Anaheim, Calif.  – GBC Motorsports has announced that it will be releasing two new models of cross-country tires. The XC-Master and XC-Racer will be replacing the X-Rex and Race Rex models, and will be available in February 2013.

GBC Motorsports strives to offer ATV riders and racers the best tires possible, and continually works to update their products based on research and feedback from professional racers. The result of this work is a pair of modified and improved cross-country tires based on the popular X-Rex and Race Rex models.

Anaheim, Calif. – GBC Motorsports is excited to team up with Yamaha for the 3rd Annual SXS & ATV Roundup at Brimstone Recreation in Huntsville, TN. Come celebrate Labor Day Weekend in style as riders from around the country will descend on Huntsville Friday, September 2nd through Sunday, September 4th.

Last year the SXS & ATV Roundup brought in the largest crowd on record to Brimstone Recreation and this year’s schedule of events promises to do the same. Join local trail masters on guided rides of varying skill levels all weekend long. GBC Motorsports will have all of their SXS and ATV tires on display, so make sure to stop by the GBC camp to check out the latest GBC Motorsports has to offer. Yamaha and Can-Am will also be in the vendors’ area, providing demo rides on their latest and greatest machines.

The fun kicks off on Friday with guided trail rides and open riding all day long. Friday night features the Pro Armor Show and Shine as well as the Brimstone Rider Fellowship Meet & Greet. Guests will end the evening with a drive-in movie in the town square, presented by Tamarack.

Saturday offers more riding and more exciting events. The Super ATV series will consist of a sled pull, pole bending, and an obstacle course, with points going towards the championship. GBC Motorsports is also hosting a Mud Bog challenge as well as a Ladies Dash for CASH event. Following the Mud Bog will be a short raffle and awards ceremony. The night’s festivities are just beginning as country music star Tracy Lawrence will perform hits like “Time Marches On” and “Sticks and Stones” in a live concert presented by Can-Am. For a full schedule of events visit

With the weekend winding down, Sunday brings more racing action with the King of the Mountain (KOTM) Challenge. This endurance race features a custom built course with some of the toughest terrain imaginable. Competitors will have to wrestle their machines through a number of obstacles to conquer the mountain. A $2,000 grand prize will be awarded to the top finisher. ATVs will take to the course in the morning in a 2-hour challenge, while SXS drivers will attempt to tackle the course in a 3-hour afternoon challenge. The evening and weekend comes to a close with the Moonshine Run after dusk. For more info on the KOTM, visit

STI Tire & Wheel is pleased to announce the launch of its all-new website: The new site is loaded with information and images regarding all things STI. Visitors will find in-depth news on products like Black Diamond and Tech 4 tires, HD Alloy and Sport Alloy wheels, and pre-mounted tire/wheel kits for utility and 4×4 ATVs, side-by-side UTVs and sport quads. We have press reviews and testimonials from product owners, photo and video galleries, a tech info page and event reports. Our media center will provide the industry with numerous photo, logo and press release file downloads. It’s everything anyone needs to know about STI, all in one convenient location. We hope you will stop by today!


STI Tire & Wheel has now released its new tire the Black Diamond. This super-versatile new ATV/UTV tire is designed to deliver crossover performance—an ideal choice for all terrain types and all seasons—at a value price.

The Black Diamond’s innovative “V” tread pattern bridges the gap between soft mud/snow/sand and hardpack surface capabilities. Its unique over-center tread elements provide a smooth, controlled ride on hardpack, while offering excellent traction and clean-out in soft conditions. The Black Diamond’s 6-ply radial carcass was developed specifically to provide the stability needed for side-by-side UTV applications, while retaining the plush ride characteristics favored by ATV riders. An extended-wear tread compound retains biting edges longer and greatly increases tire life.

The Black Diamond is now available in two models and more than 30 sizes. The Black Diamond ATR features a ¾-inch tread lug, while the Black Diamond XTR utilizes a more aggressive 1 1/8-inch lug depth.

The ATR model’s sizes are: 22x11R-9, 25x12R-9, 22x11R-10, 22x8R-10, 23x10R-10, 23x8R-10, 24x11R-10, 25x11R-10, 23x8R-11, 24x10R-11, 24x8R-11, 24x9R-11, 25x10R-11, 25x8R-11, 23x10R-12, 23x8R-12, 24x8R-12, 25x8R-12, and 25x10R-12.

The XTR model’s sizes are 25x8R-12, 25x10R-12, 26x10R-12, 26x12R-12, 27x9R-12, 27x11R-12, 26x9R-14, 26x11R-14, 27x9R-14, 27x11R-14, 26x9R-15 and 26x11R-15 (26x9R-12 and 26x11R-12 sizes are coming soon).

STI Black Diamond tires are available at finer ATV/UTV dealers everywhere, through MTA Distributing. For more information, to place an order or to locate an STI dealer, visit or call: East (318) 255-0049; West (951) 272-0971.

According to ATV tire manufacturer ITP, something wicked this way comes, and it’s called Mayhem. The Mayhem is the new bad boy in ITP’s proven ATV/UTV tire line, spelling trouble for the competition. This is ITP’s most aggressive mud/trail tire ever, with striking looks and hard-hitting performance.

The Mayhem features a unique, deep-lug tread design that mocks the nastiest mudholes but still plays nice on harder trail surfaces. Trail comfort and handling are further enhanced by the Mayhem’s lightweight carcass construction. Exceptional acceleration and braking characteristics as well as balanced cornering qualities make the Mayhem a capable, confident all-around performer. With its extended wear rubber compound and durable 6-ply rating, the Mayhem can take a beating and come back for more. And with its distinctive, tribal-inspired, embossed artwork, the Mayhem stands out in a crowd not just for its abilities but for its attitude, too.