4-CYCLE SPRINT KART TIRES
Last updated on: 4-09-2013

• 4-Cycle Sprint Kart Specs:

• Cross Reference Chart

• Compound Applications

• Set-Up Information

• Direction of Rotations/Mounting Instructions

• Distribution

4-CYCLE SPRINT KART SPECS

CROSS REFERENCE CHART:   

COMPOUND APPLICATION:

The R45 is a soft, high traction compound designed for high performance applications. It will work well on medium to low grip track conditions. The R45 will provide consistent and repeatable results without compromising durability.  

The R60A is a medium-hard compound that balances traction, durability and performance with versatility. The R60A is designed for medium grip, high heat track conditions. The R60A will have less grip than the R45. 

SET-UP INFORMATION:

The recommended starting pressure for the R45 is between 10-13 psi cold. The recommended starting pressure for the R60A is between 12-14 psi cold. These pressures could be +/-1 psi depending on track condition.  

DIRECTION OF ROTATION/ MOUNTING INSTRUCTIONS:

Every Hoosier race tire has a four character serial code embossed into ONE sidewall of the tire (example: J7B9). The left side tires should be mounted with the serial side code facing toward the outside of the kart. The right side tires should be mounted with the serial code facing toward the centerline of the kart. Once the tire is on the rim, we recommend placing the tire inside a mounting ring and adjusting the ring to fit snug around the tire. We highly advise using the mounting ring as we believe not using it can over stretch the carcass leading to inconsistent sizing. Once the tire has seated onto the rim, it is important the tire be initially stretched to about 10 psi over cold starting pressure to get the tire to its proper "profile". The tire should be set at this pressure for a few minutes and then dropped to the desired race pressure. Just be consistent in this procedure to get repeatable results.

Tires with directional arrows should be mounted so that the tire travels in the direction of the arrow.

DISTRIBUTION:

Hoosier Tire East
56-H Loomis Street                         
Manchester, CT 06042                    
Phone: (860) 646-9646                    
Fax: (860) 646-2054                         
Email: hterace@aol.com
Contact: Rob Summers

Hoosier Tire Midwest 
3886 E. State Route 54 
Springfield, IL 62707 
Phone: (217) 522-1955 
Fax: (217) 522-6097 
E-mail: tim@racetires.com  
Contact: Tim Baker

Hoosier Tire Mid-Atlantic
Baltimore 
2931B Industrial Park Dr. 
Finksburg, MD 21048 
Phone: (410) 833-2061 
Fax: (410) 833-5921 
E-mail: sales@hoosiermidatlantic.com 
Contact: Bob Wirts 

Hoosier Tire Southwest 
103 Gross Rd, Bldg A
Mesquite, TX 75149
Phone: (972) 289-RACE (7223)
Fax: (972) 289-8055
E-mail: Tclonch@smileysracing.com 
Contact: Tim Clonch 

Hoosier Tire Canada-NY 
1733 Maryland Avenue 
Niagara Falls, New York 14305 
Phone (716) 285-7502 
Fax (800) 285-1454 
E-mail: brp@cogeco.net 
Contact: Peter Bicknell 

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 Do not duplicate or redistribute in any form.

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