Bradl has joined the team for the remainder of the season alongside Alvaro Bautista to ride the factory Aprilia RS-GP after leaving Forward Racing by mutual consent in the wake of the team's decision to skip the MotoGP round at Indy after team owner Giovanni Cuzari was arrested in Switzerland over alleged tax evasion.
Bradl has taken over as a full-time replacement for Marco Melandri, who departed from the Gresini Racing-run outfit after eight races of the 2015 season following a run of poor performances.
"I can't wait to get to Indianapolis and start this new, great adventure. It obviously won't be easy at the beginning," said Bradl.
"I'll need to get used to a new team and a new bike, so my main goal in this first Grand Prix is to begin getting to know my mechanics and familiarising myself with the way the bike performs.
"As for my injured right wrist, the situation is good: I am very pleased because my hand is no longer giving me problems and lately I have been able to do the same training programme that I did before my injury," he added.
"During the summer break the healing process went well and on Monday the doctors gave me the all-clear to race at Indy.
"Recently I have also been motocross training to check my sensations on a bike. I still don't know how I'll feel astride a MotoGP bike, but I think that by the time I arrive at Indianapolis I'll already be close to 100 per-cent fitness."
Aprilia test rider Michael Laverty substituted for the departed Melandri in Germany prior to the summer break.
