John Mayer’s 1990s Fender Strat Plusaccess_time First seen circa 2013
John used this guitar occasionally during the Born and Raised world tour, most notably at the Crossroads Guitar Festival in 2013.
From the looks of it, the guitar appears to be an early 90s Strat Plus. The most obvious giveaway is the three Gold Lace Sensor pickups (famously used by Eric Clapton, Jeff Beck, and Buddy Guy) and the Fender/Wilkinson needle-bearing roller nut – which was used on this specific model until around 1993. The exact color used on the guitar is probably what Fender calls Razzberry red – which is a really rare finish.
For more info about the history of this Fender model, please check out this wonderful and resourceful page by Xferi’s Guitars – The Fender Stratocaster “Strat” Plus Series