Home made tires

[almarcoux]

Hi,
Does anyone have images of your homemade tires? I don't understand what you mean by 1/8 protrusion. I understand protrusion but... Over what? Above a full tread tire? Above the nut? Above the washer?

A Pryme tire has a protrusion of 3/16 ? Correct? Black Rockets protrude 3/16.

If someone can clarify please. Here's my email so we don't plug up this site with a bunch of unnecessary pics unless you want.

[e-mail]

Thank you in advance!

Al

[mark stewart]

Al, the home made studded tire must have the head of the stud stick out of the surface of the tread by no more than 3/16 of an inch after it is raced. A motorcycle stud referred to the MF1 developed by Marcel Fornier for motorcycle tires. Our rule was written with a 1/8 build height 3/16 run height after the race because the committee thought the home built tire rubber might erode with use.

[mark stewart]

Tire I built and ran last season. I used weld nuts on the inside which pulled the stud down into the rubber but shimmed with washers to get the correct height.