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MASSFX 21x7-10 Front (2) & 20x10-9 Rear (2) Tire Set for Sport Quad All-Terrain (ATV), Utility-Task (UTV), and Side-by-Side (SxS) Vehicles - 4-Ply with 15mm Tread Depth 21x7x10; 20x10x9 (4-Pack)

  • Based on 669 reviews
Condition: New
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$189.96 Why this price?

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Availability: In Stock.
Fulfilled by MASS Depot

Arrives Jul 23 – Jul 27
Order within 22 hours and 48 minutes
Available payment plans shown during checkout

Features

  • Premium MK Series Tires: The MASSFX 21x7-10 Front Tire and 20x10-9 Rear Tire are part of the renowned MK Series, designed for superior durability, performance, and versatility across diverse terrains.
  • All-Terrain Performance: Engineered to excel on trails, dunes, mud, rocky terrain, and more, these tires ensure exceptional traction and stability for off-road adventures.
  • Versatile Fit: Suitable for sport quads, ATVs, UTVs, and SxS vehicles, these tires are designed to meet the needs of both recreational riders and utility users.
  • Reliable Control and Handling: The balanced design of the front and rear tires ensures improved cornering, responsive steering, and enhanced handling for a safer and smoother ride.
  • Built for Adventure: Whether tackling rugged trails, climbing steep dunes, or maneuvering through rocky paths, these tires provide the durability and control needed to take your off-road experiences to the next level.

Brand: MASSFX


Seasons: Year Round


Size: 21x7-10, 20x10-9


Section Width: 7 Inches


Tread Depth: 0.5 Inches


Tread Type: Asymmetrical


Maximum Pressure: 5 Pound per Square Inch


Ply Rating: 4


Rim Width: 7 Inches


Tire Diameter: 21 Inches


Brand: ‎MASSFX


Seasons: ‎Year Round


Size: ‎21x7-10, 20x10-9


Section Width: ‎7 Inches


Tread Depth: ‎0.5 Inches


Tread Type: ‎Asymmetrical


Maximum Pressure: ‎5 Pound per Square Inch


Ply Rating: ‎4


Rim Width: ‎7 Inches


Tire Diameter: ‎21 Inches


Item Diameter: ‎1E+1 Inches


Item Weight: ‎62.6 Pounds


UPC: ‎862489000380


Vehicle Tire ISO Metric Size Description: ‎177.8/533.4-254 (F), 228.6/508-254 (R)


Construction Type: ‎Bias


Manufacturer: ‎Mass Depot


Model: ‎MASSFX


Item Weight: ‎62.6 pounds


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎2x MO20109 2x MO21710


Date First Available: September 16, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 23 – Jul 27

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Best value for the money.
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. ... show more
Reviewed in the United States on September 18, 2021 by Sam chacon

  • Amazing deal is understatement for what you get.
So so very impressed! I was in sticky spot needed new tires for a day of riding, these were basically only ones guaranteed del before when i needed them. 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 of sticks and trails they look perfect and preformed amazing the tread is freakin deep on them. Im very impressed very very highly recommended! ... show more
Reviewed in the United States on October 20, 2018 by Amazon Customer Amazon Customer

  • Best bang for your buck
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 . ... show more
Reviewed in the United States on October 31, 2018 by Cm01770 Cm01770

  • They wrapped rope around each of them tightly bound them to package & ship them which deformed them
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. ... show more
Reviewed in the United States on April 2, 2024 by MishellnBaker

  • I should be able to get another sent to me???
Rode great for two weeks! Then my back tire had a hole in it already...??? Way too soon for this to happen on a brand new tire! I'm furiated! I was so excited to try these out. Now I'm just disappointed, and can't ride.
Reviewed in the United States on May 4, 2020 by Patricia

  • Will update after I get them on and see how they ride
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 April 8, 2021 by jake

  • TERRIBLE! Don't purchase them!
The tires arrived smashed up horrible. They was packaged WAY too tight, Once they was unwrapped they stayed deformed and he had a terrible time trying to get them on the rims to the point they broke their tire machine trying. I wanted to do a return but I could never find a box to fit these in and they didn't come in a box they came with a piece of carboard on them and wrapped tight with wires so there is no way of shipping them back in the original box and I could never find something to ship them back in so now I am out all of myt money for tired I can;t even use. I was able to use 1 tires out of the 4. TERRIBLE do not purchase these. Not to mention the tire machine that was broke was super expensive ... show more
Reviewed in the United States on May 14, 2024 by Samantha

  • incredable traction, hold on.
Put these on my Yamaha Raptor . installed with my Harbor Freight manual tire machine. Getting the old tires off was a pain but after I figured out to use the high lift jack and the truck bumper to break the bead i did fine.
Reviewed in the United States on December 6, 2019 by DGray

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