Mongoose Malus Mens and Women Fat Tire Mountain Bike, 26-Inch Bicycle Wheels, 4-Inch Wide Knobby Tires, Steel Frame, 7 Speed Drivetrain, Shimano Rear Derailleur, Disc Brakes
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This item is eligible for return within 30 days of receipt
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Availability:
Only 1 left in stock, order soon!
Arrives
Jun 18 – Jun 23
Color: Tan
Features
- Comfortable and stable ride with a steel mountain-style fat tire frame and 26-inch wheels, fit to riders 5'4" to 6'2" tall
- Seamless gear transitions with the 7-speed shifter, ensuring smooth and effortless changes for a more enjoyable riding experience
- Ensure crisp stopping and precise speed control with the front and rear disc brakes, adding an extra layer of safety to your rides
- Conquer any terrain effortlessly with the fat, knobby 4-inch wide mountain tires that effortlessly roll over obstacles, while the light and strong 4" alloy rims provide durability and agility
- Stay in full control out on the trail with the alloy A-head stem and mountain handlebar
Bike Type: Mountain Bike
Age Range (Description): Adult
Brand: Mongoose
Number of Speeds: 7
Color: Tan
Wheel Size: 26 Inches
Frame Material: Alloy Steel
Suspension Type: Rigid
Special Feature: fat tire, mountain bike
Included Components: Mongoose Bike
Bike Type: Mountain Bike
Number Of Speeds: 7
Suspension Type: Rigid
Additional Features: fat tire, mountain bike
Brake Style: Disc
Specific Uses For Product: Trail
Power Source: Pedal power
Bicycle Gear Shifter Type: Trigger
Derailleur Configuration: Rear
Bicycle Drivetrain Type: chain drive
Is Autographed: No
Color: Tan
Style Name: Mountain
Wheel Size: 26 Inches
Size: 18-Inch Frame
Item Weight: 19.5 Kilograms
Is Assembly Required: Yes
Minimum User Height: 64 Inches
Age Range Description: Adult
Brand Name: Mongoose
Included Components: Mongoose Bike
Model Number: R5714D
Model Name: Mongoose malus
Model Year: 2020
Global Trade Identification Number: 39
UPC: 038675200739
Manufacturer: Pacific Cycle, Inc.
Warranty Description: Limited Warranty
Item Type Name: Bike
Frame Material Type: Alloy Steel
Wheel Material: Alloy
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 18 – Jun 23
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: Silver/Black
Simply put, this is a fantastic fat tire bike for the incredible price of less than $250. I've already put in over 60 miles in the last couple of weeks, and it's just a joy to ride. I was pleasantly surprised at the power/torque this bike has when tackling hills. I was a bit worried about how it would handle steep inclines given its weight, but man... the first steep elevated trail bridge I climbed, I easily outpaced others who were riding multi-geared road bikes. This puppy can also easily take off from a standstill with little effort. I was originally looking for a bike with a smooth ride for suburban/trail biking, and this has proven to be exactly what I wanted. This is by far the least expensive bike I've ever purchased, but it's also the MOST FUN I've ever ridden! I'm sure the $2,000 - $6,000 fat tire bikes would smoke this in a heartbeat, but seriously... for under $250, this thing over-delivers! Rides really well on paved and gravel paths. Plus, it's always a hoot to hear the various comments from others who've never seen a fat tire bike before! Is it perfect? No. The one thing I would recommend that everyone upgrades immediately is the seat. I know that bike seat comfort is highly personal and subjective, but I found the factory seat to just be rock hard and uncomfortable for any ride over a few miles. So for another small investment of $45 for a quality seat, I'm sitting comfortably at 20+ mile rides with no complaints. Pros: - Low cost but solid quality - FUN to ride. There's nothing like fat tire biking. - Nice power/torque. Easy hill climbing and quick take offs. - Fairly easy to assemble. Cons: - Factory seat is a bit hard. Recommend replacing ASAP. - Mine was missing a nut for the front tire assembly... minor inconvenience though. Summary: - Looking for an intro to fat tire biking? BUY THIS. You won't regret it.
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Reviewed in the United States on July 24, 2017 by W. Bey
Color: Matte Black
I've been riding my Mongoose Malus Fat Tire Mountain Bike since September 2021, and it has been an absolute game-changer for my outdoor adventures! 🚵♂️ Durability and Build Quality: The bike's robust frame and high-quality components have withstood all kinds of terrain, from rocky trails to sandy beaches. It feels incredibly sturdy and reliable, giving me confidence on every ride. Fat Tires: The fat tires are a standout feature. They provide excellent traction and stability, making it easy to tackle challenging surfaces like snow, mud, and loose gravel. Plus, the ride is surprisingly smooth, even on rough paths. Comfort: The ergonomic design and comfortable saddle make long rides enjoyable. I appreciate the thoughtful design that minimizes fatigue, allowing me to ride longer without discomfort. Performance: The bike's performance has been consistently impressive. The gears shift smoothly, and the brakes are responsive and reliable. Whether I'm climbing steep hills or cruising on flat trails, the Mongoose Malus handles it all with ease. Aesthetics: On top of its performance, the bike looks fantastic. The sleek design and bold colors always turn heads and earn compliments from fellow riders. Overall, the Mongoose Malus Fat Tire Mountain Bike has exceeded my expectations in every way. It's a versatile, durable, and stylish bike that's perfect for anyone looking to explore the great outdoors. Highly recommended!
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Reviewed in the United States on October 1, 2024 by Bryan
Color: Silver/Black
I wish I could give two separate grades: one for the quality of the bike (excellent -- five stars) and another for the quality of the shipping (terrible -- 1 star). The assembly was easy, and the bike rode very smoothly after I got it all put together and rode around for six miles. The only problem was that I had difficulty shifting downward to any gear below the 4th. I then noticed that the bike was damaged in two areas: slight warping of the two plates that surround the big gear between the pedals, and warping of detrailer metal plates and the nearby left dropout area of the frame. When I examined the cardboard box the bike was shipped in I found "bruises" (circular tears around 6" in diameter) adjacent to where the two areas of damage were. It appears to me that the package had been impacted in a way that caused the two widest areas of the bike inside the box to be hit hard. Perhaps the package had been leaning against a wall in a warehouse and a fork-lift backed into it. Except for the slight problem with shifting to the lowest three gears the bike was still functional so I wasn't very concerned about these problems until the next day, when I started to ride the bike and shifted from 4th gear to first and continued pedaling. I then heard clashing of metal parts and felt the chain derail. I stopped the bike, got off it and examined the rear derailer. I found it had become so warped that it no longer could function (the uppermost gear of the derailer mechanism had warped inwards towards the spokes to an angle around 35 degrees away from straight up, making it impossible for that gear to move the chain). I had to walk the bike back to my house, which was around 100 meters away. A harsh lesson seems apparent: I should have done something to correct the warps in the derailer parts before riding the bike any more. I've been able to correct the bend to the rear left dropout. I removed the rear wheel and placed the bike on its left side, then rested the left chain stay on a stack of three house bricks (such that the left rear dropout extended a couple of inches over the edge of the pile of bricks). I then grabbed the left dropout with a large adjustable wrench and pushed hard downwards. The dropout (which had been bent inwards towards the rear tire around 3mm at the dropout's end) became straight again. The warps in the two disks around the pedal gear don't seem to need straightening The warps in the long metal plate of the rear derailer appear to me to be far more difficult to correct. I tried to use the amazon site to ask the bike maker to send me photos of a normal, undamaged rear derailer to help me make the needed corrective bends. The amazon site seems to allow no way for one to send such a request to the bike's maker. I used the option of asking to make a return to send my simple request (for photos) with the message-entry blank, making it clear in my message that I only wanted some photos, and did NOT want to return anything. While doing this the web site bizarrely logged me off twice (I'm certain I did nothing to warrant this).
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Reviewed in the United States on June 2, 2018 by Jefferson Opal
Color: Silver/Yellow
This bike really surpassed my expectations. I based my purchase off of other reviews found here on Amazon and thought, well this bike should be OK and expected there to be things that I would simply have to deal with since it was an entry-level priced Fat Tire Bike. However, it worked perfectly right out of the box. Now I did do some minor customizations to suit my preferences, but they honestly weren't needed. Those changes were that I replaced the stock seat with a larger more comfortable one. The stock one is of pretty high quality. It's just a bit small and hard like all of the other stock bike seats out there. I swapped out the straight mountain bike style handlebars for custom cruiser handlebars to allow for a more erect sitting position. In changing out the handlebars I found that unless you have immense patience and perseverance then it's easier to simply replace the stock handgrips with new ones. I chose comfort grip handgrips that help alleviate hand fatigue or carpal tunnel syndrome. They worked perfectly. One thing to note here is that I didn't need to change out the shifter lines or brake lines at all like others said when they modified their bikes. I found that simply rerouting the cables slightly left ample line length on them to reach the new handlebars. Before you ride I suggest using some Light Spray Oil On the chain and other moving surfaces. Except for the brakes of course. I also suggest pumping up the tires to the maximum pressure listed on the sidewall if you happen to be riding on paved roads or happen to be a person like me who weighs over 200 pounds because the tires do have a lot of flex at lower pressures and will bottom out on the rim at lower pressures with riders weighing above 200 pounds. The gears do shift really smoothly. However, I will admit that having only 7 speeds is taking some getting used to, but for the average person who goes off road only occasionally, seven speeds are enough. It also does not feel like it's a heavy bike at all. It's obviously a bit heavier than my Schwinn aluminum frame mountain bike, but that is a serious off-road mountain bike. I bought the Mongoose Malus for cruising parks, boardwalks, and my neighborhood. That is where this bike seems to shine because it is really comfortable and an uncomplicated ride. If you're looking to get onto a Fat Tire bike to see if you like it but don't want to break the bank then I can comfortably say that the Mongoose Men's Malus Cruiser Bike is a fine way to do that. If you're a professional bike rider looking for some fat tire powerhouse bike to storm through incredible terrain then you certainly won't be interested in this bike, but then again hardcore bikers looking for specific name brand bikes probably aren't shopping for their bikes on Amazon anyway. Take this review for what it is. One person's opinion of a bike that they like for what it is... A solid entry-level Fat Tire Bike for the Average Joe. Peace.
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Reviewed in the United States on May 10, 2018 by F
Color: Silver/Black
Just purchased another one. I am converting these to e-bikes. Inexpensive, robust a very good entry level fat bike. And an especially good candidate for my use. Nothing lightweight about it. But you're adding a heavier motor and battery. I like the steel frame because it is strong and I can cut and weld the bottom bracket. That cures the motor mount problems (weld it to the frame) and chain alignment issues. I gear these especially low, the chain wheels have no offset so I cut the bottom bracket to the required width. Everything else that is of questionable quality gets replaced. And surprisingly that is very little. Brake pads, rear axel, ball bearings at both wheels and inner tubes. And these parts were kept on the bike until the heavier, more powerful conversation wore them out. Everything else is good. I rode it as a bicycle for a bit before the conversion, even put on a 3x mt bike chainring to lower the gearing, to high stock. It was fun. But I'm 9000' in the Rockies and the conversion was the main intent. For the money you cannot go wrong.
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Reviewed in the United States on December 15, 2022 Reviewed in the United States on December 15, 2022 by William Gerkens
Color: Silver/Black
I was actually in the yard when my product was delivered. I small framed lady started to pull it off her truck and I offered to help because the box was bigger than her. No damages on arrival. Product was packed well. Assembled in about 20mins because I was fumbling through the instructions. I bought this because I'm a large guy at 6' 325lb and needed something to ride around the neighborhood with my year old. This thing is much harder to turn than a normal bike and hard to get rolling compared to a normal size bike, but thats probably due to the much wider wheels. I won't deduct points for that, since it's my fault for being fat and needing wheels this big. For value I give 5 stars because I caught mine on sale for $200 and a week later it was $500. So I guess I got lucky? I let my son ride it and now it sound like everytime the wheel goes around 1 revolution, it is dragging on the brake. Not sure if he tried to go offroading with it or not. Since I don't know what actually caused this I won't deduct a point either, but I would like to add that it doesn't feel like the best quality bike I've ever owned, and I've only ever bought my bikes from Wal mart before this one. I recommend if you're a larger person that needs something that won't pop when you sit on it, and you can catch it at a good deal.
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Reviewed in the United States on August 27, 2023 by JamesK
Color: Silver/Black
Mongoose is the cheapest bike brand I could find and it certainly weathered well for the year I've been using it. It has great traction in snow, ice, and sand but mostly bought the fat tire bike to support my hefty weight. It took some getting used to at first but eventually got the ease of turning corners quickly.
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Reviewed in the United States on August 7, 2025 by Casey Crayne
Color: Silver/Black
Pros: Rides well so far (after adjustments/upgrades). Looks really nice. Cons: Constructed using cheap/low quality parts. Front wheel axle arrived in horrible shape (threads were stripped one one side, appeared they grabbed a different nut out of nowhere since the threads were horribly misaligned. Had to replace the axle before could even finish putting it together. Seat it comes with is very uncomfortable. Customer service... don't hold your breath. They might as well be non-existent. My initial response was to return it, but after reading some other reviews about how better it was after swapping out certain components, I decided to go that route instead. Summary: Gave 3 stars since it's actually a decent ride once you upgrade the cheap components.So far I've swapped out the seat, pedals, and handlebar... most likely upgrading other parts soon. (Without upgrades, it's definitely 1 star). Decent buy if you're willing to invest a little extra and doing upgrades on your own. If you aren't or do not live anywhere near a bicycle shop/mechanic - you'd probably be better off buying a pricier model.
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Reviewed in the United States on July 15, 2018 by JW