Skip to main content
contact
cart
MudThrowersAbout UsStore PoliciesProduct SearchTech HelpMudThrowers Contact Information
 
 
 Search
 
credit-cards-tire-store

STI R4 Mud Tire

STI R4 Tires
Price:
Starting at $147.80

28" & 30" for 14" wheels
33" & 35" for 20" wheels

 

Details:
Check out this massive mud weapon, R4, from STI! This bigger, bolder and more extreme mud tire is specifically designed and engineered for high performance machines. The R4 is an 8-ply rated, radial carcass that is nine inches wide. It's super deep lugs are angled to optimize traction performance both in forward and in reverse.
STI's R4 has a deep rim guard to protect your wheels while its rubber compound is built for abuse and durability. Other tires may look the same, but the STI R4 enters the mud with a strong carcass, deep lugs, and reduced weight.

 
Features:
  • 8 ply rated, radial
  • Large and strong rim guard
  • Super deep angled lugs (1.75 inches at center and 2.0 at shoulder)
  • Nine inches wide

 


STI R4 Tires

Tire Size
Part Number
Ply
 Weight
 Tread Depth
 Load Rating
 Price
28" (lbs) (in) (lbs)
 28-9R-14 209-1825 8 36.3 1.75 1002 $147.80
30"
 30-9R-14
 209-1827
8
38.5
1.75
 1134
$155.80
33"
 33-9R-20
 209-1850
8
40.7
1.75
1092
$168.80
35"
 35-9R-20
 209-1855
8
47.3
1.75
1236
$195.80


Tire Size:*
Quantity:
add to cart

OTHER ITEMS OF INTEREST:
STI R4 Mud Tire Wheel Package 20 Inch
Price:
$1,288.00

33" & 35" Tires
with 20" wheels!

Customer Reviews
5 star:
 
(0)
4 star:
 
(1)
3 star:
 
(0)
2 star:
 
(0)
1 star:
 
(0)
   Average Customer Review
  • Currently 3/5 Stars.
create your own review
STI R4 30x9x14
These tires are by far my favorite yet. I've had the assassinator tires before I choose these because the lug is thicker and shorter. The assassinators will tend to wander driving on hard surface. I bought these R4 tires to replace my Outback Max tires because the Outbacks pulled my can am down when I'm thick mud and didn't clean out the best. These don't ride rough but at 15 mph you will get a bit of vibration but I'll give up ride quality on hard ground if I can go through anything!
  • Currently 3/5 Stars.
Rating: 4/5
Posted by Jordan Pearson
09/17/2019 - 08:16 PM
View all  Create your own review
Site Mailing List  Sign Guest Book  View Guest Book 



 

 
262C Johnson Road
Manhattan, KS 66502

785-456-9025
M-F 9:00 am - 5:00 pm CST
Email: info@mudthrowers.com

Copyright 2019. Mud-Throwers is a registered trademark. All rights reserved. No portion of this website may be reproduced without written permission. All other trademarks, product names, and logos contained in this site are the property of their respective owners. Buy cheap ATV mud tires and atv tire wheel packages at www.mudthrowers.com. Our ATV tire store lineup includes System 3 tires and wheels, Kenda Bear Claw HTR, Pro Armor Crawler, ITP, Mega Mayhem, ITP Blackwater, STI Roctane, Maxxis Bighorn and Maxxis Carnivore tires.