TOP SPEED
20 MPH
RANGE
UP-TO 70 miles
MOTOR POWER
500W Peak
PAYLOAD
330 lbs
FOLDABLE
Not Foldable
BRAND WARRANTY
2-year
Luxury Carbon Frame
Joy Ultra’s seamless monocoque carbon frame combines sculpted elegance with strength—50% lighter than aluminum yet incredibly durable. Aerospace-grade carbon ensures a premium, effortless ride.
Throttle & Pedal Assist
Switch easily between thumb throttle and torque-sensing pedal assist for instant acceleration or a natural ride feel—perfect for quick starts and heavy loads.
Torque Sensor Boost
Delivers precise motor assistance for smooth starts and stable climbs, offering up to 30% more range than cadence sensors.
Adjustable Cruiser Handlebar
With a 0–60° range, this ergonomic handlebar adapts to any height and posture—from sporty lean to relaxed upright comfort.
Size Guide
| Measurement | One Size |
|---|---|
| Recommended Rider Height | 4’11’’ ~ 6’3’’ |
| A. Top Tube Length | 586 mm (23’’) |
| B. Max Seat Height | 1010 mm (40’’) |
| C. Min Seat Height | 770 mm (30’’) |
| D. Overall Length | 1698 mm (67’’) |
| E. Wheelbase | 1136.5 mm (45’’) |
| F. Wheel Diameter | 560 mm (22’’) |
| G. Head Tube Length | 190 mm (7’’) |
| H. Handlebar Height | 1011 mm (40’’) |
| I. Standover Height | 411 mm (16’’) |
Specifications
General Info
| Model | Carbon Joy Ultra E-bike |
| Net Weight | 42 lbs w/o accessories |
Frame
| Material | Carbon fiber (frame, fork) |
| Range | Up to 70 miles *Tested with a 180 lb rider in ECO mode on flat roads without throttle |
Performance
| 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’’ x 3.0’’ Thru-Axle |
| Frame Type | Lightweight carbon design |
| Use Case | Urban commuting & comfort riding |
| Water Resistance | IP65 |
| Range Test | 70 miles under ECO riding conditions |
| Wheel Size | 20 inch fat tire design |
| Weight Class | Ultra-light carbon e-bike category |
Ebike System
Electric drive system
| Class | Class 2 |
| Motor | 500W (Peak 750W) rear hub motor, 60Nm |
| Throttle | Yes (up to 20 mph) |
| Battery | 529.2Wh Samsung Li-ion, UL-2271 certified |
Electronics
| Pedal Assist | 4 levels (Eco, Tour, Boost, Turbo) |
| Charger | 3.5 hrs fast charger |
| Sensors | Torque sensor |
| Front Light | External light, 30 Lux |
| Rear Light | External tail light (Not ARES lights) |
| Protection | IP65 water resistance |
Drivetrain
| Chainrings | 50T |
| Crankset | Aluminum alloy, 152mm |
| Cassette | 12-32T, 8 Speed |
Transmission
| Chain | Shimano 8 speed |
| Rear Derailleur | Shimano 8 speed |
| Shift Lever | 8 Speed Trigger |
Pedals
| Pedals | PP Platform |
| Dimensions | 103 x 84 x 24mm |
| Material | Durable PP |
| Design | Platform style |
| Grip | Anti-slip |
| Standard | Universal bike pedal size |
Cockpit
| Handlebar | Aluminum, extender 0–60° adjustable |
| Grips | Durable ergonomic grips, lockable |
Saddle
| Comfort Saddle | 273 x 160 x 75mm |
| Seat Post | Aluminum Alloy 2-stage adjustable design |
Seat Post Details
| Diameter | φ30.9mm (inner) / φ34.9mm (outer) |
| Adjustment Range | 100mm (inner) / 120mm (outer) |
Battery Certification
| Battery Type | Samsung Li-ion |
| Certification | UL-2271 |
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