As reported by Gazzetta dello Sport, Hamilton was riding a Yamaha YZF-R1, the same bike used in the World Superbike championship by the works-backed Crescent team this year.
The Mercedes F1 driver worked with Crescent during the test, which was organised by British track day firm No Limits, riding a completely black bike with stickers bearing his racing number 44.
His day was hampered by a small crash, but he escaped the incident without any injuries, and was able to continue riding afterwards.
Hamilton, a well-known fan of MotoGP, became an ambassador of famous motorcycling brand MV Agusta last year, and even put his name to a limited edition bike developed by the Italian firm, the F4 LH 44.
The five-time F1 champion also shared a track with LCR Honda’s Cal Crutchlow, a fellow Monster-sponsored rider, earlier this year when the pair spent a day riding Superbikes at the Californian Chuckwalla Valley track.
Lewis Hamilton is testing the Yamaha Superbike