HKM-849939 48V 1000W Mountain Bike with 27 Speed Gears, 27.5 Inch Aluminum Frame and Hydraulic Disc Brakes
SKU: 87408343859

HKM-849939 48V 1000W Mountain Bike with 27 Speed Gears, 27.5 Inch Aluminum Frame and Hydraulic Disc Brakes

Sale price$765.00 Regular price$850.00
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Description

HKM-849939 48V 1000W Mountain Bike with 27 Speed Gears, 27.5 Inch Aluminum Frame and Hydraulic Disc BrakesHKM 849939 Electric Mountain Bike Engineered for the trailhungry adventurer where robust electric power meets precision allterrain agility. 1000 W HighTorque Motor 48 V brushless rear hub motor delivers instant acceleration and conquers steep grades with ease. Extended Range Lithium Battery Covers over 37. 3 miles (60 km) per charge ready for long backcountry rides or the daily commute. 27Speed Precision Drivetrain Wide gear range lets you finetune

HKM-849939 Electric Mountain Bike

Engineered for the trail‑hungry adventurer — where robust electric power meets precision all‑terrain agility.

1000 W High‑Torque Motor

48 V brushless rear hub motor delivers instant acceleration and conquers steep grades with ease.

Extended Range Lithium Battery

Covers over 37.3 miles (60 km) per charge — ready for long backcountry rides or the daily commute.

27‑Speed Precision Drivetrain

Wide gear range lets you fine‑tune cadence on everything from rocky ascents to smooth pavement sprints.

Hydraulic Disc Brakes

All‑weather stopping confidence with minimal hand effort — safety that adapts to mud, rain, or dust.

18.6 – 31.1 mph (30 – 50 km/h) Top speed range · responsive throttle and pedal‑assist capability
Over 37.3 miles (60 km) Range per full charge · efficient energy management
44.3 – 51.6 lb‑ft (60 – 70 Nm) Torque output · immediate hill‑climbing muscle
≈ 3‑hour charge time Quick lithium‑ion recharge · minimal downtime between adventures

Motor & Battery System

The HKM‑849939 is propelled by a high‑efficiency 48 V 1000 W brushless rear hub motor. This configuration places power directly at the rear wheel, resulting in a direct, responsive feel that seasoned riders appreciate. The motor’s 60–70 Nm (44.3–51.6 lb‑ft) of torque translates into strong low‑speed pull and the ability to maintain momentum on technical climbs without excessive cadence loss. Whether you are powering out of a switchback or accelerating from a standstill at a trailhead, the delivery is smooth and predictable.

Energy is stored in a robust lithium‑ion battery pack, carefully positioned low on the frame to optimize the center of gravity. With a single charge, you can cover more than 37.3 miles (60 km) under typical mixed‑terrain riding conditions. Actual range will vary based on rider weight, terrain, assist level, and weather, but the system’s intelligent controller continuously balances performance and efficiency. Recharging takes just over 3 hours, so even a lunch stop can add meaningful range.

Drivetrain & Braking

The 27‑speed gear system gives you the mechanical range to complement the electric assist perfectly. On steep, loose climbs, shift into a low gear and let the motor’s torque do the heavy work while you keep a comfortable cadence. On fast descents or paved connectors, jump to the high end and enjoy efficient cruising. The drivetrain components are selected for durability and crisp shifting, so you stay focused on the line ahead.

Stopping power is handled by hydraulic disc brakes, a crucial upgrade for any e‑bike that sees mixed weather and demanding terrain. The sealed hydraulic system provides consistent lever feel and powerful bite, even when rotors are wet or dusty. Less finger fatigue means you can ride longer and react quicker. Combined with the grippy 27.5 × 2.4‑inch tires, the braking performance inspires the confidence to push your limits.

Frame, Geometry & Tires

The foundation of the HKM‑849939 is a lightweight 27.5‑inch aluminum alloy frame. Aluminum offers an excellent stiffness‑to‑weight ratio, meaning the bike feels lively and direct under power while remaining agile enough for technical singletrack. The frame geometry is tuned for a balanced ride — upright enough for comfort on longer excursions, yet aggressive enough to attack descents with control. Subtle but thoughtful touches like internal cable routing keep the silhouette clean and reduce maintenance.

Rolling stock consists of 27.5 × 2.4‑inch tires, a width that delivers a generous contact patch for traction without excessive rolling resistance. The 27.5‑inch wheel diameter (also known as 650B) strikes a sweet spot between nimble handling and rollover capability. The 2.4‑inch width enhances stability on loose gravel, hardpack, and asphalt, and the larger air volume acts as natural suspension, absorbing trail chatter before it reaches your hands and feet.

Technical Specifications

Motor Type48 V 1000 W Brushless Rear Hub
BatteryLithium‑Ion, High Capacity
Max Torque44.3 – 51.6 lb‑ft (60 – 70 Nm)
Top Speed Range18.6 – 31.1 mph (30 – 50 km/h)
Range per ChargeOver 37.3 miles (60 km)
Charge TimeApprox. 3 hours
Gears27‑Speed Drivetrain
BrakesHydraulic Disc
Frame MaterialAluminum Alloy
Wheel Size27.5 inches (650B)
Tire Width2.4 inches
Motor PositionRear Hub
DisplayLED Multi‑Function
Pedal Assist ModesMultiple Levels + Throttle
Cable RoutingInternal, Weather‑Sealed

* Specifications are based on standard configuration. Actual performance may vary based on rider weight, terrain, assist level, and environmental conditions.

Frequently Asked Questions

What is the maximum speed I can expect on flat ground?
The HKM‑849939 can reach a top speed in the range of 18.6 mph to 31.1 mph (30 km/h to 50 km/h) on level ground, depending on the selected assist mode, rider weight, and terrain. Many riders find the upper end easily achievable with throttle‑only operation on smooth pavement.
How far can I go on a single battery charge?
Under typical riding conditions with mixed pedal‑assist usage, expect more than 37.3 miles (60 km) of range. Factors such as rider weight, wind, tire pressure, and the level of electric assist chosen will influence the actual distance. Using throttle‑only mode at maximum speed may reduce range, while gentle pedal assist can extend it noticeably.
Is the battery removable for charging?
Yes, the lithium‑ion battery is designed to be easily removable. This allows you to charge it indoors or at your workplace while leaving the bike secured outside. The battery locks into the frame with a weather‑resistant mechanism and can be removed with a key for added security.
Does the bike offer pedal‑assist as well as throttle?
Absolutely. The HKM‑849939 features a multi‑level pedal‑assist system that senses your pedaling input and automatically adds power. In addition, a thumb throttle lets you engage the motor on demand — ideal for starting from a standstill, crossing intersections, or giving your legs a brief rest.
What type of terrain is this mountain bike suitable for?
It is built for a wide spectrum of surfaces: singletrack, fire roads, gravel paths, and paved streets. The 27.5 × 2.4‑inch tires, combined with the robust aluminum frame and powerful motor, make it equally capable on loose climbs and urban commutes. It is not designed for extreme downhill or freeride park use where full‑suspension bikes are recommended.

Purchase with Confidence

Free Shipping on All Orders Complimentary standard shipping to your doorstep — no hidden fees.
180‑Day Purchase Protection Extended coverage against manufacturing defects, giving you peace of mind for half a year.
30‑Day Money‑Back Guarantee Not satisfied? Return the bike within 30 days for a full refund, no questions asked.
24‑Month Warranty Service Comprehensive warranty coverage for two full years on the frame, motor, and battery.
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: 87408343859

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4.7 ★★★★★
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Michael Riley Jr.
Lake Worth, US
★★★★★ 5
Great product if you know what you’re getting.
Size: 4-tier, Style: wall mount&floor mount, Size: 4-tier, Style: wall mount&floor mount
It’s a great product if you know some details before you purchase. Specifically, for how much it cost it’s a great product. After assembly it is sturdy and will hold anything you’ll be displaying on it within reason. Speaking of assembly, it’s straight forward and intuitive if you’ve assembled other things such as a basic end table. What you should know: it does not come with instructions. It’s not hard to figure out but if you’re someone that needs instructions this product isn’t for you. That being said, if you see what you bought it’s not hard to look at the picture and assemble it. It does not come with the shelves. If you can’t buy them premise or make them then this product is not for you. Lastly, and this part is important to me, not all the pieces are straight after assembly. I used a level to mount the product on the wall and make each shelve straight. However, due to the factory produced screw grooves it is not perfectly straight. If you need it perfectly level looking this product is not for you. Refer to my pictures and you’ll see how the left bar looks crooked even though I mounted it level in every way. However, it gives it a more rustic, modern farmhouse feel that we wanted. Otherwise, a great product. I am still very happy for what we paid for. I would recommend the product and buy it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2022
D
Verified Purchase
Dee Davis
Birmingham, US
★★★★★ 5
Great product!
Size: 4-tier, Style: wall mount&floor mount, Size: 4-tier, Style: wall mount&floor mount
This is my second time purchasing these shelves. They are easy to set up, come with all the screws, brackets, and drywall anchors (if needed). I definitely love the quality, look and versatility. Being that my ceiling is slanted I couldn’t mount them from there but easily mount them to the surface beneath the shelving. My husband loved my idea and how they turned out! Highly recommend!
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Reviewed in the United States on August 8, 2024
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Verified Purchase
Greg Savignac
Cuba, US
★★★★★ 4
No Instructions - Easy to build and study
Size: 4-tier, Style: wall mount&floor mount
I ordered 3, and my wife loves the look of them. They seem to support a decent amount of weight. I supervised my 7 year old (55 lbs) as she scaled a single shelf bracket up the wall after it was mounted, without the planks. You do need to have some amount of handiness to be looking at buying as it does not come assembled, and does not have the wood planks with it. A little learning curve I had. Keep the rods only hand snug, not tight, snug, and then as you put it up to the wall adjust as needed to get the heights and widths right to the opposing shelf. There is also only 8 pipe brackets to hold the shelves down (2 per shelf) and I did not realize this at first and assumed I had 16 (4 per shelf). I had to go back and fix.
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Reviewed in the United States on January 5, 2021
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Kryn
Massapequa, US
★★★★★ 5
Game changing storage!
Size: 4-tier, Style: wall mount&floor mount
I love the shelves. I got to use my own wood which was a reclaimed piece that I found and sanded and then stained. I'm so proud to see them on the shelves. It got so much clutter corralled from around the room and put in one place where it all looks good displayed together. The support pieces are very good quality and I found this to be very good value for the price. I'm very happy with this item.
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Reviewed in the United States on February 25, 2024
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Verified Purchase
Anthony 64
Phoenix, US
★★★★★ 5
Good all around, some imperfections on threads difficult to screw together
Size: 4-tier, Style: wall mount&floor mount
I received a complete product as advertised, it's a solid steel design with everything you need to mounted included. One small issue I encountered is that the pieces screw together but they wouldn't screw all the way it felt difficult and possibly if forced the steel might crack. Unfairly enough other pieces did completely screw in. So it's probably because of imperfections on the threads.
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Reviewed in the United States on May 9, 2021

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