains lightweight and agile, embodying Urtopia’s commitment to innovation.
Built to Carry,
Ready for Anything
Blending cargo-ready strength with a responsive ride, this carbon ebike offers stability with its low-center-of-gravity design.With a rear rack capacity of 100 lbs and a front rack supporting up to 33 lbs, it’s perfect for hauling gear, groceries, or passengers—turning every ride into a breeze.
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 50mm suspension and shock-absorbing saddle, and adjustable 0-60° handlebars for customized positioning.
Instant Power,
Limitless Range
Joy Carbon eBike delivers instant power via thumb throttle and smart torque sensor that boosts range 10-30%. With 70-mile pedal-assist range (20% more than competitors) and 8-speed Shimano drivetrain, it rides farther with less effort.
Stable, Smooth,
Ready for Any Road
Joy’s bolt-on axle and 20” x 3.0” fat tires deliver a rock-solid yet smooth ride, absorbing shocks and gripping tough terrain—from potholes to wet roads. Combined with a suspension fork, it easily handles gravel, trails, and city streets, giving you the freedom to explore comfortably.

Carbon Joy E-bike Technical Specs
| General Info | |
| Model | Joy Carbon E-bike |
|---|---|
| Net Weight | 45 lbs (without accessories) |
| Material | Carbon fiber frame |
| 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 | Hydraulic disc brakes with power cut-off sensor |
| Wheels | Kenda 20’’ × 3.0’’, puncture-proof fat tire, 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 with brake sensing, rear rack mounted |
| IP Rating | 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 |
| Fork | 50mm travel suspension fork with preload adjustment |
| Grips | PU Leather |
| Comfort Saddle | 255 × 222 × 104mm |
| Seat Post |
Aluminum alloy, 2-stage adjustable design Diameter: φ30.9mm (inner), φ34.9mm (outer) Adjustment range: 100mm (inner), 120mm (outer) |
Shipping
Ready to ship in 2 days.
Return Policy
Our regular policy applies, please check our return policy for more details.