With the smallest of margins separating the top Pro riders in WPSA PowerSports ATV Tour, this weekend's Raceway Park National takes on added significance as the Tour makes its annual visit to New Jersey. The event, the penultimate round of the 2007 Tour, is scheduled for this Saturday and Sunday at Old Bridge Township Raceway Park.

This weekend's events will be telecast on ESPN2 on Sept. 14 at 5 p.m. EDT.

The racing weekend will feature the nation's top Pro riders, competing in three Classes: SuperQuad Pro 450, QuadTerrain Challenge Pro Stock, and SuperSport Side by Side. The SuperQuad Pro 450 Class features big air, motocross style racing.

QuadTerrain Challenge features larger, utility-type ATVs, competing on an obstacle course that includes log jams, mud bogs, rock crawls, as well as high-speed sections. The SuperSport Class comprises four-wheel utility vehicles piloted by a driver and co-driver, sitting side by side. The purpose-built racing machines compete on a modified course that includes both big-air sections, as well as obstacles.

The race weekend will also feature nearly 20 other classes for Pro Am, Amateur, Junior and Women's classes.

SuperQuad Pro 450

The big story this weekend will be the battle between Dustin Wimmer and John Natalie, Jr., both of whom are fighting for their first WPSA title. Natalie (No. 13 Elka, Maxxis/Honda) took a scant two-point lead in the last round, but Wimmer and his No. 191 MSR, Pro Taper, Yoshimura/Suzuki) has shown consistency this year, which may well pay off this weekend.

Meanwhile Wimmer's teammates Chad Wienen and defending titleholder Doug Gust sit third and fourth, respectively, ahead of Keith Little (No. 12 Lonestar/Honda)

However, the more significant story may just be the Manufacturers' Championship. With a victory here, Suzuki will clinch its second consecutive WPSA manufacturers' title.