Haas team principal Guenther Steiner has confirmed the team will revert back to Brembo brakes for the Spanish Grand Prix having hit trouble with Carbon Industrie in Russia.

After Romain Grosjean's continued brake woes carried over into 2017 having been hampered by issues throughout last season, Haas opted to try Carbon Industrie brake components in the Bahrain in-season test and at Sochi in the hope of curing the problems.

But Grosjean and Haas hit new trouble during the Russian GP race weekend having struggled with brake temperatures which has forced the US team to return to Brembo as it can't rely on Carbon Industrie to endure a race distance.

"We started off with Carbon Industrie [CI] brakes in Sochi. We weren't getting enough cooling for them, and if you don't cool them enough, you overheat the brake itself and the pedal gets long," Steiner said. "Also, the wear is very high.

"We looked into it to see if we could survive a race, but we realized we could not. Therefore, the decision was taken to go back onto the Brembo. As it stands now, we will race Brembo in Barcelona."

Steiner says Haas won't be pressured by time restraints to solve the cooling problem with the Carbon Industrie for the next race and will revert to Brembo until a solution can be found.

"To figure out how we can fix the problem will take a bit, but we will get there," he said. "It isn't an easy problem to solve. We will take our time.

"We know what we've got after our Bahrain test with CI brakes, and after Sochi in FP1 and FP2. We know what we need to do and what needs to get done, but it will take a little bit of time."

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