The Lone Star State has had a big influence in the professional endurance series almost from day one. Dallas rider Troy Green was last year’s Rider’s Champion in the Buell Motorcycle Company SuperSport Twins (SST) class, and he and teammate Ty Howard of Weatherford, Texas helped the Aprilia USA squad claim the Team’s title as well. Now the Texas connection has spread to the Sport Twins (ST) division, where the M4 Avteq Racing squad is in the thick of the title battle heading into this weekend’s Barber 500k at Barber Motorsports Park in Birmingham, Alabama, the fourth round of the seven-race series.