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MASSFX Sport ATV Tire Set - Two Front 21x7-10 & Two Rear 20x10-9 - 4 Ply Rating - 1/2” Tread Depth - 21x7x10 & 20x10x9 (Four Pack)

4.5 4.5 out of 5 stars 658 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in ATV Mud Tires by MASSFX

$173.96

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Purchase options and add-ons

Brand MASSFX
Seasons Year Round
Size 21x7-10, 20x10-9
Section Width 7 Inches
Ply Rating 4-Ply
Tire Diameter 21 Inches
Item dimensions L x W x H 26 x 20 x 20 inches
Item Weight 62.6 Pounds
Rim Size
10 Inches
Load Index
91.0
Speed Rating
H
Tread Depth
0.5 Inches

About this item

  • Dynamic Tread Pattern: The MASSFX MO tire features a dynamic tread pattern that's designed for sport quads, providing exceptional acceleration and traction on all surfaces, as well as the ability to grip terrain in any direction.
  • Perfect for Sport Quads: These tires are ideal for hard turns and fast straightaways that sport quads are built for, offering a comfortable ride without sacrificing durability.
  • 4-Ply Construction: Constructed from high-quality materials, these tires feature 4-ply construction that offers exceptional durability, allowing you to ride hard without worrying about punctures or other damage.
  • Max Load Capacity: With a max load of 205/260 lbs at 5 psi (Front/Rear respectively), these tires are sturdy enough to handle the demands of off-road use, providing peace of mind and confidence on every ride.
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Product Description

MO SERIES

Tread

Ply

f

Dynamic Directional Tread

The structured tread pattern found on a MassFX MO Series Sport ATV tire is built to keep you safe and secure while you ride through the toughest road conditions.

4 - PLY BIAS Rating

With a 4 - Ply Bias rating you get the best of both worlds. Composed of 4 separate layers of reinforced, high-grade rubber, the MASSFX MO Series Tires provide traction like never before, all while being chip and tear resistant.

Sidewall Traction

Built with Sidewall Traction technology adds strength and extra traction to the shoulder and sidewall areas of the tire.

TREAD
MICRO TREAD
MO

AVAILABLE SIZES

Tire Height-Tire Width-Rim Size
  • 21 x 7 - 10
  • 20 x 10 - 9
  • 20 x 11 - 9
  • 22 x 7 - 10
  • 22 x 10 - 10
BOLD UNIQUE TREAD

The unique pattern offers large ground coverage which gives you more support as you ride. Keeping you in control, the MASSFX MO Series tires will give you the ride of your life.

MASSFX-MO SERIES

The toughest tire around.

The bold, thick tread pattern of a MASSFX MO Series tire is both interesting to look at and practical for any road condition. The large tread grips the surface to give you a smooth, safe, and comfortable ride.

WHAT DOES 4 - PLY BIAS RATING MEAN?

4 - represents the overall strength rating of the tire based upon the composition of the tire

PLY - is used to represent the relative strength of the tire overall.

BIAS - refers to the tires classification.

HOW TO READ A TIRE EXAMPLE PART 1
part 2

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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MASSFX Sport ATV Tire Set - Two Front 21x7-10 & Two Rear 20x10-9 - 4 Ply Rating - 1/2” Tread Depth - 21x7x10 & 20x10x9 (Four Pack)

MASSFX Sport ATV Tire Set - Two Front 21x7-10 & Two Rear 20x10-9 - 4 Ply Rating - 1/2” Tread Depth - 21x7x10 & 20x10x9 (Four Pack)


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MASSFX Sport ATV Tire Set - Two Front 21x7-10 & Two Rear 20x10-9 - 4 Ply Rating - 1/2” Tread Depth - 21x7x10 & 20x10x9 (Four Pack)
MASSFX Sport ATV Tire Set - Two Front 21x7-10 & Two Rear 20x10-9 - 4 Ply Rating - 1/2” Tread Depth - 21x7x10 & 20x10x9 (Four Pack)
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Price$173.96$199.99$119.96$249.99$269.99$193.96
Delivery
Get it May 17 - 21
Get it May 17 - 21
Customer Ratings
Value for money
4.4
4.5
4.6
4.6
Durability
4.2
4.5
4.6
4.5
Sold By
MASS Depot
MASS Depot
MASS Depot
OBOR TIRE STORE
OBOR TIRE STORE
MASS Depot
size
21x7-10, 20x10-9
21x7-10, 20x12-9
20x11-9
25x8-12 & 25x10-12
21x7-10 & 20x11-9
20x11-9
seasons
Year Round
Year Round
Year Round
Year Round
Year Round
Year Round
number of items
4
4
4
tire diameter
21
21
20
21
section width
7
7
11
8
7
7
rim size
10 inches
10 inches
9 inches
12 inches
10 inches
10 inches
load capacity
235 pounds
340 pounds
290 pounds
load index
91
235
260
43
340
260
speed rating
H
M
J
F
F
J

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
658 global ratings

Customers say

Customers like the quality, value, traction, appearance and fit of the vehicle tire. They mention that it's an excellent tire, it looks awesome and that it fits perfectly.

AI-generated from the text of customer reviews

38 customers mention32 positive6 negative

Customers like the quality of the tires. They mention that they are excellent, nice, and solid little tires. Some say that the tires hold up great and have good tread.

"Tires seem to be of very good quality. Installed these on my son's quad and they have amazing grip...." Read more

"They are very nice good quality tires with decent treads...." Read more

"...Great tires already went Mudding and Thru the Dunes and nothing better then a great Grip while riding...." Read more

"Pretty nice tires. Seem to be of the same value as other lead brands. Would definitely buy in the future" Read more

35 customers mention35 positive0 negative

Customers are satisfied with the value of the vehicle tire. They mention that it is the best value for the money, strong, and performs well for the price.

"Great traction. Low price, but better than expensive name brand tires." Read more

"These tires look awesome !! Lots of tread for the track . Price was great cant complain . Defintely recommend !..." Read more

"...update when I do but only took 4 days to get to me in ohio and the price is great and they look like a great tire." Read more

"Great price but then they send them so squashed that they do NOT seal to wheel!!..." Read more

13 customers mention13 positive0 negative

Customers like the traction of the vehicle tire. They mention that it has a great grip while riding and helps the quad take off.

"Great traction. Low price, but better than expensive name brand tires." Read more

"...Installed these on my son's quad and they have amazing grip...." Read more

"...UPDATE : Had these put on and took them for a spin , these things really grab and helps the quad take off your ripping through the trails ...." Read more

"...went Mudding and Thru the Dunes and nothing better then a great Grip while riding. I’ll definitely be buying another set once needed." Read more

12 customers mention12 positive0 negative

Customers are satisfied with the appearance of the vehicle tire. They mention that it looks awesome, has a low profile, and is exactly what they were looking for. Some customers have used the tires for a year and they still look brand new.

"These tires look awesome !! Lots of tread for the track . Price was great cant complain . Defintely recommend !..." Read more

"...4 days to get to me in ohio and the price is great and they look like a great tire." Read more

"...Anyways got them and put on they look great and oh my after 90 miles of very very hard riding and many wheelies, donuts on gravel roads, and miles..." Read more

"Had these tires for a year already and still look brand new, my fully built 2007 raptor 700r loves them" Read more

7 customers mention7 positive0 negative

Customers like the fit of the vehicle tire. They mention that it fits perfectly and hasn't had a puncture yet. However, some customers say that the tires run small.

"Ride well. Great traction. Haven’t had a puncture yet. They run small. Same spec size 20x10-9 but quite a bit smaller...." Read more

"Work and fit great. Seem to hold up fairly well from what I can see." Read more

"This fit great on our Yamaha they have held up great. Awesome traction on mud and snow." Read more

"These tires fit well and have good tread, not sure on durability yet. Good value though." Read more

Nice tires. Run small!
4 Stars
Nice tires. Run small!
Ride well. Great traction. Haven’t had a puncture yet. They run small. Same spec size 20x10-9 but quite a bit smaller. Both tires are mounted and at 5psi in pic. The old ones ran a little big but it’s pretty substantial. Would buy again, just larger size to compensate
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Top reviews from the United States

Reviewed in the United States on November 12, 2022
Great traction. Low price, but better than expensive name brand tires.
Reviewed in the United States on September 18, 2021
This is the second order I have made for these tires. No issues with my first order. Tires on my sons raptor went through mud like nothing while I struggled on a Polaris 4x4 scrambler with different tires. The second set only came with 2 back tires and the box was tore up and crushed. I immediately sent photos to the seller and submitted a claim. They put in another order for my front tires. Hassle free and they made it painless. Will purchase again in the future.
2 people found this helpful
Report
Reviewed in the United States on April 12, 2019
Tires seem to be of very good quality. Installed these on my son's quad and they have amazing grip. I have $600 worth of ITP mudlites on mine and he was going thru the mud easier than I was. Think of them as ITP holeshots for a faction of the cost.
Customer image
5.0 out of 5 stars Great tires! Amazing price.
Reviewed in the United States on April 12, 2019
Tires seem to be of very good quality. Installed these on my son's quad and they have amazing grip. I have $600 worth of ITP mudlites on mine and he was going thru the mud easier than I was. Think of them as ITP holeshots for a faction of the cost.
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Customer image
Customer image
5 people found this helpful
Report
Reviewed in the United States on April 2, 2024
They are very nice good quality tires with decent treads. But to ship them they had tightly wrapped and bounded them with rope around each tire which deformed them causing them each to become formed triangular shaped instead of round AA a tire should be. Which for sure is a big problem! Especially since they were shaped like triangles which resulted in it taking a lot of rough physical work, strength,and alot of time and effort to do yourself by hand to man handle each individual tire to work to soften the rubber to reshape them together them somewhat round again. Which isnt easy to do at all! Them being triangular shaped for sure makes it a lot of physical hard work and a really difficult process which makes it damn nearly IMPOSSIBLE for your average person to put tired on the rims or seat the tires bead by hand.
Reviewed in the United States on October 31, 2018
These tires look awesome !! Lots of tread for the track . Price was great cant complain . Defintely recommend !

UPDATE : Had these put on and took them for a spin , these things really grab and helps the quad take off your ripping through the trails . I WILL BE BUYING AGAIN !! THE BEST BANG FOR YOUR BUCK .
Customer image
5.0 out of 5 stars Best bang for your buck
Reviewed in the United States on October 31, 2018
These tires look awesome !! Lots of tread for the track . Price was great cant complain . Defintely recommend !

UPDATE : Had these put on and took them for a spin , these things really grab and helps the quad take off your ripping through the trails . I WILL BE BUYING AGAIN !! THE BEST BANG FOR YOUR BUCK .
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5 people found this helpful
Report
Reviewed in the United States on April 8, 2021
Haven't got them on yet will update when I do but only took 4 days to get to me in ohio and the price is great and they look like a great tire.
Reviewed in the United States on January 7, 2019
Couldn’t be any happier with this purchase! Tires were set to come in on either the 7-9th of January and came in on the 5th. Great tires already went Mudding and Thru the Dunes and nothing better then a great Grip while riding. I’ll definitely be buying another set once needed.
Customer image
5.0 out of 5 stars Perfect For the Price and Quality!!
Reviewed in the United States on January 7, 2019
Couldn’t be any happier with this purchase! Tires were set to come in on either the 7-9th of January and came in on the 5th. Great tires already went Mudding and Thru the Dunes and nothing better then a great Grip while riding. I’ll definitely be buying another set once needed.
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3 people found this helpful
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Reviewed in the United States on March 22, 2024
Cant beat that price and they pull good in the woods mud and rocks. Definitely recommend only probably was the way they was shipped they looked like triangles and was not easy to put on because of it hope they fix there shipping method and would buy again