SKU: 5505516512

HKM-455571 Long Range 48V 19.2AH Electric City Bike with Hydraulic Disc Brakes and 9-Speed Gears

Sale price$585.00 Regular price$650.00
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USA
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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

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Description

HKM-455571 Long Range 48V 19.2AH Electric City Bike with Hydraulic Disc Brakes and 9-Speed GearsHKM 455571 Long Range Electric City Bike 48V 19. 2AH 350W Brushless Motor 9Speed Hydraulic Disc Brakes 350W Rear Hub Motor Effortless acceleration up to 28 mph (45 km h) for swift urban travel. 48V 19. 2AH Hidden Battery Up to 60 mi (96 km) range 35 h recharge. 9Speed Precision Gearing Seamless shifting across flats, climbs, and city streets. Hydraulic Disc Brakes Confident stopping power in wet or dry conditions. Designed for the Modern Commuter The

HKM-455571 Long Range Electric City Bike

48V 19.2AH · 350W Brushless Motor · 9‑Speed · Hydraulic Disc Brakes

350W Rear Hub Motor

Effortless acceleration up to 28 mph (45 km/h) for swift urban travel.

48V 19.2AH Hidden Battery

Up to 60 mi (96 km) range · 3–5 h recharge.

9‑Speed Precision Gearing

Seamless shifting across flats, climbs, and city streets.

Hydraulic Disc Brakes

Confident stopping power in wet or dry conditions.

Designed for the Modern Commuter

The HKM‑455571 merges clean aesthetics with genuine utility. Its aluminum alloy frame keeps the weight manageable without sacrificing rigidity, while the integrated battery maintains a sleek profile that doesn’t scream “electric.” Whether you’re weaving through downtown traffic or cruising along a park path, the geometry offers an upright, comfortable position that reduces strain on your back and wrists. Thoughtful details like internal cable routing and hidden welds speak to a build quality that’s meant to be seen and felt.

Power That Keeps Up

The 350‑watt brushless rear hub motor delivers a natural-feeling assist that responds instantly to pedal input. Three assist levels let you dial in exactly the amount of help you want — from a gentle breeze at your back to a vigorous push that flattens hills. The motor is engineered to be quiet, so you’ll hear the city around you, not a mechanical whine. With a top assisted speed of 28 mph (45 km/h), you’ll arrive at your destination fresher and faster than you would on a traditional bike, without breaking a sweat.

Battery Intelligence & Range

The 48V 19.2AH lithium‑ion pack uses automotive‑grade cells arranged for balanced discharge and longevity. Hidden inside the downtube, it stays protected from the elements and potential theft. A full charge takes only 3 to 5 hours, so you can top up during a workday or overnight. Under typical pedal‑assist conditions (mixed terrain, 165 lb / 75 kg rider), the bike can cover up to 60 miles (96 km) — enough for a week of short commutes or a long weekend adventure without range anxiety. A backlit handlebar display shows remaining charge, speed, and assist level at a glance.

350 W
Motor Power
28 mph
Top Speed (45 km/h)
19.2 Ah
Battery (921.6 Wh)
~60 mi
Est. Range (96 km)
9-Speed
Drivetrain
Hydraulic
Disc Brakes
27.5″
Wheels
Al Alloy
Frame Material

Built for Safety & Visibility

Riding in low light shouldn't feel like a compromise. A high‑output LED headlight cuts through the dark with a wide, even beam, while reflective accents on the frame and tires add passive visibility. The hydraulic disc brakes — with sintered pads — provide consistent, modulation‑friendly stopping power in rain or shine. Because the battery is integrated, the bike retains a clean silhouette that doesn't sacrifice safety for style.

Comfort That Lasts the Whole Ride

The 27.5‑inch wheels strike the ideal balance between nimble handling and bump absorption. Paired with a compliant aluminum fork and a padded saddle, they smooth out potholes and uneven pavement. Ergonomic grips and an adjustable stem let you fine‑tune your fit, so whether you're 5′5″ or 6′2″ (165–188 cm), you'll find a natural riding posture. The bike’s overall dimensions are approximately 72.8 × 26.4 × 43.3 inches (185 × 67 × 110 cm) with a net weight of roughly 55.1 lb (25 kg), making it substantial enough for stability yet still light enough to maneuver up a curb or onto a train.

Frequently Asked Questions

What is the real‑world range I can expect?
Range depends on assist level, rider weight, terrain, and wind. In mixed‑mode testing with a 165 lb (75 kg) rider on moderately hilly terrain, the HKM‑455571 achieved up to 60 miles (96 km). Using the highest assist setting or carrying heavy cargo may reduce range to around 35‑40 miles (55‑65 km).
How long does the battery take to charge?
A full charge from empty takes between 3 and 5 hours using the included 48V charger. The battery can be charged on or off the bike.
Is the bike waterproof?
The electronic components are rated IP65, meaning they resist rain and splashes. We recommend avoiding submersion or pressure washing.
What size rider does this bike fit?
The frame geometry accommodates riders from approximately 5′5″ to 6′2″ (165–188 cm). The adjustable seatpost and stem offer additional fine‑tuning.
Does it come assembled?
The bike ships 85% assembled. You'll need to attach the handlebars, front wheel, pedals, and seat. Tools and instructions are included, and assembly typically takes 20‑30 minutes.

Purchase with Confidence

Free Shipping

On all orders, no minimum. Direct to your door.

180-Day Purchase Protection

Extended coverage against defects and early wear.

30-Day Money-Back Guarantee

Not satisfied? Return it for a full refund, no questions asked.

24-Month Warranty Service

Comprehensive coverage for frame, motor, and battery.

HKM-455571 Long Range 48V 19.2AH Electric City Bike · Built for the everyday journey

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: 5505516512

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4.1 ★★★★★
Based on 27 reviews
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Product Reviews
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Verified Purchase
Liz Newman
Natrona Heights, US
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
J
Verified Purchase
Janola
Port Orchard, US
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
R
Verified Purchase
Reviewer
Carnegie, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
B
Verified Purchase
Brittany
Birmingham, US
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
Janessa L.
Alexandria, US
★★★★★ 5
I want to live in these
Color: 01-multicolour (4-pack), Size: Medium
I bought 4 different sets of new underwear. Unfortunately these came last. It’s unfortunate, because if they had come first I would have cancelled all my other orders or returned them and ordered more of these. I never want to wear anything else ever again; these are the comfiest undies I’ve ever owned, I want to live in them. I can wear them under pretty much anything except leggings or very tight pants (but let’s be honest, I don’t wear those anyway.) They are incredibly soft and breathable, they wash well, don’t roll, keep my thighs from rubbing, are comfy to sleep in, and the colors were true to the photo. Just a heads up, they are on the thin side and just a bit see through in the rear. I’m 5’5” 140lbs and the mediums fit perfectly, they go about mid-thigh.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 30, 2025

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