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

51 reviews ratings
Q&A
By: Mongoose
Walmart #: 551828635
20" Mongoose Massif Boys' All-Terrain Fat Tire Mountain Bike, Black/Yellow
Rollback
$197.00
FREE shipping
FREE pickup
Loading options...
Care plan (optional):
Sold by Walmart.com

FREE shipping available

 

Shipping

Showing options for 20147
Type
Arrives
Cost
Value
Data unavailable
Free
Standard
Data unavailable
$4.97
Expedited
Data unavailable
$35.35
Rush
Data unavailable
$45.88

FREE pickup available

 

Pickup

Showing options for 20147
Location
Buy online for pickup
  • 7 speeds with Shimano rear derailleur
  • Dual disc brakes
  • Aluminum/steel frame
  • Gifting note: This item ships in the manufacturer's original packaging. If intended as a gift, the packaging may reveal the contents.

    About this item

    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.

    About this item

    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

    Specifications

    Speeds: 7-Speed
    Bike Type: Boys Bike
    Age Start: 8 Years
    Age End: 12 Years
    Battery Type: Does Not Contain a Battery
    Primary Color: Black
    Multi Pack Indicator: No
    Model No.: R1746WM
    Shipping Weight (in pounds): 46.0
    Product in Inches (L x W x H): 56.0 x 27.0 x 38.0
    Assembled in Country of Origin: Imported
    Origin of Components: Imported
    Walmart No.: 551828635
    Show

    Customer reviews

    Customer Reviews | 51 reviews | 3.9 out of 5

    4.0 stars

    51 reviews | 3.9 out of 5

    4.0 stars

    51 reviews | 3.9 out of 5

    82%
    Would recommend to a friend
    5 stars
    24
    4 stars
    14
    3 stars
    3
    2 stars
    2
    1 stars
    8
    1-5 of 51 total reviews
    82%
    Would recommend to a friend

    Age

    Gender

    Fun bike !!
    6/21/2014

    Customer review by YoungVeli

    5.0 stars 6/21/2014 by YoungVeli
    by YoungVeli

    Brakes are a little hard to get setup ( nice disk brakes ) , but it's a smooth ride, and great on beach / street terrain. I'm 38 and keep stealing it from my 9 year old / overall 10/10 for price, uniqueness, and functionality.

    Was this review helpful? (32) (7)
    Thank you! You have successfully submitted feedback for this review.
    Was this answer helpful?
    YoungVeli
    Would recommend to a friend? Yes
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    Brakes the scale in the "Cool" category
    6/8/2014

    Customer review by edzspace

    5.0 stars 6/8/2014 by edzspace
    by edzspace

    This was the center piece at my 10 year old's birthday party. You would have thought that a UFO had just landed in the living room when we revealed it in front of the boys and girls. A stout little bike that glistening with tough attitude. The Caterpillar Yellow rims and accents give it that industrial grade construction site ready feel and the tires look like they were just jacked off a Harley Fat Tail. Everything about this bike says "move over, Boss man is coming through!" Pros: Front and rear disk brakes are awesome once you get them lined up and adjusted (a little tricky for someone who hasn't done it before). Strong construction and heavy duty wheels great for Husky sized young boys. Very smooth and easy to shift gear set. This may be a con for older riders, the twist shiftier has a over sized grip that is great for the little pudgy fingers of the younger kids but hard not to accidentally shift gears (a lot) for larger hands. Cons: Everything about this bike is custom built around the wheel size. The frame, forks and the wheel hubs are non standard in size and may have parts availability issues in the future. Replacement tires are an immediate concern as a fat slick tire and disk brake equal lots of show off power slide to a stop activity in a ten year old. My son wanted a BMX bike, something tough not delicate that he can play rough with. I wanted him to have a geared mountain bike so he could keep up with the rest of the family when we ride. This seems like a good compromise.

    Was this review helpful? (35) (12)
    Thank you! You have successfully submitted feedback for this review.
    Was this answer helpful?
    edzspace
    Tucson AZ
    Would recommend to a friend? Yes
    Age:45 - 54
    Ownership:2 - 7 weeks
    Gender:Male
    Usage:Every day
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    Needs some adjustments, but good for the cost.
    3/16/2014

    Customer review by Peatbog

    4.0 stars 3/16/2014 by Peatbog
    by Peatbog

    I had the bike shipped to my local Walmart where I picked it up. The box was damaged but nothing inside was harmed in any way. Putting it together was easy: I had to put the handlebar assembly into the fork tube. All the cables were on the handlebars and the handlebar was in the stem. You need the proper size hex wrench (allen wrench) to tighten things once installed. I had to rotate the brake levers and shifter around a bit for proper fit. This requires a hex wrench of the proper size. The pedals need to be threaded onto the crank arms. You need the proper size open end wrench or an adjustable wrench to do this. The pedals are clearly labeled as to which goes on the right or left (because of left and right handed threads). The seat and seat post assembly needs slide into the frame, but because the seat post clamp is a quick release, you need no tools to do this. However, the seat pivot nut needs tightened very securely or it will not hold the seat at the angle you set it. Also, a seat frame rod that slides into the back of the plastic seat pan would come out if I picked the bike up by the seat, so I quit picking the bike up by the seat. The front wheel needs put on. The proper sized wrench or an adjustable wrench is required to tighten the axle nuts. At this point the bike was ride-able. However, a couple things needed adjusting. The front brake pads rubbed and made a noise, so I had to adjust the caliper which is easy to do. For more information, check this website on how I set up my bike: http://undergroundvelo.proboards.com/thread/3758/peatbogs-walmart-mongoose-adventurers-wonderland You may copy and paste that into your browser if you choose to. I give more information on things than I have space for here. Continuing on, the headset bearings and the bottom bracket bearings were too tight, so I adjusted them. The bike was functional without doing this, but it is better now. It pedals easier and the steering is smoother. Also, I had to adjust the derailleur cable so the the bike would shift through all the gears. This is not unusual with any bike that has to be assembled when you get it. I also needed to use the adjusting screws on the derailleur to keep the chain from falling off the small sprocket as the derailleur moved to far over. These adjustments are relatively easy if you are familiar with them. But if you are not, you may become pretty frustrated trying to get the shifting corrected. If you have problems, find a friendly bike shop (but you will probably have to pay them as they can't stay open working for free) or find a website like the one I listed above where you can ask questions and get the help you need. The seat post is not very long, so if whoever is riding the bike is over about 4'6" or so, you may need a longer seat post. The height I gave there is just a guess. It depends on how you like to have your seat adjusted. However, typical BMX seats are adjusted low, so if you set this up like a BMX bike, it will be fine. This is a cool bike and I am glad I bought it. If you do not know how to adjust the problems I pointed out, you may get aggravated with the bike. But all the parts seems of decent quality and I am very satisfied with the bike for the price I paid. The brakes work well and the gears shifted well once I adjusted things properly. The paint looks good and the bike looks good. The welds on the frame are decent. The decals look to be easily removable if you don't like them. The frame and fork are steel. The Walmart advertising is incorrect in suggesting otherwise. The rims appear to be aluminum, however. Also, there are no training wheels with the bike as suggested in the Walmart advertising. I wish they would have used black hand grips because the orangish-yellow ones will get dirty looking at some point. They do look good now though. Overall, this is a good bike for the money spent. There is nothing else like in a 20" size. If not for the adjustments I needed to make, I would have given the bike a 5-star rating. This bike gets peoples' attention. I hope Walmart makes it in "girl" colors in the future. I like brightly colored bikes for kids as it makes them more visible to those around them. The brightly colored wheels on the present bike are good for that. Presently, I am adding a banana seat and bar, and "apehanger" handlebars to my daughter's Massif. So this is a cool bike for customization also!

    Was this review helpful? (32) (15)
    Thank you! You have successfully submitted feedback for this review.
    Was this answer helpful?
    Peatbog
    Massillon, Ohio
    Would recommend to a friend? Yes
    Age:45 - 54
    Ownership:2 - 7 weeks
    Gender:Male
    Usage:Every few days
    The BEST Bike Ever!!!
    5/9/2014

    Customer review by TickManiac1

    5.0 stars 5/9/2014 by TickManiac1
    by TickManiac1

    Parents, Grandparents, relatives, etc., if you are thinking about getting your young ones something to have fun with this summer, this is it! I had it delivered to my local Wal-Mart and had it assembled there for free! One note, this bike supposed to come with a training wheels but I never got them when I picked it up the bike after it was put together. Also, the front brake is kinda put together tight because it made a little bit noise (metal rubbing together) but just need to loosen the screw a little.

    Was this review helpful? (29) (18)
    Thank you! You have successfully submitted feedback for this review.
    Was this answer helpful?
    TickManiac1
    Would recommend to a friend? Yes
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    coolest bike
    6/20/2014

    Customer review by yanxtt

    5.0 stars 6/20/2014 by yanxtt
    by yanxtt

    8 year old daughter's birthday. De-stickered it. Random compliments everywhere she rides. Easy to assemble and adjust. I went out and got the 'beast' for myself. My 11 year old daughter lowers the seat and rides it. Great cruisers.

    Was this review helpful? (8) (2)
    Thank you! You have successfully submitted feedback for this review.
    Was this answer helpful?
    yanxtt
    Would recommend to a friend? Yes
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    1-5 of 51 total reviews See all
    1-5 of 51 reviews

    Customer Q&A

    Back
    Questions & Answers 34 questions
    1-3 of 34 questions

    Ask a question

    If you would like to share feedback with us about pricing, delivery or other customer service issues, please contact customer service directly.


    Q&A tips and guidelines

    Q&A Exchange Guidelines

    When writing your question or answer, please follow these guidelines:

    • Do: Make sure your question is directly related to the product
    • Do: Be specific and provide as many details as possible
    • Do: Include the model number (if applicable)
    • Do: Write your question in English
    • Do Not: Include personal information (such as your full name)
    • All submitted questions and answers are subject to the terms set forth in our Terms and Conditions

    We reserve the right not to post your question or answer if it contains any of the following:

    • Any information not related to the actual merchandise or topic
    • Obscenities, discriminatory language or other language not suitable for a public forum
    • Advertisements or “spam” content
    • Email addresses, physical addresses or other forms of contact information
    • Critical or spiteful comments on other questions or answers posted on the page or their authors
    • Any imagery that demonstrates incorrect use of the merchandise
    • Anything that Walmart deems to be inappropriate, at Walmart's discretion

    Provide as many details as possible, including the model number (if applicable).

    Remember: Don’t include personal information (such as your full name).


    Preview Question

    Walmart does not sponsor, recommend or endorse any third party product or service, or any customer ideas or advice.

    Thank you.

    Questions will be checked against our question guidelines and posted within five to seven business days.

    1-3 of 34 questions See all
    1-3 of 34 questions

    Policies & Plans

    See any care plans, options and policies that may be associated with this product.

    Warranty Plan

    Walmart Product Care Plans
    A limited product warranty is included free for most items. With an optional Walmart Care Plan you can enhance the manufacturer's coverage from the date of purchase. Walmart Product Care Plans cover 100% of the cost for repair or replacement, including shipping charges for the exchange.

    We'll show you Care Plan options and pricing at checkout if applicable, or go to www.walmart.com/careplans for more information.

    Product warranty: Limited Lifetime Warranty See details

    Supplier Warranty: Limited Lifetime Warranty Visit schwinnbikes.com for details
    Did you buy this in a Walmart store?  Get a warranty for it here.

    Gifting plans

    Gift options are not available for this item.

    Pricing policy

    About our prices
    We’re committed to providing low prices every day, on everything. So if you find a current lower price from an online retailer on an identical, in-stock product, tell us and we’ll match it. See more details at Online Price Match.

    Product Recommendations

    Your recently viewed items

    Clear this list