SKU: 43568823891

HKM-488339 Mid Motor Electric Bike with Aluminum Alloy Frame and 48V 13AH Lithium Battery, 7-Speed Gears, Hydraulic Disc Brake

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Description

HKM-488339 Mid Motor Electric Bike with Aluminum Alloy Frame and 48V 13AH Lithium Battery, 7-Speed Gears, Hydraulic Disc BrakeHEDATX HKM 488339 Mid Motor Electric Bike Precision mid drive engineering for the modern commuter balanced, powerful, and relentlessly efficient. Experience a new standard in urban mobility with the HKM 488339. Its centrally mounted brushless motor and integrated battery create a harmonious blend of performance and aesthetics. Whether slicing through city traffic or exploring country lanes, every component is tuned to deliver a ride that feels

HEDATX HKM-488339 Mid Motor Electric Bike

Precision mid-drive engineering for the modern commuter — balanced, powerful, and relentlessly efficient.

Experience a new standard in urban mobility with the HKM-488339. Its centrally mounted brushless motor and integrated battery create a harmonious blend of performance and aesthetics. Whether slicing through city traffic or exploring country lanes, every component is tuned to deliver a ride that feels natural, responsive, and exhilarating.

Mid-Drive Precision

Central motor placement lowers the center of gravity, resulting in superior balance and handling.

Extended Range

Travel up to 37.3 miles (60 km) on a single charge with the efficient 48V 13Ah lithium battery.

Responsive Speed

Reach speeds between 18.6–31 mph (30–50 km/h), adaptable to your riding style and conditions.

29" Stability

Large wheels absorb bumps effortlessly, ensuring a smooth, controlled ride on varied surfaces.

7-Speed Adaptability

Conquer steep inclines or enjoy flat cruising with a reliable 7-speed drivetrain.

Hydraulic Disc Brakes

Confident stopping power in wet or dry conditions, with low maintenance hydraulic actuation.

Engineered for the Ride

The HKM-488339 is not just an electric bike — it is a carefully orchestrated system where every component works in synergy. The mid-drive motor leverages the bike's gears, optimizing torque and efficiency across all speeds. This translates to a ride that feels intuitive, whether you're starting from a stoplight or maintaining a steady cadence on open roads.

Mid-Drive Motor Dynamics

Unlike hub motors, the mid-drive unit delivers power directly through the chain, allowing you to take full advantage of the 7-speed gear system. This means higher efficiency on hills and a more natural pedaling feel. The 250W brushless motor provides smooth, near-silent assistance, while advanced sensors measure your pedaling input to deliver proportionate power — no sudden surges, just seamless acceleration.

Integrated Lithium Power

The 48V 13Ah (624Wh) battery is seamlessly integrated into the downtube, preserving the bike’s clean silhouette while protecting the cells from the elements. This high-density pack delivers a real-world range of over 37.3 miles (60 km) per charge, depending on terrain and assist level. Intelligent Battery Management System (BMS) safeguards against overcharge, over-discharge, and temperature extremes, extending overall battery life.

Hydraulic Braking Confidence

Hydraulic disc brakes offer superior modulation and fade-free performance. Whether navigating rainy city streets or descending a winding trail, the 180mm rotors provide consistent, powerful stopping. The sealed hydraulic system requires minimal maintenance, ensuring your brakes feel crisp and responsive mile after mile.

7-Speed Drivetrain

Adapt to every gradient with a wide-range 7-speed gearing system. The combination of electric assist and mechanical gears gives you the flexibility to spin comfortably up steep climbs or push higher speeds on flats. The precise shifting ensures you're always in the optimal cadence zone.

Why a Mid-Drive Motor?

Optimized Weight Distribution

Placing the motor at the bottom bracket centralizes mass, dramatically improving balance and cornering stability compared to rear-hub designs.

Efficient Power Transfer

The motor drives the chain directly, using the bike’s gears to multiply torque when climbing and reduce motor RPM at speed — extending range and reducing wear.

Natural Pedal Feel

Torque and cadence sensors precisely mirror your input, delivering assistance that feels like an extension of your own strength — never artificial.

Long-Term Reliability

Mid-drive systems are renowned for their durability. Serviceable components and lower heat buildup contribute to a longer lifespan under demanding conditions.

Technical Specifications
Frame 6061 Aluminum Alloy
Motor 250W Brushless Mid-Drive
Battery 48V 13Ah (624Wh) Lithium-ion
Range Up to 37.3 mi (60 km)
Top Speed 18.6–31 mph (30–50 km/h)
Transmission 7-Speed Shimano Tourney
Brakes Hydraulic Disc, 180mm Rotors
Wheels 29" x 2.1" All-Terrain
Weight 48.5 lbs (22 kg)
Max Load 265 lbs (120 kg)
Charge Time 6–8 hours (Standard Charger)
Display LCD with Speed, Battery, Assist Level
Frequently Asked Questions
How does the mid-drive motor improve my riding experience?
The mid-drive motor delivers power directly through the bike’s chain, allowing the motor to benefit from the same gear ratios you use. This means stronger hill climbing, better efficiency, and a more natural pedal feel compared to hub motors. It also centralizes weight for superior balance and handling.
What is the real-world range I can expect?
Range depends on terrain, rider weight, assist level, and pedaling input. In typical mixed conditions with moderate assist, you can expect up to 37.3 miles (60 km). Riders using lower assist levels and contributing more pedal power may exceed this figure.
Is the battery removable for charging?
The battery is elegantly integrated into the frame for aesthetics and protection. While it is not designed for quick daily removal, it can be accessed for service by a qualified technician. The bike includes a charging port directly on the frame for convenient at-home or office charging.
What kind of maintenance do the hydraulic brakes require?
Hydraulic disc brakes are largely self-adjusting and require minimal routine maintenance. We recommend an annual brake fluid check and pad inspection to ensure optimal performance. The sealed system provides consistent lever feel in all weather conditions.
How does the 7-speed gear system complement the motor?
With 7 gears, you can select a lower gear for steep climbs (allowing the motor to operate at an efficient RPM) or a higher gear for flat roads and higher speeds. This synergy reduces strain on both the motor and your knees, enhancing overall ride comfort and battery life.
Purchase with Confidence

Free Shipping on All Orders

Enjoy complimentary delivery on every purchase. Your HKM-488339 will be carefully packed and shipped directly to your door at no extra cost.

180 Days Purchase Protection

We stand behind our quality. Should any manufacturing defect arise within 180 days of delivery, we will repair or replace the affected component at no charge.

30 Days Money-Back Guarantee

If you’re not completely satisfied within 30 days of receiving your bike, return it in original condition for a full refund. Your satisfaction is our priority.

24 Months Warranty Service

Ride with peace of mind. The HKM-488339 is covered by a comprehensive 24-month warranty covering the frame, motor, battery, and electronic components against defects.

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: 43568823891

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4.9 ★★★★★
Based on 22 reviews
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Product Reviews
S
Verified Purchase
S S.
Port Orchard, US
★★★★★ 5
Nice watch
Color: Black/Digital/Black/Green
Good watch
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
P
Verified Purchase
@photobrow
Belleville, US
★★★★★ 5
Compared to g-shock?
Color: Black/Yellow
Firstly random public reviews can be comical…”it’s has a battery, terrible, One star” or “I don’t like yellow, one star” omg peoples do better. I’ll review this while comparing to an older style of g-shock from the same era. I’ll start by saying this timex rocks, for me in my mid 50’s it’s so retro and nastalgic, brings back memories, I may have even owned this model back in the day. What’s great about it- the display, larger digits than the typical g-shock and they are super crisp, clear and easy to read. The indiglo is awesome. This is the most accurate quartz watch I have aside from the atomic g-shocks that adjust themselves daily. I prefer a chunky watch and the g-shocks do a better job in that department. i feel this watch is rugged, but I’d still give the nod to g-shock in this department. 200M water resistance is the gold standard and this watch has it which I love for peace of mind for any water based activities. This is a 5 star watch at a great price. I still love some aspects of a g-shock better but its just preference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
T
Verified Purchase
Tanya
Lexington, US
★★★★★ 5
Everybody loved the high-tech style and amazing functionality
Color: Black/Yellow
I'm not a Timex fanboy, and I've had my fair share of problems with the Expedition line, so this review is my honest opinion as a man who's worn Armitrons and Timexes since I was 10. I remember in 1992 when the Timex Ironman Triathlon with Indiglo was first launched - My older brother got one, then me and my neighbor friends. Everybody loved the high-tech style and amazing functionality. Even Bill Clinton was rock'n this watch, for those who don't remember. Quite simply, this is the perfect watch at a great price, in my opinion. Perfect as a gift for any man, and I think the original black/olive drab/yellow coloration is still the coolest. In this day and age of smartphones, it still pays to have this watch. The alarm is less annoying sounding than a cellphone, and doesn't wake up the entire house. To turn it off, just tap the watch, no more reaching for the phone or alarm clock. Timer comes in handy for anything; timing my kids' timeouts when they get in trouble, 15 minutes room clean-up times, etc. Chrono is fun for anything you wanna use a stop-watch for. I set the second time zone for Vietnam time. It really is a million times easier to use this watch for all of its functions than reaching for a smartphone or alarm clock, etc. If you;ve been relying on your phone for a few years as a watch/chronograph/timer/alarm - you'll be so glad you finally got a watch like this. I've never tried a smart-watch, however I feel those are not as necessary,durable or practical as a real watch. Other Timex watches I've used were freakin' trash - couldn't throw em away fast enough. Might as well open the box while holding it over a trash can, so the watch can fall right in when you open the box. That's my experience with the Expedition line-up. Back to this watch: The only thing I wish this watch could do is measure activity thermogenesis (calories expended throught the day) or work as a pedometer, which some smart-watches and other devices can do. I also cannott decide if I like this new, slightly larger, heavier/thicker design of the Ironman Triathlon over the 1990s design. The 90s models styling was "tight to death'. Star-split buttons were seperated. The mode button was yellow. Overall more compact and bi-cultural;by that I mean it looked great as an athletic watch or a politician, business man wathc. This new model is bigger, better ingress/shock resistance, and more of an athletic style over all, and is a little less colorful. I almost went with the G-shocks, but they still just look like crap and are waay to expensive. Sure, they have some better features, can survive WWIII, but I am a traveler. I need a watch that can work in the dark in any environment. The G-shocks are often using some kind of solar battery crap and rely on cathing a signal from an American automic clock in Colorado - good luck with that while your in Thailand on vacation.
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Reviewed in the United States on December 31, 2016
B
Verified Purchase
B Lehman
Carnegie, US
★★★★★ 5
Great Product. Easy to use.
Color: Black
This is the third running watch I've had and it's my first Timex. I've owned to Casio's before (one being a g-shock), but after finding my g-shock to bulky and cluttered, and loosing my other Casio I picked up from Walmart, I decided to look around to find a new durable running watch. I run cross country and track so going from a generic stopwatch to a 30-lap chrono watch has been sweet. The lap timer is easy to use and the display is big enough to take a glance and see my split and total time side by side. The recall feature works perfectly and you even have some room to adjust the settings to configure your lap display how you like it. My favorite thing about this Timex, is its ease of use. The only time I've had to look at a manual is when I first got the watch. The display updates as you go through the various modes to show you what the new buttons mean so there is never a question on how to set the time or recall your laps. This watch is extremely durable. It has already taken a few shots and I've swam with it on several times. The screen and body have held up nicely and I don't foresee any problems with them in the future. The strap is great also. I really like the notch that keeps the excess strap in place. The countdown timer and the alarm both work as expected. The timer has some different settings and is easy to set up. My only disappointment with the timer was that you can't set different intervals. Like if you want to run for five minutes and walk for two your going to have to invest a little more for a watch that allows different intervals. The alarm works well too, and the beeping successfully wakes me up in the morning, but I'm not a heavy sleeper so some may find it too quiet. Overall this watch is durable, easy to use, and can track splits really well. The watch is a little bulky if you are used to a more minimalist watch but for me the weight was perfect, and for the price you can't go wrong with this watch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2013
H
Verified Purchase
Hathi
New York, US
★★★★★ 4
Trusted Brand Delivers Again
Color: Black/Yellow
I had my previous Timex watch for 30+ years and it finally died after getting wet, so I replaced it with the closest model I could find to it. PROS: - Has the basic functions I needed: Clock, 2nd Time Zone Clock, IndiGlo backlighting, Alarm, Timer, Stopwatch. Allows me to leave phone at home and just take this out. - Easy to set time/date/etc. Can turn alarm on / off easily. Buttons for timer/mode switching work fine. - Clear display so easy to read. The backlighting makes this even better. - Can swap out the band (I put mine on a Chums' "The Band" that I like) if the new one takes 19mm pins. CONS: - The only thing I dislike is it is heavier than my old Timex. A little bulkier too. Not annoyingly so but noticeable enough for me to comment on it here.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025

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