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Mongoose Malus Adult Fat Tire Mountain Bike, 26-Inch Wheels, 7-Speed, Twist Shifters, Steel Frame, Mechanical Disc Brakes, Multiple Colors

4.5 out of 5 stars 719 ratings

Price: $449.99
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Color: Matte Black
Matte Black
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  • Steel mountain-style fat tire frame
  • Rear derailleur for smooth gear changes
  • Front and rear disc brakes for crisp stopping and precise speed control
  • Fat, knobby 4-inch wide mountain tires roll over anything in their path; 4-inch alloy rims are light and strong
  • Alloy a-head stem and mountain handlebar keep you in complete control out on the trail
New (4) from $449.99 & FREE Shipping.

Frequently bought together

  • Mongoose Malus Adult Fat Tire Mountain Bike, 26-Inch Wheels, 7-Speed, Twist Shifters, Steel Frame, Mechanical Disc Brakes, Mu
  • +
  • Sunlite Cloud-9 Bicycle Suspension Cruiser Saddle, Cruiser Gel, Tri-color Black
  • +
  • Cloud-9 Cruiser Select Saddle, 10.5" x 10.75", Black Soft Touch Vinyl
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From the manufacturer

Product description

The bike that people will notice. The tires are huge. Watch as it glides over sand, dirt and snow. See the ease has as it bounces over embankments and boings over rocks. The Mongoose Malus 26-inch fat tire bike has arrived to save you from the doldrums and put a smile on the faces of all those you pass by. Built with 4-inch tires (earning the name fat) on a supersized beach cruiser frame and there is plenty of clearance to make it rideable on virtually any terrain. Plus, the Malus has 7-speeds with a rear derailleur and front and rear disc brakes so it still has its vein of practicality. Fat tires are all the rage and the Malus is a great bike to add to your stable, and to get out there and have a little fun on. There is nothing you can't do on a Mongoose and almost nowhere you can't go on the Malus.

Product details

Color:Matte Black
  • Department ‏ : ‎ Unisex-adult
  • Date First Available ‏ : ‎ February 8, 2017
  • ASIN ‏ : ‎ B01N2BKLHT
  • Customer Reviews:
    4.5 out of 5 stars 719 ratings

Customer Questions & Answers

Customer reviews

4.5 out of 5 stars
4.5 out of 5
719 global ratings

Top reviews from the United States

Reviewed in the United States on May 19, 2020
Color: Silver/BlackVerified Purchase
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5.0 out of 5 stars This bad boy is heavy duty! Love it!
By Tre on May 19, 2020
Look I’m a very big guy! Have not been on a bike in almost 3 decades. I researched and researched what bike to get that would even come close to supporting me. There were several that were $2k-$4K. But based on reviews and price I got this bike and rode it the day I got it. It has already exceeded my expectations. I did upgrade the seat (cloud 9) and the pedals. I will more than likely upgrade the handle bars. But it took this 500lb behemoth of a guy up and down the block with ease. I will update as the wear and year takes place but I’m excited. Tires held up great. I was shocked at just how big they are. I read a lot of complaints about the weight of the bike but I could care less right now. It seems fine for what I need it for. Let the journey begin.
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673 people found this helpful
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Reviewed in the United States on October 3, 2016
Color: Silver/BlackVerified Purchase
253 people found this helpful
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Reviewed in the United States on November 15, 2015
Color: Silver/BlackVerified Purchase
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4.0 out of 5 stars Nice intro fat bike, great value
By A&B E on November 15, 2015
:::Many updates so please scroll to bottom to see whole review:::

So I've only ridden this bike for about 60 miles so far but here are my initial thoughts: This is a fun bike to ride, I haven't taken it off-road but did ride on some rough side hills for a bit and it rides nice. It's a nice looking bike, much better colors than its brother. As you'll see below I've made a number of upgrades to the bike to make it much more capable. Each is pretty easy to do with basic mechanical skills. If you are interested in what others have done to their bikes search for the thread "The dolo in the (semi) wild".

Suggested setup:
Before you ride it the first time, grease and adjust everything-I pulled the wheels apart and regreased everything. They will come from the factory with a minor amount of grease and most likely will be overtightened.

Upgrades:
[[ASIN:B0081UV7LC Vuelta MTB Comp Crankset]]
[[ASIN:B006JA8WEG Ibera Bicycle Triangle Frame Bag, Large]]
[[ASIN:B000H87PUI Sunlite Cloud-9 Bicycle Suspension Cruiser Saddle, Cruiser Gel, Tri-color Black]]
[[ASIN:B001CK0ETE YST Sealed BSA Cupset w/Bearings English Threads]]
[[ASIN:B003RLNOKC Shimano MF-TZ31 Tourney Freewheel (14-34T Mega 7 Speed)]]
[[ASIN:B00VFD7VZS Kenda Juggernaut Tire 26 x 4.5" Steel Bead Black]]
[[ASIN:B00M2LMH9W Vee Tire Co. Snowshoe XL Fat Bike Tire: 26" x 4.8" 120tpi Folding Bead Silica Compound Black]]

Tools Needed:
[[ASIN:B001KUU1DU Sprocket Remover/Pedal Wrench]]
[[ASIN:B001VS1M20 Park Tool Crank Puller for Square Taper Cranks]]
[[ASIN:B001B6RGXG Park Tool FR-1 Freewheel Remover for Shimano Freewheels]]

Edit:21Nov2015
Took it for its maiden ride in the snow. The modifications were great upgrades. I stayed in the lowest gear most of the ride. Was a lot of fun. Tires were running 6 in the front and 8 in the rear. Might need to drop a little lower for additional traction.

Edit:18Jan2016
After about 40 miles of snow riding I have decided to get new tires for increased float and traction. The stock tires are good all around tires but I easily broke them loose in the lower gears. I installed the 4.5 inch juggernaut tires above. There is a good amount of clearance between the frame and chain in the lowest gear. If we get more snow this year I'll be pumped to see what they can do.

Edit: 9Jul2016
I have almost 300 miles on the bike now and I still like this bike a lot. Back in February I rode a fat bike race and it performed well, I on the other had didn't do so great. I've been pulling a cargo trailer and bike trailer a lot the last few weeks and it's a nice ride. I'm really starting to love fat biking especially since it makes all the roads smoother and I don't have to worry about seams in the road to throw me off. I'm planning to take this on RAGBRAI for a day so I'm feeling comfortable taking the bike on long trips though this is significantly farther than any previous one.

Edit: 29Oct2016
The last year with this bike has been great. I took it on one day of RAGBRAI and it survived 74 miles of fun. I have started to pull my cargo trailer more often and it does a great job conquering the hills with up to 120 lbs behind me. Not much more to report other than at 650 miles it's still riding well. Time to get ready for winter riding.

Edit: 25Dec2016
Just installed the 4.8" [[ASIN:B00M2LMH9W Snowshoe XL]] tire that I studded by hand using flat top bike studs. The tire is slightly smaller than the 4.5" Juggernaut I run in the summer. Great traction with this combination, I didn't even know I was riding ice until I put my foot down to check.

Edit: 3Nov2017
Wow, it's been awhile since the last update but the bike is still going strong at 1,522 miles. No issues to report.
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355 people found this helpful
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Reviewed in the United States on May 10, 2018
Color: Silver/YellowVerified Purchase
65 people found this helpful
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Top reviews from other countries

Brian K. Hahn
4.0 out of 5 stars ... the price this little Malus Fat Bike is very good value. If you buy it
Reviewed in Canada on January 12, 2018
Color: Silver/BlackVerified Purchase
3 people found this helpful
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Cliente de Amazon
5.0 out of 5 stars Excelente!!
Reviewed in Mexico on January 25, 2019
Color: Silver/BlackVerified Purchase
Larry Hull
5.0 out of 5 stars Five Stars
Reviewed in Canada on December 4, 2017
Color: Silver/BlackVerified Purchase