Foldable Fat-Tire E-Bike
City-sharp. Trail-hungry. Shark-inspired.
Meet the HX Q5 Pro — a foldable fat-tire electric bike with 85 Nm of rear-hub torque, a Shimano 9-speed drivetrain, and a seamless aluminum frame sculpted with aerodynamic, shark-inspired lines.
Commute on weekdays, explore gravel and light trails on weekends, then fold it down and remove the battery for easy storage and charging — one bike for the way you actually live.
Why Q5 Pro
Smooth power, fat-tire confidence, foldable freedom.
85 Nm of linear, FOC-controlled power
The high-speed rear hub brushless motor (650W US / 250W EU) uses FOC control for smooth, quiet, linear delivery at up to 85% efficiency — with climbing ability up to 25°.
Removable battery, protected by BMS
The detachable 48V 13Ah pack (624 Wh) charges anywhere in 6–7 hours with the 2A charger. Built-in BMS guards against overcharge, short circuit, and over-discharge.
20″ × 4.0″ fat tires + adjustable fork
Wide fat tires deliver excellent traction and stability on pavement, gravel, sand, and wet ground, while the adjustable front suspension fork absorbs vibration before it reaches you.
Hydraulic discs, 360° visibility
160 mm hydraulic disc brakes provide safe, reliable stopping. A bright headlight and frame-integrated RGB lighting keep you visible after dark.
Range, honestly mapped
Choose your assist. Know your distance.
Pedal-assist power is adjustable in settings — no twist-and-go throttle on the compliant configuration — so you decide how far each charge takes you, from daily commutes to 100 km weekend routes.
Ride it your way
Perfect for the city. Ready for light off-road.
City & commuting
Smooth Shimano 9-speed shifting, an adjustable seat, and a clear 2.16″ display make daily miles easy. At the office or apartment, fold the frame and carry the battery in to charge.
Gravel, sand & wet terrain
Four-inch-wide tires float and grip where narrow tires sink and slip, and IPX6 water resistance shrugs off splashes, spray, and wet-weather rides.
Hills
85 Nm of torque plus nine gears to choose from: spin up 25° grades at your own cadence while the motor fills in the effort — arrive fresh, not fried.
Regulation-ready configurations. The Q5 Pro is configured to regional standards — 25 mph (40 km/h) for the US version and 15.5 mph (25 km/h) for the EU version — with assist levels adjustable in settings.
Shark-inspired design
A frame that looks fast standing still.
- Aeronautical aluminum, seamless lines. The lightweight aluminum alloy monocoque-style frame improves stability and reduces drag — and folds for transport and storage.
- Dialed-in fit. Adjustable seat and adjustable front fork let riders of different sizes find their position in minutes.
- Everything at a glance. The 2.16″ digital display keeps speed, battery, and assist level right where you can see them.
- Light the way home. Headlight up front and frame-integrated RGB lighting for night visibility from every angle.
- Toolkit included. Unbox, unfold, and ride — assembly tools are in the box.
- Support within 24 hours. Backed by a 1-year warranty and after-sales responses guaranteed within one business day.
Technical specifications
| Model | HX Q5 Pro (Q5) |
|---|---|
| Motor | Rear hub brushless motor · 650W (US) / 250W (EU) · FOC control |
| Torque | 85 Nm (80–90 Nm range) |
| Battery | 48V 13Ah (624 Wh) removable lithium battery · BMS protection · CE-certified |
| Range per charge | Pedal assist 25–37 mi (40–60 km) typical · up to 62 mi (100 km) max. in eco assist* |
| Charge time | 6–7 hours (2A charger) |
| Top speed | 25 mph / 40 km/h (US) · 15.5 mph / 25 km/h (EU) |
| Drive | Pedal assist, adjustable in settings · no twist-and-go throttle (compliant configuration) |
| Gearing | Shimano 9-speed |
| Tires | 20″ × 4.0″ fat tires |
| Suspension | Adjustable front suspension fork |
| Brakes | Dual hydraulic disc brakes · 160 mm rotors |
| Frame | Aluminum alloy · seamless shark-inspired design · foldable |
| Climbing angle | Up to 25° |
| Display | 2.16″ digital display |
| Lighting | LED headlight · frame-integrated RGB lights |
| Water resistance | IPX6 |
| Seat | Adjustable |
| Max. load | 265 lb (120 kg) |
| Net weight | 64 lb (29 kg), battery included |
| Rider group | Adults & older teens (per local rules) |
| Charger plug | US / EU / UK / AU / Swiss plug, matched to your region |
| In the box | Q5 Pro e-bike × 1 · toolkit included |
| Warranty | 1-year warranty · after-sales response within 24 hours |
| Package size / weight | 57.1 × 9.8 × 29.5 in (145 × 25 × 75 cm) · 77.2 lb (35.0 kg) gross |
Good to know before you ride
- *Range varies with assist level, rider weight, terrain, gradient, wind, temperature, and tire pressure. The 100 km maximum is achieved in the lowest eco assist setting under optimal, flat-road conditions.
- IPX6 protects against heavy splashes and rain. Do not submerge the bike or battery, and dry charging contacts before plugging in.
- E-bike classifications and equipment rules (including lighting colors) differ by state, city, and country. Select the version configured for your region, follow local regulations, and always wear a helmet.
City blocks on Monday, sandy trails on Saturday? Tell our team how you ride and we'll help you set up the Q5 Pro for it.
