SYSTEM 3 RT320 Race/Trail Radial Tire

Regular price
Regular price
Sale price

Vendor : System 3

Product Type : TIRES

Sku : 521427

Pay Over Time
Race-ready, non-directional mixed terrain design.
Pulls hard on loose surfaces, rides smooth and quiet on hard pack.
8-ply rated carcass is lightweight and features a wide contact patch.
High-mileage rubber compound for long life.


  • We will price match any advertised, in stock, shipped price on anything we sell
  • Price matched item must be in stock and must be for the same item(s)
  • Price match cannot be combined with any other promo codes or sales we may be running at the same time
  • If our competitor charges shipping, our price match will be the cost of the item plus shipping
  • Price match is not valid after an item has shipped
  • Email us a link to a competitor's site showing a better in stock shipped price for us to match by using our contact form
  • Price match does not include any applicable sales tax
  • We reserve the right to approve or deny price match requests 
  • To fill out a price match form CLICK HERE


FREE UPS Ground Shipping Promotion on Orders Over $99.00

• Free UPS ground shipping promotion is valid only on orders shipped to the lower 48 contiguous continental United States.
• Order total of $99.00 for Ground Shipping must be reached with product purchases only and will not include shipping, overweight charges or other miscellaneous fees. Free shipping order value is calculated on the total amount of your order excluding overweight packages. Over-sized packages and special shipping fees are not waived with this offer. Charges are subject to change. Confirm your shipping charge and method at time of order. 
• Offer does not apply to orders shipping to Hawaii, Alaska, Puerto Rico, Canada, APO/FPO, Postal Office Box or any international orders.

Exceptions to FREE Shipping Promotion

• Offer does not apply to orders shipping to Hawaii, Alaska, Puerto Rico, Canada,  APO/FPO, Postal Office Box or any international orders.
• Hazardous chemicals, aerosols and batteries must be sent ground due to shipping carrier regulations. Regular shipping charges will apply.
• Orders are held to ship complete

You may return most new, unopened items for a full refund within 30 days of delivery. These items should be in their original packaging and have their serial number or UPC. Special order returns are at our discretion on a case by case basis. If you would like to make a return or exchange, you must contact us by phone or email and submit an RMA (Return Merchandise Authorization) number before returning your items. This RMA number is usually written on the bill of lading (issued by the mail carrier's shipping department) or somewhere on the packaging. If you cannot find your RMA, one may be obtained by contacting us by phone or email. 

You will be responsible for any shipping costs when returning an item.

All returns will be subject to a 15% restocking fee. Remember, if you would like to return or exchange your item, you must contact us before sending it back. Items returned to us without notification will not be eligible for a refund or exchange.  

No returns on electrical items including audio

Returns will not be accepted on items that are:

  • Opened or used
  • Missing their serial number or UPC
  • Special orders (returned at our discretion)
  • Returned more then 30 days after delivery
  • Returned without notification

PlanetSXS is not affiliated with UTV Manufacturers in any way. References within this web site to Polaris, Yamaha, Can-Am, Honda, Arctic Cat, John Deere and UTV and/or Side by Side Manufacturers is for the convenience of the public, and does not constitute endorsement or recommendation by PlanetSXS.

PlanetSXS offers parts and accessories directly from the manufacturers and from our distributors. 

PlanetSXS is not responsible for any problems, issues or damages as a result from aftermarket accessories, parts, wheels, tires and other/all products purchased from and installed on your/other's vehicles. 

Customer Reviews

Based on 6 reviews
William Amend

The tires are very quiet on the road fits my new rims very nicely and I don't have to modify any of the front end for clearance this is for a 21 pro Razor

Ryan Sohn
System 3 RT 320’s

Ordered RT 320’s in 33x9.5. Love the tires and the shipping was super fast, I would highly recommend!!!

David Crowell
Quick and cheap

Ordered one tire and it came in just a couple days! Much cheaper here than through my local shops or the tire maker.

Casey W.
System 3

Ordered a wheel and tire setup to use as a spare. Came pre-mounted, which was great, however a handful of beadlock bolts were not tight. 2 not even threaded in all the way. I tightened and retorqued all the bolts. Tire and wheel are great otherwise. Couldn’t beat the price and shipping.


Called and was told they didnt think these were DOT stamped. I did some further investigation, and found that they are indeed DOT stamped. Ordered them up, and all 4 are stamped. 35"s