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Mongoose Aztec Mens and Womens Fat Tire Bike, 18-Inch Steel Frame, 26-Inch Wheels, 4-Inch knobby tires, Red

4.5 4.5 out of 5 stars 158 ratings
$510.88

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Size Chart
US Mens Fat Tire Bicycle
Brand SizeRider Height (in)Frame Size (in)Wheel Size (in)
2663 - 731826
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Purchase options and add-ons

Bike Type Mountain Bike
Age Range (Description) Adult
Brand Mongoose
Number of Speeds 7
Color Red
Wheel Size 26 Inches
Frame Material Alloy Steel
Suspension Type Front
Special Feature fat tire
Included Components Bicycle

About this item

  • Aztec adult fat tire bicycle is designed to be ridden on a variety of terrain but is great for cruising on the beach. Supersized 26 inch tires will fit best on riders 5'3" to 6'1"
  • 7-speed twist shifter provides quick, precise gear changes
  • This adult bicycle has 26 inch alloy Super wide rims with front and rear disc brakes
  • Featuring a thread less headset and 3 alloy piece crank
  • Mountain bikes comfort saddle keeps you going even on long rides

Frequently bought together

Mongoose Aztec Mens and Womens Fat Tire Bike, 18-Inch Steel Frame, 26-Inch Wheels, 4-Inch knobby tires, Red
$510.88
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Sunlite Cloud-9 Bicycle Suspension Cruiser Saddle, Cruiser Gel, Tri-color Black
$34.19
Get it as soon as Wednesday, May 1
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Sold by Bicycle Addiction and ships from Amazon Fulfillment.
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Mongoose Dolomite Fat Tire Mountain Bike, for Men and Women, 26 Inch Wheels, 4 Inch Wide Knobby Tires, 7-Speed, Adult Steel F
$441.99
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From the manufacturer

Mongoose, Aztec, Mongoose Aztec, Fat Bike, Fat Tire, Mountain Bike, Trail Bike, Durable, Big Tires

All-terrain 4" tires can handle it all

Mongoose, Aztec, Fat Bike, Fat Tire Bike, MTB, Trail, BMX
Year-round riding

Fat tire biking truly knows no bounds. Thanks to those extra wide tires and a durable steel frame, these bikes are built to handle even the toughest conditions. The Aztec will crunch through snow, glide over sand, and it won't slip in rainy weather. So what are you waiting for? Get yourself a fat bike and enjoy the limitless freedom of year-round riding.

Fat Bike Fun!

The Mongoose Aztec is ready for the trail

Get off your couch and into the action with a fat tire bike that's built for durable all-terrain riding. Super-sized knobby tires like these create a wider contact patch with the ground, providing you with increased traction on tough trails. Increased traction yields more control, which means hugging turns tighter and owning tricky trail sections. 4" wide tires provide added traction, but there is also more tire clearance and stability for smooth riding on snowy and sandy trails.

Mongoose 50th

Product Description

The Mongoose Aztec 26-Inch fat tire beach cruiser is designed to be ridden easily on a wide variety of terrain thanks to oversized tires for stability & traction. Cruiser frame geometry adds a comfortable but athletic riding position. The Aztec is equipped with a supersized beach frame with plenty of clearance to conquer any terrain with the Mongoose supersized beach cruiser 26-Inch x 4-Inch knobby tires. Alloy 4-Inch wide wheel set with disc brakes for easy stopping, low rise handlebars for comfort and stability and 3 piece cranks, the 7-speed gearing with rear derailleur make this the perfect bike to go conquer anything.

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Mongoose Aztec Mens and Womens Fat Tire Bike, 18-Inch Steel Frame, 26-Inch Wheels, 4-Inch knobby tires, Red

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
158 global ratings

Customers say

Customers like the ease of assembly, quality, value, and ease of riding of the bicycle. They mention that it's fun to ride, good for the money, and a great workout. Customers are also satisfied with performance, and size. Opinions are mixed on durability.

AI-generated from the text of customer reviews

13 customers mention13 positive0 negative

Customers find the bicycle easy to assemble. They also say it's of good quality.

"Perfect size, smooth ride. Love the oversized tires. Fairly easy to assemble. Feel like this will last for years...." Read more

"Very easy to assemble, took me less than 1 hr to complete by myself...." Read more

"...However, it is very durable and was easy to assemble out of the box. I did change the seat to a more comfortable one...." Read more

"...It was super easy to assemble and I didn’t have to make any major adjustments. Just handlebars and seat height for the most part...." Read more

12 customers mention12 positive0 negative

Customers are satisfied with the quality of the bicycle. They mention that it is a great bike, easy to assemble and fine tune, and has a smooth ride. Some appreciate the oversized tires and the great paint scheme.

"Perfect size, smooth ride. Love the oversized tires. Fairly easy to assemble. Feel like this will last for years...." Read more

"...I did change the seat to a more comfortable one. Overall, a great bike and fun to ride." Read more

"...-bearings on crank, wheels run smooth and quiet. If one ever goes bad, parts are very available and inexpensive.Cons: only one......" Read more

"...Just handlebars and seat height for the most part. The bike rode nice, I took it out for about 10 miles, no issues...." Read more

9 customers mention9 positive0 negative

Customers appreciate the value of the bicycle. They say it's a good buy for the money.

"...Caught it on sale and has to grab it. Good buy!" Read more

"...Super happy with the bike for the price." Read more

"...Also you really can't beat the reasonable pricing of this bike. Most others sell for close to $700...." Read more

"...Worth the extra money. The weight of the bike is wrong in the product description. I’m guessing it’s around 45lbs...." Read more

7 customers mention7 positive0 negative

Customers find the bicycle fun to ride and a great workout.

"...Overall, a great bike and fun to ride." Read more

"This bike is a blast to ride! You can go over curbs with the wide tires, through mud, etc...." Read more

"Love this bike. It’s a great workout and even tho is hard to ride it after a few times your legs get used to it ... not recommended for big hilly..." Read more

"Price went up after I purchased it, but what a great deal. It is fun to ride." Read more

6 customers mention6 positive0 negative

Customers are satisfied with the performance of the bicycle. For example, they mention it's a beautiful bike that works great, has no issues, and handles pretty well. Some say the gears work well.

"...the bike can definitely handle different types of surfaces and handles pretty well...." Read more

"...The bike rode nice, I took it out for about 10 miles, no issues. Super happy with the bike for the price." Read more

"...the lake, and at times thru ice and snow on the ground, the bike performs as promised." Read more

"This bicycle is beautiful and works great." Read more

5 customers mention5 positive0 negative

Customers like the size of the bicycle. They mention that it's the best fat tire bike ever, has oversized tires, and is a nice starter bike.

"Perfect size, smooth ride. Love the oversized tires. Fairly easy to assemble. Feel like this will last for years...." Read more

"Nice starter Fat Bike..." Read more

"Best fat tire bike ever!..." Read more

"This is a really, really good start into fat tire bikes..." Read more

12 customers mention8 positive4 negative

Customers are mixed about the durability of the bicycle. Some mention that it's pretty durable, and seems to be of good quality. They also say that the frame is better exercise and provides more stability. However, others say that it broke easily, and some parts are bent or warped.

"...The bike itself is pretty durable, I've crashed a few times and it holds up to the abuse well with no damage...." Read more

"...nothing is ever going to be 100% all of the time so okay the chain broke, not the end of the world and personally it doesn't take away from the..." Read more

"...However, it is very durable and was easy to assemble out of the box. I did change the seat to a more comfortable one...." Read more

"Love this bike! It’s built like a tank & really turns heads when riding it...." Read more

I dig it...
5 Stars
I dig it...
I'm a big dude so I was looking for a big bike. I'm 6'2 275, and this bike was more than big enough for me. Very easy to assemble. I changed out the tiny seat and bought an extension for the handlebars. First bike in years and loving it.
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Top reviews from the United States

Sylvia Coleman
5.0 out of 5 stars Love It
Reviewed in the United States on October 13, 2023
Verified Purchase
Perfect size, smooth ride. Love the oversized tires. Fairly easy to assemble. Feel like this will last for years. Caught it on sale and has to grab it. Good buy!
One person found this helpful
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Joleen Runk
5.0 out of 5 stars Nice starter Fat Bike
Reviewed in the United States on April 27, 2021
Verified Purchase
Very easy to assemble, took me less than 1 hr to complete by myself. I'm 5'1 and I can ride this bike easily, it probably weighs 40lbs at the most and I can easily lift it. I originally got it to bikejore with my 3 dog dryland mushing team and it's perfect for that as the bike can definitely handle different types of surfaces and handles pretty well. It is a absolute pig on any hills though, so you definitely either need to stick to level trails or be prepared to work your a$$ off to make it up even a little hill. The bike itself is pretty durable, I've crashed a few times and it holds up to the abuse well with no damage. Overall I'm very happy with this bike, will definitely be getting a more comfortable seat though ;)
Customer image
Joleen Runk
5.0 out of 5 stars Nice starter Fat Bike
Reviewed in the United States on April 27, 2021
Very easy to assemble, took me less than 1 hr to complete by myself. I'm 5'1 and I can ride this bike easily, it probably weighs 40lbs at the most and I can easily lift it. I originally got it to bikejore with my 3 dog dryland mushing team and it's perfect for that as the bike can definitely handle different types of surfaces and handles pretty well. It is a absolute pig on any hills though, so you definitely either need to stick to level trails or be prepared to work your a$$ off to make it up even a little hill. The bike itself is pretty durable, I've crashed a few times and it holds up to the abuse well with no damage. Overall I'm very happy with this bike, will definitely be getting a more comfortable seat though ;)
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2 people found this helpful
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LouA
5.0 out of 5 stars Best fat tire bike ever!
Reviewed in the United States on July 12, 2018
Verified Purchase
I love this bike I use it everyday it is great because it won't slip on anything! Easiest bike I have owned to ride on a beach. The bike is not a speedster but speed is not what it is designed for. The wide tires create more rolling resistance than a narrow tire bike and it weighs about 40 pounds. However, it is very durable and was easy to assemble out of the box. I did change the seat to a more comfortable one. Overall, a great bike and fun to ride.
15 people found this helpful
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Tanya Ferguson
4.0 out of 5 stars This is a really, really good start into fat tire bikes
Reviewed in the United States on January 6, 2019
Verified Purchase
For the price, it's quite remarkable entry into a new world of fat tire off road biking. Now that I've got a few miles on it, its time for a review. Note: We own some bike shop bikes. If I like this fat tire "sport", I may upgrade to a bike shop bike. But for now, this bike has gone beyond my expectations. I am so glad I bought the Mongoose. I can get into this sport and figure out what I like and dislike.

I got this bike for a GREAT price from Amazon before XMas. (<250$) With a $13 dollar upgrade, it goes from OK to AWESOME. More on this in a bit.
The pros:
-prime shipping!
-shipping box protected bike well. And it was well packaged. Thank you Mongoose!
-Bike had special protective plastic wraps and had no shipping damage at all.
-This bike has a GREAT paint scheme. IE, looks swell out of the box.. No visible defects in paint.
-Disc brakes. stops well.
-Shimano index shifters. Of happy note: The index shifting already adjusted well and was flawless out of the box.
-Assembly and adjustments to brakes, seat, bars, etc was one hour of pure family fun.
-bearings on crank, wheels run smooth and quiet. If one ever goes bad, parts are very available and inexpensive.
Cons: only one...
-Out of the box, this bike comes with a very modest rear gear set. I was a bit disappointed. We have some hills in our riding trail (of course), and I ended up walking some of them. IE, low gear not near low enough.
The rear #1 gear is only a 26 tooth. For $13 fixed this. I bought this from amazon: "Shimano TZ500 7-Speed 14-34t Freewheel." FYI: It takes the Park tools FR-7 to remove the OEM falcon freewheel (gears) on the back. I opted to visit my local bike shop and they were eager to help and only charged me $3 to remove my old freewheel. No "snob" attitudes here! Tipped them $2 and left the shop happy.
FYI: NO TOOL necessary to install the new Shimano freewheel. Just lube the threads, screw on snug (act of riding will tighten), and adjust your index shifting just a bit. As expected, after install, index shifing needed a bit of adjustments. Mine wouldn't shift into low with out some very minor adjustments to the cable tension/stops. Took about 10 minutes of adjustment including watching video on how to do it and a short test drive)

NOW, these are the gears the bike should have came with. The new 34tooth mega low is just that. Now you can climb hills with ease. Turns this bike into SO MUCH FUN.
It was ridable before...but it is so much more fun to ride now if your terrain includes hills.
Parting thought: For under $250 bucks...how can you go wrong?
35 people found this helpful
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Scott
5.0 out of 5 stars Fun to ride, easy to assemble
Reviewed in the United States on April 22, 2020
Verified Purchase
My bike arrived today and within an hour I was out riding. It was super easy to assemble and I didn’t have to make any major adjustments. Just handlebars and seat height for the most part. The bike rode nice, I took it out for about 10 miles, no issues. Super happy with the bike for the price.
One person found this helpful
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Joey X
5.0 out of 5 stars I dig it...
Reviewed in the United States on January 7, 2024
Verified Purchase
I'm a big dude so I was looking for a big bike. I'm 6'2 275, and this bike was more than big enough for me. Very easy to assemble. I changed out the tiny seat and bought an extension for the handlebars. First bike in years and loving it.
Customer image
Joey X
5.0 out of 5 stars I dig it...
Reviewed in the United States on January 7, 2024
I'm a big dude so I was looking for a big bike. I'm 6'2 275, and this bike was more than big enough for me. Very easy to assemble. I changed out the tiny seat and bought an extension for the handlebars. First bike in years and loving it.
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2 people found this helpful
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RP_Steve
5.0 out of 5 stars Great Bike For The Money!
Reviewed in the United States on July 16, 2019
Verified Purchase
My wife has been wanting a fat tire beach cruiser. I found this one at a bit of a sale price, but was impressed that it included the features of the 7-speed derailleur and front and rear disk brakes. It came partially assembled and final assembly was very straight-forward. I gave the Comfort rating 4 stars because the bike is set up for more of a performance bike, like mountain biking. Not as comfortable for my wife as a cruiser. So I have invested in a different seat and handle bars. Now the bike is exactly what she wanted. Just got back from the beach, she rode it quite a bit and is very happy!
6 people found this helpful
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Andrew Girard
3.0 out of 5 stars Bike had issues... Amazon was great... Pacific Cycle has been non-existant
Reviewed in the United States on April 10, 2020
Verified Purchase
Purchased this bike last week after doing the normal research on comperable bicycles. It arrived sooner than expect and went together in about an hour with a little adjusting. Took it out for my first ride and it was nice... until i got back home. I go to take off again and ride a little more and snap... chain snaps. Now I consider myself to be a normal person in these situations. nothing is ever going to be 100% all of the time so okay the chain broke, not the end of the world and personally it doesn't take away from the bike since... well chains break (typically after a while not the first 2 hours out of the box) but hey nothings perfect. I chat amazon since I didn't feel like waiting on the phone. Amazon as usual is great. They offer a credit, thanks. Then they tell me to contact Pacific Cycles (parent company of mongoose) and tell them as it should be under warranty. I email pacific cycles. 24 hours go by, I email pacific cycles again. Then I figure "Hey maybe I'll just call them". I call them and they say 'email us for faster service since COVID 19 is messing with everyone'. Here I am days later still no response. Which surprised me since during my research I read a lot of the questions everyone posted about the Mongoose Bikes and Pacific cycles was right on answering questions and being super helpful.

To recap: Bike was easy to put together. Rode Good. Chain Broke. Amazon was good. Pacific Cycles has been a ghost town with no response about broken chain.
7 people found this helpful
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