20" Mongoose Massif Boys' Fat Tire Mountain Bike, Black/Yellow

20" Mongoose Massif Boys' Fat Tire Mountain Bike, Black/Yellow
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Model: R1746WM
Brand: Mongoose
(72)
2 stores
1 Products

Product Details

The Mongoose Massif 20-Inch Boys' Bike has huge four-inch wide tires that let this fun bike roll over all sorts of obstacles. Twist design shifters allow the rider to change gears quickly and easily through seven speeds assisted by a Shimano rear derailleur. The black/yellow boys' bike features disc brakes that can bring the massive tires to a stop quickly and effectively in most any riding conditions. The aluminum steel frame is both strong and durable and allows young boys to explore their surroundings on a true all-terrain bicycle. The bright yellow alloy rims are lightweight and will ensure that the bike and rider can be seen at all times. The Mongoose Massif 20-Inch Boys' Bike also features yellow handle grips and the familiar Mongoose logo in yellow on the front. Great news! If you select Site to Store delivery, you can call your local store as complimentary assembly may be offered at that location.

20" Mongoose Massif Boys' Fat Tire Mountain Bike, Black/Yellow: Frame: Aluminum/steel Mongoose boys' bike gearing: 7 speeds with Shimano rear derailleur for all types of riding Brakes: dual disc brakes provide all-condition braking Tires: super-sized 20" x 4" tires Rims: alloy 4" wide rims for lightweight durability Twist shifters change gears easily 3-piece crank provides added durability Some assembly required Dimensions: 56"L x 27"W x 38"H

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Last Updated: 2025-09-14 12:51:59

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Product Specifications

Technical Details

Manufacturer -
Brand Mongoose
Item model number R1746WM
Color Yellow
Weight -
Height -
Depth -

Additional Product Information

Product Id 2901808
User Reviews and Ratings
3.9 (72 ratings)
3.9 out of 5 stars
UPC 038675174689

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20" Mongoose Massif Boys' Fat Tire Mountain Bike, Black/Yellow
Reviews: 72
app.ratings: (72)
Price:
$211 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(3)
Reviewed in the USA on Dec 13, 2016

I absolutely love this bike! My only complaint is the disc brakes. I read in other reviews that people who assembled the bike themselves had a problem with the disc brakes rubbing. This is why I had it assembled at Walmart. I am hoping that I can take it back up to fix it rather than have to go to a bike shop. Time is running out before Christmas and this wasn't something I wanted to add to my list.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Jul 19, 2016

My son was was uber excited for his new bike. He even got compliments going out to the car. It is Mongoose & the wide tires are an extra bonus for him. He & his bike has swag, now to show off!

Anonymous • Review provider: walmart.com
(1)
Reviewed in the USA on Jun 18, 2016

-Cons -Paid extra for fast shipping and product came 3 days late, packaging was poor and product was damaged and unusable -upon assembly disc brakes were sticking -Bicycle was really heavy for a 6-8 yr old Pros -Product assembly was easy with correct tools had it together in 2hrs. - walmart processed reimbursement for shipping and product quickly. SUMMARY Might have been ok if it wasn't damaged. Disc brakes sticking was a troubleshooting issue. Too many things went wrong and I needed this bike on time for the 8yr olds birthday party. Dissapointed

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Nov 25, 2014

I ordered this bike for my 12 year old grandson's Christmas gift. It arrived right on time. It was unassembled BUT even this 65 year old grandma assembled it correctly the first try. The tires were fully inflated and ready to go. The instructions were easy to understand and the tools needed were the ordinary variety. I am very pleased with the bike and I'm sure my grandson will absolutely love it!!

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Oct 22, 2014

Took a while to get via site to store. They assembled the bike for me-no extra charge. In just a few minutes my son was able to figure out the handle brakes. The bike has a smooth ride and handles well.

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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