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Mongoose Argus ST & Trail Fat Tire Mountain Bike for Adult Youth Men Women, 20 to 26-Inch Wheels, Mechanical Disc Brakes, Steel or Aluminum Frame and 7 or 16-Speed Options

  • Based on 589 reviews
Condition: New
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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, May 8
Order within 22 hours and 33 minutes
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Style: Trail


Color: Green


Size: 17-Inch Frame


Features

  • Fat tire mountain bicycle perfect for all-terrain adventures, 26-inch wheels, and medium frame to fit riders 5'7" to 5'10" tall
  • 17-Inch aluminum fat tire hardtail frame and alloy fork with 135 mm spacing for a strong, stable ride
  • 16-speed, 2 x 8 drivetrain with Rapid Fire shifters provide smooth gear changes
  • Mechanical disc brakes supply quick, effective braking even in slippery conditions
  • 26 x 4 inch knobby mountain fat tires provide excellent stopping power and tons of traction in sand and snow

Bike Type: Mountain Bike


Age Range (Description): Adult


Brand: Mongoose


Number of Speeds: 16


Color: Green


Wheel Size: 26 Inches


Frame Material: Aluminum


Suspension Type: Front


Special Feature: fat tire, Aluminum Frame, mountain bike


Included Components: Bike


Bike Type: ‎Mountain Bike


Age Range (Description): ‎Adult


Brand: ‎Mongoose


Number of Speeds: ‎16


Color: ‎Green


Wheel Size: ‎26 Inches


Frame Material: ‎Aluminum


Suspension Type: ‎Front


Special Feature: ‎fat tire, Aluminum Frame, mountain bike


Included Components: ‎Bike


Size: ‎17-Inch Frame


Brake Style: ‎Disc


Specific Uses For Product: ‎Trail


Item Weight: ‎21.3 Kilograms


Style: ‎Trail


Model Name: ‎Argus


Power Source: ‎Pedal power


Wheel Material: ‎Aluminum


Seat Material Type: ‎Nylon


Warranty Type: ‎Limited


Assembly Required: ‎No


Bicycle Gear Shifter Type: ‎Trigger


Is Autographed: ‎No


Number of Handles: ‎1


Minimum User Height: ‎67 Inches


UPC: ‎038675223677


Manufacturer: ‎Pacific Cycle, Inc.


Item Package Dimensions L x W x H: ‎61 x 30 x 10 inches


Package Weight: ‎21.32 Kilograms


Brand Name: ‎Mongoose


Warranty Description: ‎Limited Lifetime


Material: ‎Aluminum


Suggested Users: ‎unisex-adult


Date First Available: September 3, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 8

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.

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Top Amazon Reviews


  • Perfect bike for a back country bow hunter
Style: Trail Color: Green Size: 19-Inch Frame
Where I chase elk, E-bikes aren't allowed. I agree with the rule. Too many hunters are super lazy these days, shooting from the road, from a truck, or trespassing through private property. I digress... Anyway, this bike is relatively light. But not the cheap kind of light. The kind of light that comes from lots of R&D where a focus was geared towards building with the highest quality parts, instead of adding unnecessary comforts like shocks.(tires properly inflated are all the suspension you should need... more parts equals more stuff to break or go wrong leaving you stranded or pushing your bike through the back country) the frame is rigid, basic, and bombproof. It shifts through all gears effortlessly, rides smooth and brakes on a dime. Mongoose has been around for a while. I don't think the are going anywhere. There are definitely less expensive options, but you get what you pay for. I am happy with my purchase, and am sure this bike will help me fill my meat freezer for years to come. ... show more
Reviewed in the United States on November 26, 2024 by Chris

  • Such a great bike all around
Style: Trail Color: Green Size: 19-Inch Frame
This bike is even better than I was expecting. I got the 19” and it’s great. I’m on the taller side of 6’2 and the bike fits me perfectly. I’ve ridden it both with the saddle all the way down and with it fully extended, and it’s great both ways. I switch it up for the different types of riding I do. I also stripped almost all of the stickers off, and I just kept the main “Argus trail” on the top tube and the “M” on the head tube. Everything else is gone and it looks so good imo. Everything works smoothly, and the seat is even somewhat comfortable. And it just looks so awesome. Solid parts and construction, and it came safety wrapped to the absolute limit. Foam sheets wrapped around everything and taped, then cardboard paper wrapped around that and taped, then zip tied together in a box with spacers so nothing moved around. The gears might need some tuning which is normal, but if you don’t know how, there’s videos on YouTube that will walk you through the process. A++ all around and great value for the money Update: This bike is still amazing. I’ve ridden through just about everything you can imagine, except for snow cuz it isn’t winter yet. ... show more
Reviewed in the United States on August 5, 2023 by Pauly.FB6 Pauly.FB6

  • Mongoose 20” Fat Tire Bike
Style: St Color: Grey Size: 10.5-Inch Frame
This has been a pretty great bike. The derailed was a little out of wack but was able to fix easily. My boy gets a lot of compliments on it. Perfect size for my 8 year old with room to grow on it.
Reviewed in the United States on February 13, 2025 by BigShow

  • Great entry fat bike, but tires need deeper tread
Style: St Color: Copper Size: 17-Inch Frame
This bike is a good value for the money, and I would buy it again as a entry level fat bike for my child getting into fat biking with me. However it’s not perfect. 1) assembly is not easy. If you don’t have experience assembling a bike it will be tough for you. After I assembled it, the shifting had to be adjusted quite a bit which someone unfamiliar with these adjustments would be totally lost. Same with the disc brakes rubbed badly and I had to adjust the placement of them. 2) it is very heavy, just know that. Comes into play when transporting on a bike rack or climbing an incline, especially for a teen getting into biking. 3) the fat tires are 4.0” wide which is nice, but the tread depth is not very deep. This translates to not the best grip on snowy trails. I’d say maybe half the depth of the tread knobs compared to what came on my Trek Farley fatty. My son slipped out and fell 3-4 times in areas I have grip for days on my bike. But new tires are very expensive, at least $100/tire, so upgrading tires on this price-point bike is hard to justify. If it came with knobbier tires it would be an extremely excellent entry snow bike!! 4) it is very good looking and I’d recommend it for a cheap intro into fat biking. But be weary of the tires if you’re using it on groomed snow trails, but it’s cool! ... show more
Reviewed in the United States on January 5, 2021 by C C

  • The green and black looks so good
Style: Trail Color: Green Size: 17-Inch Frame
Awsome bike
Reviewed in the United States on March 21, 2025 by John A.

  • Love the fat tires!
Style: St Color: Grey Size: 10.5-Inch Frame
We bought this bicycle for our 10 year old son. He had outgrown his and needed an upgrade so he could keep up with us on the trails. This bike couldn't be more perfect for him. He loves the fat tires because it looks a lot like mom and dad's bikes. The gears were a change of pace for him as his prior bike did not have them. However just a couple of bike rides around the block and he had it figured out. We appreciate the disk breaks as he can stop on a dime. The color is super cool too! He originally wanted an all black bike to match ours but he took one look at this grey color and changed his mind! Assembly was fairly simple. It took approximately 30 minutes and he was out in his first ride. ... show more
Reviewed in the United States on June 22, 2023 by Pammie Pammie

  • Highly impressed
Style: Trail Color: Green Size: 19-Inch Frame
I have yet to get a good ride in but so far I'm astounded. I'd like my LBS to look it over and adjust but the test ride I did amazed me. I'm coming from a KHS 4 season 1000 that was stolen. Insurance wouldn't replace and I didn't have enough to replace so I bought what I could afford and didn't think I would immediately regret. I have 30 days to test it out, but so far I'm completely astounded. I put it together, and did a few adjustments. And then took it around the yard. First impressions were that it is honestly much more comfortable than my KHS, though I haven't done a 20 mile ride yet. I haven't checked figures, but it seemed a little lighter and more maneuverable? For being over half the price of the KHS this bike so far seems well built and way better value for money. I wouldn't hesitate to buy again, but I'll let a few rides decide if that is true or not. ... show more
Reviewed in the United States on October 11, 2022 by Eric Kreitzer

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