Posts Tagged ‘#ultra4’

Ultra4 Class Differences, a Brief Overview

March 18th2015

Saturday Morning Traffic -- 2014 Discount Tire American Rocksports Challenge recently posted an overview of the different racing classes now in play this 2015 season. The sport has grown so much, I find review posts like this helpful to stay on course, and as such wanted to share it with you here. Original post can be found at , and as stated there, if you plan on building a rig for Ultra4 don’t rely on this summary post alone, read the official Rule Book. Read more…

CARtoon’d Erik Miller

January 24th2015


Michele Dallorso has been crafting his “CARtoons” for some time now. If you’re a frequent browser of the Book of Faces, you’ve probably seen his work show up in all art forms including posters, t-shirt designs, desktop background, etc. The folks over at DrivingLine caught on to his talent pretty quick, and for some time now has been featuring Michele’s work in a series called CARtoons. The latest installment features non other than Erik Miller, who has just loaded up the trailer for his over 2,400 mile ONE WAY trip to Johnson Valley, California (#koh2015 baby!).

We love these CARtoons, just one more element to add into all things that are great about Ultra4. Learn more about the background of this CARtoon at , and be sure to check out more of Michele’s work on DrivingLine at .

#koh2015 week starts in t-minus 8 days and counting.

Ultimate Unit Bearings w/ Trophy Truck Pattern

January 23rd2015

Spidertrax Ultimate Unit Bearing (6 on 6-1/2" x 5/8" Studs x 35 Spline)

When we set out to build the ultimate line of Ultimate Unit Bearings, offering a variety of wheel bolt patterns was on the top of that list. Continuing with that goal in mind, we are excited to add a 6 on 6-1/2″ bolt pattern option to the family. Complete with 5/8″ wheel studs, and available in both 35 & 40 splined options, this new Trophy Truck inspired Ultimate Unit Bearing could easily be one of the most popular we see in Ultra4 racing.

35 spline option available HERE.

40 spline option available HERE.

Happy Friday!