SKU: 83069407409

System 3 RT320 RACE & TRAIL TIRES

Sale price$94.05 Regular price$104.50
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

System 3 RT320 RACE & TRAIL TIRESSystem 3 RT320 RACE & TRAIL TIRES Race and trail radial. Race ready, non directional, mixed terrain tread pulls hard on loose surfaces, yet rides smooth and quiet on hard pack. The System 3 Offroad XTR370 is a cross terrain radial tire with advanced sidewall construction that provides a smooth, comfortable ride. Super deep rim guard offers unmatched wheel protection and eliminates flats caused from pinching. 8 ply rated radial carcass is proven

System 3 RT320 RACE & TRAIL TIRES 

Race and trail radial. Race-ready, non-directional, mixed-terrain tread pulls hard on loose surfaces, yet rides smooth and quiet on hard pack.

The System 3 Offroad XTR370 is a cross-terrain radial tire with advanced sidewall construction that provides a smooth, comfortable ride. Super-deep rim guard offers unmatched wheel protection and eliminates flats caused from pinching.

8-ply-rated radial carcass is proven durable.
Advanced sidewall construction delivers sure-footed and comfortable ride.
Deep tread ranges from 0.75 to 1.0 in. on 28-32 in. tires, and 1.0 to 1.25 on 33 in. and larger tires.
Multi-angle tread blocks at shoulder for improved side bite. 
Super-deep rim guard protects your wheel investment. 

Free shipping with in the lower 48 states.

Specifications

Whether you race, run trails, or cruise the street, the RT320 Race & Trail Radial UTV tire from System 3 Off-road gives you better performance and strength. This race-ready non-directional UTV tire is ideal for mixed terrain at any speed. It pulls hard on loose surfaces while still giving a smooth and quiet ride on hardpack.

  • Lightweight, 8-ply radial carcass with wide contact patch
  • High-mileage rubber compound for max durability.
  • All size D.O.T. marked for traditional use only
  • Race-ready, non-directional mixed terrain design.
  • Pulls hard on loose surfaces, rides smooth and quiet on hard pack.
  • 28x10R-14  +  30x10R-14  +  32x10R-15 + 33x9.5R-15 + 35x9.5R-15

RT320 Race & Trail Specifications

SIZE  -  PLY RATING  -  DIAMETER  -  TREAD DEPTH  -  MAX PSI  -  MAX LOAD  -  WEIGHT  -  PART #

28 x 10R-14  -  8 ply rated  -  28.0 in.  -  0.65 in.  -  26 psi  -  740 lbs.  -  33.8 lbs.  -  521427

30 x 10R-14  -  8 ply rated  -  30.0 in.  -  0.65 in.  -  22 psi  -  1,000 lbs.  -  37.9 lbs.  -  521428

32 x 10R-15  -  8 ply rated  -  32.0 in.  -  0.65 in.  -  22 psi  -  1,000 lbs.  -  41.6 lbs.  -  521429

33 x 9.5R-15 - 8 ply rated - 33.0 in. - 0.65 in. - 22 psi - 1,020 lbs. - 39.8 lbs. - 521709

35 x 9.5R-15 - 8 ply rated - 35.0 in. - 0.65 in. - 22 psi - 1,020 lbs. - 43.0 lbs. - 521710

SIZE   PART # AVALABILITY
28 x 10R-14 S3-0135
In Stock
30 x 10R-14 S3-0150
In Stock
32 x 10R-15 S3-0165
In Stock
33 x 9.5R-15 S3-0166
In Stock
35 x 9.5R-15 S3-0168
In Stock

ecs 10-30-23

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 83069407409

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Kira Stewart
West Palm Beach, US
★★★★★ 5
My favorite socks
Size: Medium, Color: (659) Fuchsia Dusk / Fuchsia Dusk / Tourmaline Pink
Very comfortable. True to size. Moisture wicking
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Reviewed in the United States on April 25, 2026
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Theresa
New York, US
★★★★★ 4
No show but stays on
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I wear these socks daily. They truly don’t show with my workout shoes or with hey dudes. But the best thing about them is that they actually stay on your foot. I work out hard and I don’t ever have to pull them up. I do wish they were just a little bit thicker than they are, but they are definitely a product I will buy again.
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Reviewed in the United States on May 22, 2026
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LC
San Leandro, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
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Lucy Mejia
Lake Worth, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
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Twins9
Waukegan, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026

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