CMACEWHEEL HQ20 PRO Torque Sensor Dual Battery Electric Bike – 250W Rated / 950W Peak, 1920Wh, 140 km Range, 20" Tires

CMACEWHEEL HQ20 PRO (Dual Battery) — 20" Step-Through Electric Cargo & Long-Range Bike

Embark on limitless journeys with the CMACEWHEEL HQ20 PRO (Dual Battery). Engineered for exceptional range, power, and everyday utility, it features a dual-battery system packing a colossal 1920Wh (48V 20Ah × 2) to deliver up to 140 km (87 mi) of pedal-assist exploration per charge. Unlike entry-level e-bikes equipped with basic cadence/speed sensors that suffer from unnatural pedal lag, jerky power surges, and wasted energy, the HQ20 PRO is equipped with an advanced high-sensitivity dynamic torque sensor. By measuring your actual pedal pressure in real time with millisecond precision, it delivers instantaneous, silky-smooth proportional assistance that feels completely intuitive—like a natural extension of your own pedaling power—while maximizing battery efficiency by up to 25%. In strict compliance with European road regulations (EN 15194 / EPAC), the top speed is factory-limited to 25 km/h (15.5 mph) in pedal-assist mode, and the twist throttle is restricted in the EU to a 6 km/h (3.7 mph) walk-assist mode. For riders located outside the European Union, the twist throttle can be fully activated and the top speed unlocked up to 42 km/h (26 mph). Fully equipped with hydraulic disc brakes, 100mm hydraulic front suspension, cargo basket, and cushioned rear seat, the HQ20 PRO sets a new benchmark for long-range comfort and smart riding.

⚡ Smart Dynamic Torque Sensor vs. Traditional Speed Sensors

• Instantaneous Zero-Lag Response: Detects your pedal force within milliseconds—no awkward delays or waiting for a crank rotation before the motor engages.
• Proportional, Intuitive Power Delivery: Push gently for relaxed cruising, or pedal firmly to instantly unleash power up steep climbs. Eliminates sudden surges and jerky lurches for supreme stability.
• Effortless Hill Starts: Delivers instant torque from a standstill on steep 30° inclines, preventing stall-outs even when loaded with heavy groceries or passenger weight.
• Up to 25% Extended Range: Smart current metering supplies only the exact power needed, eliminating current waste common in speed sensors and stretching your battery range to the maximum.

🔋 1920Wh Massive Dual Removable Batteries

• Dual 48V 20Ah lithium batteries · 1920Wh total capacity (960Wh × 2) · up to 140 km (87 mi) per charge (pedal assist) / 70–80 km pure electric (outside EU with throttle activated)
• Dual independent removable design (Battery A on low frame / Battery B under rear rack) — charge indoors safely or directly on the bike
• Intelligent dual-BMS safety protection + over-current protection + key-lockable anti-theft security on both batteries

🚀 250W Rated / 950W Peak Power & Legal Compliance

• 250W Continuous Rated / 950W Peak Motor: Fully complies with EU road regulations with a 250W continuous rated output, while unleashing up to 950W peak power surge for climbing steep 30° grades and carrying heavy payloads
• EU-Compliant Speed & 6 km/h Walk Assist: Factory-capped at 25 km/h (15.5 mph) in pedal-assist mode. In the EU, the twist throttle is restricted strictly to an EU-compliant 6 km/h push/walk-assist function to assist when walking the bike uphill or across pedestrian zones
• Outside-EU Unlock & Throttle Activation: For use strictly outside the European Union, the throttle can be unlocked for full-speed pure electric driving up to 42 km/h (26 mph)
• 5 pedal-assist levels + 3 riding modes to tackle everything from cargo hauling and daily commutes to cross-country touring

🛞 20"×2.40" All-Terrain Tires & Hydraulic Braking Control

• 20" × 2.40" puncture-resistant, anti-skid all-terrain tires — low rolling resistance on paved roads with dependable traction across gravel and wet streets
• Front and rear hydraulic disc brakes provide responsive, short-distance braking and supreme control in all weather conditions
• Hydraulic front suspension fork with 100 mm of travel absorbs road vibrations, potholes, and terrain impacts for supreme ride comfort
• Shimano 7-speed gearing system allows seamless gear changes to match any cadence or incline

📟 Smart LCD Display & Full Lighting System

• Smart LCD display: real-time speed, dual battery indicators, trip mileage, and assist level clearly visible in all lighting conditions
• High-output LED headlight, rear taillights with integrated turn signals, and orange wheel reflectors for 360° visibility

🚲 Low Step-Through Frame, Folding Stem & Full Cargo Package

• Low step-through frame design allows riders of all heights and flexibility levels to easily mount and dismount, even when loaded with cargo
• Quick-folding handlebar stem allows compact storage in vehicle trunks, camper vans, or home hallways
• Comes fully loaded: front cargo basket, extended cushioned rear seat, premium bamboo rear passenger footrests, full-coverage fenders, and heavy-duty 2-leg kickstand
• Carries up to 150 kg (330 lbs) — ideally suited for riders from 160–195 cm (5'3"–6'5")
• IP54 water-resistant rating for reliable daily riding

📐 Specifications

Note: Range and speed are measured under ideal pedal-assist conditions; actual performance varies with rider weight, payload, terrain, temperature, and assist level. The 250W continuous rated motor and 25 km/h factory assist limit strictly comply with European road standards (EN 15194 / EPAC). Within the EU, throttle operation is restricted strictly to a 6 km/h walk-assist mode. Enabling full throttle driving and unlocking speed up to 42 km/h is exclusively permitted outside the European Union. Please adhere strictly to your local traffic regulations.

🚚 Shipping & Delivery

• Poland Warehouse: Fast delivery within 3–7 business days to EU countries.
• China Warehouse: Direct factory dispatch with door-to-door tracked delivery within 15–45 business days.
• Dispatch: Orders are typically processed and shipped within 24–48 hours on business days.

🛡️ Warranty & After-Sales Support

• 1-Year Warranty: Covers motor, frame, controller, and charger against manufacturer defects.
• 6-Month Warranty: Dedicated coverage for both 48V 20Ah lithium batteries.
• Customer Care: Lifetime technical support and replacement parts support for your peace of mind.

📦 What's in the Box?

• 1 × CMACEWHEEL HQ20 PRO Step-Through Electric Bike (mostly pre-assembled)
• 2 × 48V 20Ah Removable Lithium Batteries (with individual keys)
• 1 × Battery Charger & Power Cable
• 1 × Front Cargo Basket & Extended Cushioned Rear Seat
• 2 × Bamboo Rear Passenger Footrests
• 1 × Front & Rear Fenders & Heavy-Duty 2-Leg Kickstand
• 1 × Multi-functional Assembly Toolkit
• 1 × User Manual & Quick Start Guide

❓ Frequently Asked Questions (FAQ)

Q: What makes a Torque Sensor vastly superior to traditional speed/cadence sensors?
A: Traditional speed/cadence sensors only know whether your pedals are turning, which causes an annoying 0.5–1 second delay before the motor starts, followed by an abrupt, jerky surge. The HQ20 PRO's intelligent torque sensor continuously measures the actual pressure of your feet in milliseconds. It provides instantaneous, silky-smooth proportional assistance that matches your exact pedaling effort. This makes starting on steep hills effortless, improves riding safety at slow speeds, and boosts overall battery range by up to 25%!

Q: Is this dual-battery electric bike street-legal in Europe?
A: Yes! The CMACEWHEEL HQ20 PRO is fully configured for European road compliance. It features an EU-compliant 250W continuous rated motor, a factory assist limit of 25 km/h (15.5 mph), and the throttle is restricted in the EU strictly to an EU-compliant 6 km/h walk-assist mode.

Q: What is the 6 km/h throttle mode in the EU?
A: In compliance with European EPAC regulations, the throttle in the EU is limited to 6 km/h (3.7 mph) to assist you when pushing or walking the bike uphill or across pedestrian zones without pedaling.

Q: Can the maximum speed be unlocked and full throttle activated?
A: Yes, unlocking full throttle operation and speeds up to 42 km/h (26 mph) is available, but strictly permitted and intended ONLY for riders and destinations outside the European Union.

Q: How do the two batteries work and can they be charged separately?
A: The HQ20 PRO features two independent 48V 20Ah batteries (totaling 1920Wh). Both batteries have their own key lock and can be easily removed to charge individually indoors or left on the bike to charge.

Q: Can I ride this electric bike in the rain?
A: The bike features an IP54 water resistance rating, making it safe for light rain and wet road splashes. We recommend avoiding heavy downpours and deep standing water.

Q: Need help before you buy?
A: Our support team is happy to help — just reach out through our store's contact page.