Jeff Vos leads a pack of riders in a WERA Formula 2 race at Blackhawk Farms Raceway in September of 1990. Vos was one of the only riders on a true GP bike and he dominated a field of mainly Yamaha FZR400s. Vos said he owned two of these Spondon-Rotax GP bikes. He got one from Danny Coe and the other from a racer up in Canada. Although he did well on the Spondon in the shorter races in  the club ranks (he won plenty of club races and scored second to Brad Sawyer at the WERA GNF on this bike later that year) in the longer races of the AMA 250 Grand Prix Series, Vos reports his Spondon-Rotax suffered a lot of reliability issues. He later switched to Aprilia and eventually a Honda 250GP bikes and scored much better results. He earned a slew of top-10 AMA 250 Grand Prix results from the mid-to-late 1990s, including a handful of top five results. He finished a career high fifth in the final AMA 250 Grand Prix standings in 1999. Today Vos runs a machine shop in Holland, Michigan.

Jeff Vos leads a pack of riders in a WERA Formula 2 race at Blackhawk Farms Raceway in September of 1990. Vos was one of the only riders on a true GP bike and the race and he dominated a field. (Larry Lawrence photo)