SKU: 5729428818

HKM-553875 Electric Road Bike 48V 19.2Ah Lithium Battery, 750W Brushless Motor, 26" Aluminum Frame, 7-Speed, Hydraulic Disc Brake

Sale price$675.00 Regular price$750.00
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Description

HKM-553875 Electric Road Bike 48V 19.2Ah Lithium Battery, 750W Brushless Motor, 26" Aluminum Frame, 7-Speed, Hydraulic Disc BrakeHKM 553875 Electric Road Bike Precision engineering meets effortless commuting designed to move you faster, farther, and smarter. 750W Hightorque brushless motor 921. 6Wh 48V 19. 2Ah lithium pack 37+ mi Range (60+ km) per charge 2430 mph Top speed (3848 km h) Seamless Power, Intelligent Ride The HKM 553875 integrates a refined 750watt brushless rear hub motor that delivers consistent, responsive acceleration from the first pedal stroke. Its sinusoidal

HKM-553875 Electric Road Bike

Precision engineering meets effortless commuting — designed to move you faster, farther, and smarter.

750W High‑torque brushless motor
921.6Wh 48V 19.2Ah lithium pack
37+ mi Range (60+ km) per charge
24–30 mph Top speed (38–48 km/h)

Seamless Power, Intelligent Ride

The HKM-553875 integrates a refined 750‑watt brushless rear hub motor that delivers consistent, responsive acceleration from the first pedal stroke. Its sinusoidal controller minimizes noise and vibration, allowing you to cruise through city streets or ascend moderate inclines without harsh surges. Whether you’re using the responsive pedal‑assist system or the convenient thumb throttle, the motor adapts instantly to your input — providing a natural riding sensation that feels like an extension of your own strength.

Endurance‑Grade Battery Architecture

At the core of its long‑distance capability lies a 48V 19.2Ah lithium‑ion battery pack, carefully arranged with high‑energy‑density 21700 cells. This translates to a total capacity of 921.6 watt‑hours, enough to cover more than 37 miles (60 km) on a single charge under typical mixed‑terrain conditions. An advanced Battery Management System (BMS) continuously monitors individual cell voltage, temperature, and charge balance, protecting against overcharge, deep discharge, and short circuits — extending battery lifespan and ensuring peace of mind on every ride.

The removable pack locks securely into the downtube, enabling convenient off‑bike charging. A full recharge takes approximately 4.5–6 hours using the included 48V 2A smart charger, which automatically switches to trickle mode once optimal voltage is reached.

Lightweight 26″ Aluminum Chassis

The foundation is a hydroformed 6061 aluminum alloy frame designed around responsive 26‑inch wheels. This wheel size strikes a proven balance between agile handling and rollover capability on uneven pavement. The frame’s butted tubing reduces weight without sacrificing torsional stiffness, while the carefully tuned geometry places the rider in a confident, slightly forward position that reduces fatigue on longer rides. Internal cable routing keeps the silhouette clean and protects shift and brake lines from the elements.

Hydraulic Disc Brakes — All‑Weather Confidence

Stopping power is delivered by front and rear hydraulic disc brakes, featuring dual‑piston calipers and stainless‑steel rotors. The fully sealed hydraulic system requires minimal maintenance while providing progressive, modulated braking even in wet or dusty conditions. Whether you’re descending a rain‑slicked overpass or threading through rush‑hour traffic, the braking performance remains predictable, quiet, and powerful — a critical safety asset.

7‑Speed Drivetrain & Effortless Shifting

The Shimano‑compatible 7‑speed cassette and rear derailleur give you the right gear for every scenario. Click through the ratios with a precise thumb shifter to maintain a comfortable cadence: spin easily up inclines in lower gears, or push higher speeds on flats without feeling spun‑out. Combined with the motor’s assist, the system lets you fine‑tune your output — preserving battery when you want extra range, or maximizing acceleration when you crave thrill.

Intuitive Cockpit & Rider Interface

A backlit LCD display sits flush within the reach of your thumb, presenting real‑time speed, battery level, pedal‑assist mode (0–5), trip distance, and odometer. The interface is readable under direct sunlight and automatically adjusts brightness. Handlebar‑mounted controls allow you to toggle assist levels or activate the thumb throttle without removing your hands from the grips — letting you stay focused on the road ahead.

Puncture‑Resistant Tires & Vibration Damping

Fitted with 26″ x 1.95″ multi‑surface tires that feature a puncture‑resistant casing and a continuous center ridge for low rolling resistance on pavement. Subtle side knobs provide additional grip when cornering on gravel or hardpack paths. The tires work together with a suspension fork (optional on select builds) and a compliant alloy seatpost to absorb high‑frequency road buzz, helping you arrive fresher after longer commutes.

Integrated Safety Lighting

A high‑output LED headlight and a multi‑mode rear light are wired directly to the main battery. The headlamp casts a wide, even beam with side‑visibility cutouts, while the rear light features both steady and flashing modes. Powered by the bike’s central battery, these lights never need separate charging — a small detail that makes daily commuting safer and more convenient.

Technical Specifications

Motor
750W brushless rear hub
Battery
48V 19.2Ah (921.6Wh) Li‑ion
Range
37+ mi (60+ km)
Top Speed
24–30 mph (38–48 km/h)
Frame
26″ 6061 aluminum alloy
Gearing
7‑speed rear derailleur
Brakes
Hydraulic disc, 160mm rotors
Tires
26″ x 1.95″ puncture‑resistant
Display
Backlit LCD, 5 assist levels
Charger
48V 2A smart charger
Weight
Approx. 52 lb (23.6 kg) including battery
Throttle
Thumb throttle + pedal assist

Frequently Asked Questions

How long does it take to fully charge the battery?

Using the included 48V 2A smart charger, a full charge takes approximately 4.5 to 6 hours. The charger automatically enters a maintenance float mode once the battery reaches capacity, preventing overcharging.

Is the battery removable?

Yes. The battery locks securely into the downtube and can be released with a key for off‑bike charging or secure storage. This design also simplifies battery swapping for extended adventures.

What is the maximum load capacity?

The robust aluminum frame and reinforced rear rack mounts support a total payload (rider + cargo) of up to 300 lb (136 kg). For optimal range and handling, we recommend staying within this limit.

Do I need a license or insurance to ride this e‑bike?

Regulations vary by jurisdiction. In most U.S. states, this electric bicycle falls under Class 2/3 e‑bike legislation, meaning no license or registration is required, but a helmet and minimum age restrictions may apply. Always check local laws before riding.

Is the bike water‑resistant?

The electronics, battery compartment, and motor are sealed to meet an IP54 water‑resistance rating, meaning they withstand splashes and light rain. However, the bike should not be submerged or pressure‑washed.

Why the HKM-553875 Fits Your Lifestyle

Modern mobility demands a vehicle that adapts to your rhythm. The HKM-553875 eliminates the compromises found in traditional bikes and heavy electric scooters. You get the athletic feel of a road bike with the boost of an electric drivetrain — ride hard on the way home, or arrive sweat‑free at the office. The geometry, range, and intuitive controls make it equally suited for weekday commuting, weekend fitness loops, and spontaneous explorations.

Compared to similar 750W e‑bikes, the HKM-553875 distinguishes itself through a larger 921.6Wh battery (many competitors pack 672Wh or less) and a refined hydraulic brake system. The 26″ wheel platform ensures replacement tires and tubes are widely available, while the aluminum frame remains resistant to corrosion. Plus, the hidden‑cable design and integrated lighting reflect attention to detail that riders appreciate.

Peace of Mind, From Click to Pavement

Free Shipping on All Orders
We deliver your HKM-553875 at no extra cost, securely packaged and fully trackable.
180 Days Purchase Protection
Extended peace of mind against manufacturing defects, so you ride with confidence.
30‑Day Money‑Back Guarantee
If the ride isn’t for you, return it within 30 days for a full refund — no hassle.
24‑Month Warranty Service
Coverage on motor, battery, and frame against material and workmanship issues.

Specifications and range estimates are based on standard testing conditions (rider weight 165 lb / 75 kg, level terrain, pedal‑assist mode). Actual performance may vary with load, terrain, wind, and riding style.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5729428818

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