What track conditions are best for the Maxxis HT3?

The HT3 is a slick tire, used for dry weather conditions, only.

What do the measurements mean?

Kart tires are sized by numbers, such as 12x9.00x6; the 12 indicates the diameter, 9.00 is the tire width, and the 6 indicates rim diameter. These measurements are in inches.

How are your tires made?

Kart racing tires are made without an inner liner.  The carcass forms the sidewall. The tread, made of a special compound, is much thinner than an ordinary tire.

All HT3 tires compounds are made of a synthetic rubber designed to provide maximum performance over a variety of temperature and grip levels.  The HT3 9.00 is a thin tire with .65th rubber thickness.  The HT3 6.00 and HT3 4.50 is .40th rubber thickness.

Oval Dirt Kart Racing requires the following tire set up:
HT3 12x9.00x6 – Right front tire and right rear tire, mounted on 10” wheels.
HT3 11x6.00x6 – Left rear tire, mounted on an 8.25” or 8.5” wheel.
HT3 10.5x4.50x6 – Left front tire, mounted on a 6.5” wheel.

The figure below explains the parts of a kart tire and the function.

Tread: This is the part of the tire that makes contact with the surface, also known as the contact patch.  The contact patch is where the grip is determined. The tread is composed of a thin layer of rubber. A number of different compounds are used to meet various needs ranging from a good grip to superior resistance to wear.

Carcass: The carcass is the name for the main elements of the tire, including the section inside the tread, the sidewall and bead section. The carcass’s function is to maintain the shape of the tire and it must be strong enough to hold the air pressure of the tire and withstand external shocks. This carcass is composed of two layers of rubber coated nylon cord.

Bead: The bead forms the base of the carcass and is composed of a bundle of steel wires enclosed in the carcass. The bead sustains the air pressure and fits the rim to form an air seal.

How much air pressure is safe in a Maxxis tire?

The manufacturer approved inflation for the HT3 is 8 -12 psi.

Any advice on safety precautions?

Failure to follow these safety precautions could result in accident and/or serious injury:

  • Only trained persons using proper equipment and procedures should mount tires.  We recommend using a tire ring or a tire band when mounting tires.
  • Always lubricate the tire beads and rim flange with an approved tire lubricant or a soap/water based lube such as Windex when fitting the tire onto the rim.
  • Always check for proper seating on rim before inflating and make sure that both sides are mounted and the valve core is out
  • Never stand, lean on, or reach over the tire assembly while inflating.
  • Never stand at either side of the tire while inflating; the rim may be propelled to the side if there is an explosive separation.
  • Always completely deflate to demount a tire. Re-lubricate the beads to re-inflate.
  • ALWAYS check tire for proper seating and air leaks after inflation. Use soapy water when checking for air leaks, especially around valve.
  • ALWAYS check tire for cuts, cracks, foreign objects and other abnormalities.

Goldspeed USA reminds dealers to control their inventory by using the first-in, first-out method and to utilize proper storage methods in their facility.  It is recommended to store tires in a controlled temperature environment.

Goldspeed USA constantly monitors its inventory levels, and has a process to ensure the proper first in, and first-out distribution methods are used.

Are there any limitations on your guarantee?

Goldspeed USA does not guarantee or replace tires that have been cut using a machine.

Goldspeed USA does not guarantee or replace tires that have been treated with chemicals on the inside or outside of the tire.

How do you read the dates codes on a Maxxis tire?

042861530 or 142861530
0 = material number HT3 or 1 = material number of EL
4 = year 2014
6 = day of the week (Saturday)
28 = 28th week of 2014
1530 = employee number