The fastest machine on radar during team tests at Road Atlanta Wednesday was a Formula Xtreme GSX-R1000 ridden by Grant Lopez.

Riding his Valvoline EMGO Suzuki GSX-R1000, Lopez registered 171 mph on a radar gun operated by Yoshimura Suzuki’s Don Sakakura. The fastest Superbike on Sakakura’s radar was a Yoshimura Suzuki GSX-R750 ridden by Aaron Yates, at 166 mph.

Lopez’s best lap time was a 1:25.5, faster than the Formula Xtreme lap record at Road Atlanta, and about in the middle of lap times turned by Superbike riders at Road Atlanta Wednesday.