Listen to this article Gerloff set the fifth-quickest time in the two-day test at the Spanish circuit, trailing only reigning champion Toprak Razgatlioglu among the Yamaha contingent as the Japanese manufacturer trialed an upgraded version of the title-winning R1. The 26-year-old racked up nearly 150 laps across the two days of testing, even completing some crucial wet running ahead of his third season in the production-based category. Gerloff was buoyed by his performance in Barcelona, applauding Yamaha for fine-tuning a bike that was already working to his liking at a previous private test in Misano. “It was really good,” said Gerloff after the opening day of testing. “I was really happy with all the changes made at Misano, and I can’t believe it, but they actually worked here too so that’s super positive! “When we first started, I was a …