Repsol Honda's Dani Pedrosa has stressed the importance of finding a strong set-up quickly should dry conditions prevail for FP3 and final qualifying for the San MotoGP on Saturday.

Friday's free practice sessions were hit by wet weather, with Pedrosa taking second place overall on the time sheets behind Ducati rider Andrea Dovizioso.

The morning and afternoon sessions saw a steady stream of fallers caught out by the conditions and a lack of grip from the Bridgestone medium compound tyres, although a switch to the softer rubber also failed to eradicate the problem.

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Pedrosa - whose best lap of 1m 50.356s was 1.161s behind Dovizioso but 0.163s faster than team-mate Marc Marquez - said: "Usually on Friday we make a lot of laps so this means we clean more the racing line and make more rubber, but this will affect Saturday when we are improving our lap times.

"It's important always to have more track time and tomorrow if it's dry then surely at the beginning the track will need more rubber. But anyway we have FP3 and qualifying so we need really to be quick with the set-up of the bike and the tyre choice."

Pedrosa felt the asphalt was the main cause of the grip issues as opposed to the traction offered by the medium and soft Bridgestone tyres.

"Grip was the problem [today] - there was no grip with the asphalt and there were many, many crashes for one day at mostly the same corners," he said.

"We started with the medium tyres and immediately everyone was crashing and then we had the option to change to the soft and be more safe, but there were still many crashes and I feel it is mainly coming from the asphalt.

"I asked why they [Bridgestone] chose the medium and their information from the past here was that they needed to use medium, but on the full wet the tyre has no grip and now they know."