Race results for 2021 - Grattan Raceway Park 5/8
B Superbike Expert
Position
Sponsors
Sponsors
Bike #
Name
Bike / CC
Hometown
1)
#688
Yamaha 600
Clarkston, MI
Apex Manufacturing, Sky Dog Sanctuary, Detroit Management Services,
2)
#14
Yamaha 600
Brighton, MI
Pirelli, Vortex, NGK, Witchkraft, SBS,
