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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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For Your Every Summer RSVP, with Code: SUMMER15
Description
HKM-515731 750W Electric City Bicycle, 48V E-Bike with 7-Speed Gears, Aluminum Alloy Frame, 26" WheelsHKM 515731 750W Electric City Bicycle Precision engineered for the modern urban explorer. The HKM 515731 merges a featherlight 6061 aluminum frame with a high torque 750W rear hub motor, delivering refined power, intuitive pedal assist, and a battery that keeps pace with your daily rhythm all wrapped in a sleek, confident design. Up to 20 mph (32 km h) 19 37 miles (31 60 km) Range 48V 14Ah Lithium Battery Hydraulic Disc Brakes Designed Around Your
HKM-515731 750W Electric City Bicycle
Precision-engineered for the modern urban explorer. The HKM-515731 merges a featherlight 6061 aluminum frame with a high-torque 750W rear hub motor, delivering refined power, intuitive pedal assist, and a battery that keeps pace with your daily rhythm — all wrapped in a sleek, confident design.
Designed Around Your Ride
750W Rear Hub Motor
Responsive acceleration and consistent torque. The rear‑hub layout delivers balanced propulsion that feels natural from the first pedal stroke, climbing moderate hills without hesitation.
48V 14Ah Lithium Battery
Integrated energy cell with smart BMS protection. Delivers 19–37 miles (31–60 km) per charge, fully replenished in just over 3 hours — ready for your morning commute or evening unwind.
7-Speed Drivetrain
Shimano-compatible cassette with precise indexing. Seamlessly adapt to headwinds, gentle inclines, or open flats — the right gear is always a click away.
Hydraulic Disc Brakes
Mineral-oil hydraulic system front and rear. Progressive lever feel, fade‑resistant performance in wet conditions, and confident stopping distances — safety without compromise.
Refined Power Delivery
The 750W brushless rear hub motor is calibrated for smooth, quiet thrust. Unlike front‑hub designs, rear placement puts weight over the drive wheel for superior traction on damp pavement and loose gravel. Top assisted speed: 20 mph (32 km/h) — optimized for urban flow, not racetrack extremes.
Intelligent Energy Management
The 48V 14Ah lithium‑ion pack uses 21700 cells for higher energy density and longer cycle life. The smart BMS protects against overcharge, deep discharge, and temperature extremes, extending the pack's lifespan.
*Range varies based on rider weight, terrain, assist level, and weather conditions. PAS level 1–2 yields the highest mileage.
Smart Cockpit, Total Control
LCD Display
Sunlight‑readable monochrome panel shows speed, battery %, assist level, and odometer at a glance. Backlit for night riding.
Half Twist Throttle
Progressive throttle on the right grip — simply twist to accelerate without pedaling. Intuitive control for stop‑and‑go traffic.
The Pedal Assist System (PAS) uses a 12‑magnet cadence sensor for smooth, lag‑free engagement. Five assist levels let you dial in the exact effort you want to contribute.
Stability Meets Comfort
26‑inch wheels wrapped in 3.0‑inch wide tires strike the perfect balance between low rolling resistance and plush cushioning. The volume absorbs road chatter, while the rounded profile maintains confident cornering on pavement and hardpack paths.
6061 Aluminum Frame
Hydroformed 6061 alloy tubes deliver an ideal stiffness‑to‑weight ratio. The frame is corrosion‑resistant and designed with a low step‑through option for effortless mounting. Internal cable routing keeps lines clean and protected from the elements.
6061 Aluminum Alloy
Smooth TIG, post‑weld heat treated
Suspension fork, 60mm travel
Frequently Asked Questions
On a flat road with a 170 lb rider, throttle‑only reaches approximately 20 mph (32 km/h). Pedal assist can maintain that speed with less battery consumption.
The electrical components are rated IPX5 water‑resistant. Riding in light to moderate rain is fine, but avoid submerging the motor or battery. Dry connections after heavy exposure.
Store the battery at 40–70% charge in cool temperatures. Avoid deep discharges below 10% regularly. The BMS prevents overcharging, so you can leave the charger connected overnight occasionally.
Yes, the half twist throttle works independently from PAS. You can ride throttle‑only up to the max speed, or combine with pedal assist for extended range.
Purchase with Confidence
*Policy applies to original purchaser. See full terms for details.
Crafted for the city. Tuned for life.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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