ECOTRIC Coolboy Electric Bike 26" Fat Tire 750W Electric Mountain Bike 48V 12.5AH Removable Large Battery Adult Electric Bicycles Beach Snow Mountain Bike Hydraulic Brakes Dual Shock Absorber
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Availability:
In Stock.
Arrives
Jul 26 – Jul 30
Color: Black 2 750W (UL Model)
Features
- 4 WORKING MODES- A powerful and cost-effective mountain e-bike. 1. Pedal Assist Mode: The motor will assist you with a moderate amount of power as you pedal the bicycle. 2. Fully Electric Mode: Twist the throttle in any increments of power you desire to power the motor of the bicycle. 3. Manual Mode: Pedal the bicycle normally as you would any bicycle. 4. Booster Model: The Ebike will travel at 6m/ h, easy to push
- POWERFUL MOTOR- 750W brushless geared hub motor. Strong power, high efficiency quieter, lighter, smoother
- ADAPT TO VARIOUS TERRAINS- 26 X 4.0 fat tire, durable all condition road, more than safe, blance, fast and stable for your cycling. Max loading: 260 LB. Please pay attention to the size and weight of the bike in case it is too big or heavy for you to ride. (Total weight: 86.09 lb). Maximum vehicle speed: 25 ( Rider weight<260LBS, flat road and full power). You can easily ride over beach, snow, gravel, rain, dirt, sand and even ice and enjoy the ultimate electric bike adventure
- LCD DISPLAY- Five pedal assist levels. Speed limit can be set, one key repair function, line length: 1500. 48V/ 22A brushless controller. Updated: There is a USB port under the meter, allows you to charge your phone while traveling. (The holder to install the phone need be purchased by yourself)
- SAFE & COMFORTABLE- Adjustable hydraulic disc brake suspension fork. Reliable hydraulic disc brakes possesses a strong and responsive braking force in different conditions. The hydraulic suspension fork brings a softer shock absorption effect to riding and 7-speed adjustable hardness front suspension helps you get the comfort on different roads
- UL CERTIFIED- This model is UL certified product. UL certifications demonstrate that our products have been tested to applicable safety standards. UL's recognized regulatory expertise provides critical credibility to authorities and the marketplace. Bring our products to market more efficiently and clearly differentiate them on crowded shelves with certification from the safety science leader
Bike Type: Electric Bike
Age Range (Description): Adult
Brand: ECOTRIC
Number of Speeds: 7
Color: Black 2 750W (UL Model)
Wheel Size: 26 Inches
Frame Material: Aluminum
Suspension Type: Dual
Special Feature: Digital Display
Included Components: Electric Bike, Charger
Bike Type: Electric Bike
Age Range (Description): Adult
Brand: ECOTRIC
Number of Speeds: 7
Color: Black 2 750W (UL Model)
Wheel Size: 26 Inches
Frame Material: Aluminum
Suspension Type: Dual
Special Feature: Digital Display
Included Components: Electric Bike, Charger
Size: Large
Brake Style: Disc
Specific Uses For Product: Mountain, Off-Road, Beach, Snow
Theme: Bicycle
Style: All-season
Model Name: C-HAM26S900-MB-Z
Power Source: Electric motor (rechargeable battery-powered)
Wattage: 7.5E+2
Wheel Material: Aluminum
Lithium Battery Energy Content: 6E+2 Watt Hours
Seat Material Type: Plastic
Maximum Weight Recommendation: 2.6E+2 Pounds
Assembly Required: Yes
Bicycle Gear Shifter Type: Thumb
Is Autographed: No
Number of Handles: 2
Skill Level: Intermediate
Fender Material: Plastic
Manufacturer: ECOTRIC
Brand Name: ECOTRIC
Material: Aluminum
Part Number: C-HAM26S900-MB-Z
Hand Orientation: Right
Date First Available: July 20, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 26 – Jul 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Blue 750W (UL Model)
The media could not be loaded. Impressive Performance and Value – Exceeded Expectations! I’ve put over 200 miles on this bike across a variety of terrains, from mountain trails to soft sand and it continues to exceed my expectations, especially for the price. Pros: • The 26” x 4” fat tires make riding over obstacles effortless. Whether it’s sand, gravel, or rough trails, this bike handles it all with ease. • It’s a tall bike, which makes it an excellent fit for riders over 6 feet tall. • The battery life is impressive. I regularly ride 30 miles on assist level 5 and still return with two bars of power left. • The seat has a beach cruiser design with built-in springs, making long rides very comfortable. • The ergonomic grips include palm rests, which make throttle control more comfortable and natural. Cons: • The handlebars can slip if too much downward pressure is applied. • I had to adjust the front brake to prevent it from rubbing. • The seat arrived with a tear, but customer service handled the issue quickly and professionally. • At around 200 miles, I noticed the rear axle nut had loosened significantly, something to watch out for and regularly check. • The brake lever retention screw tends to back out, requiring occasional tightening and adjustment. Overall: I’m really happy with this bike. It rides well, feels solid, and turns heads everywhere I go. I’ve gotten a lot of compliments, and with a few minor adjustments, it’s been a great investment.
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Reviewed in the United States on June 9, 2025 by Tommy
Color: Orange 750W (UL Model)
Super happy about this purchase! Lokks great, rides well and is really fast! Buying a second one for my wife so she can keep up.
Reviewed in the United States on June 20, 2025 by Lance Lee
Color: Blue 750W (UL Model)
Alright, gather 'round folks, let me tell you about my ECOTRIC Coolboy Electric Bike with its 26" Fat Tires – this thing is the Chuck Norris of e-bikes! I've had it for about half a year, and it's more reliable than a squirrel gathering nuts for winter. First off, hitting the local trails on this bike is like strapping a rocket to your back, but with way better handling. Mud, rocks, small bushes – I'm pretty sure it would ride over a sleeping bear if I asked it to. The fat tires? They grip the ground like they've got personal beef with gravity. But wait, the plot thickens – one of the batteries went kaput. I was like, "Oh no, my electric steed has a flat tire!" But here's where ECOTRIC becomes the hero of our story. I contacted their customer service, half-expecting the usual runaround. Instead, what I got was service so fast and friendly, it's like they were my neighbors, just waiting to lend a cup of sugar. Or, you know, a bike battery. In a nutshell, if you're looking for an e-bike that'll turn your trail rides into epic quests and back you up with customer service straight out of a feel-good movie, the ECOTRIC Coolboy is your ticket. It's not just an e-bike; it's a faithful trail-tackling companion with a support team that's got your back. So, grab your helmet and embrace your inner trail warrior – with the ECOTRIC Coolboy, the adventure is just beginning!
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Reviewed in the United States on January 28, 2024 by Sean Callahan Sean Callahan
Color: Blue 750W (UL Model)
This model should be named The Beast, although The Hammer is pretty intimidating, as is the bike itself. These bikes need to come in a 24" wheel option, they are too tall with 26" wheels for anyone less than 6' something, unless they are used to riding motorX motorcycles and tippy-toeing. I'm 5'11" and had to replace the suspension seat post to get the seat low enough to mount the ride on tippy-toes (added expense #1 of several). The Hammer is not a ride to be considered usable without the epower, it's beyond "sturdy". With the battery on the bike, it is too heavy to lift out of the box safely. TAKE THE BATTERY OFF WHILE IT IS STILL IN THE BOX, or rip off the side of the box. You might as well get the charger out and start charging the battery straight away. The assembly is uncomplicated enough to be done on a 6 pack after me and Tom did the NFL and PGA on a Sunday afternoon. Though check your work in the morning, after you are fully lucid and the battery has charged overnight. When you slide the charged battery onto its rail in the morning, you must make sure the rail is properly adjusted so that THE BATTERY SEATS FULLY FLAT ON THE CONTROLLER WITH THE PRONGS FULLY INSERTED. This is critical since the rail may not come adjusted in the box and may lead to trying something silly like opening the control box looking for loose wires. THE HANDLE-BARS ARE A PROBLEM! Either the headset can't be tightened to keep from moving or the handlebars themselves slip in the bracket. I was able to tighten the handle-bars enough (it takes nearly snapping the hex wrench), although I ended up using epoxy to secure the headset angle. This is not right and the manufacturers need to correct the issue. Riding the Hammer is a blast, it goes off-road with ease, though the chain rattles too much for rock hopping. There is a learning curve to get the riding technique right. It's too heavy to safely, in traffic, go from a full stop without using the throttle by only gearing down. The ride is closer to riding a moped than riding a bicycle and it is easy to get into trouble by thinking you are riding a bicycle. 20 mph sounds slow, yet for someone without motorcycle experience, it's fast for a bicycle. For those with motorcycle experience, you will want more speed after your first ride and be looking for how you can remove the 20mph speed restrictor. I'm looking at adding a powered fat tire front wheel as well, though I should likely just ride the 250 thumper if getting there fast is an issue. Excercise wise-fagitaboutit making a difference on your iWatch. You will burn more calories than you do on the couch, but you'd burn more by cooking and serving dinner for four, or walking your dog down the street and back. Word up. The Hammer is a fun, fun, fun machine, other ebikes are better suited to commuting and shopping. They won't inspire the tendencies of adventurous individuals to see how far it will go. I can't imagine what my husband would do to my new Hammer. By all means, when it comes to getting the brakes and derailleur set up perfectly, take it to your local bike shop to professionally get 'er done right. Or order the expert assembly. Getting the brakes to not rub is critical, although the 7 gears are really not that important. The bike is not ridable for long on human power alone. Maybe at 70, I have a different perspective than you will about that. First and foremost, buy a helmet and protective gear, never ride the Hammer without proper footwear and clothing. Think of it as a motorcycle, 20 mph road rash is serious, your head will split if it hits the pavement or a boulder at 20mph. You will need fenders, I was covered in sand after a beach ride (super fun), if it were mud it would not have been so fun. I ordered after-market fat tire mountain bike fenders, they look like motorX fenders. You will likely want a rack on the back, and most definitely something louder than the insulting little bell included. No real woman or man would ever attach that insipid bell to any bike-unless it's used to goose pretty girls and boys on the beach. I bought a horn from Amazon. You will want a lock that is up to protecting your substantial investment-nothing stops an angle grinder though, so you should be aware that your Hammer will be lusted after, and take appropriate cautionary measures. You might be lusted after as well-or more lusted after, as in my case- as you ride your beast. THIS IS A SERIOUSLY COOL MACHINE, I can't wait to get rid of the goofy race decals and paint it camo to match my boat AND ditch the speed restrictor. I might even get Tom off his Harley if it will go faster. In conclusion, The Hammer was a 70th birthday present from my husband. It is not a "plug and play" machine, ladies-you might need your man, I did not. I am a big girl and my sweety pie can't turn a wrench without skinning up his knuckles and cant play golf. You should expect to spend up to $500 after you put it together. YET, IT IS WELL MADE AND WELL DESIGNED! It should last for many years as a beefy adventure bike and an eye-catcher. JUST LIKE YOU!!!
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Reviewed in the United States on October 20, 2021 by Thomas Tierney