The Claiming Rule Team class was introduced in MotoGP for the 2012 season but was dropped with the introduction of standardised ECUs for the 2014 season. The intention was to bolster grid numbers (which had fallen to 17 entries by 2011) and increase the spectacle of the races.
The CRT bikes still had to be “prototypes” but in reality these Honda, BMW, Kawasaki and Aprilia privateer bikes were really just modified WSBK machines.
This is Aleix Espargarò’s Team Aspar Aprilia ART GP13 machine as it appeared in the final round of the 2013 season in Valencia. He placed 11th in the championship and first in the CRT class with six top-ten finishes.
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