Bradley Smith insists he won't dwell on the recently revealed chassis difference with Monster Yamaha Tech 3 team-mate Pol Espargaro.

Espargaro is contracted directly to Yamaha but has been beaten by Smith in five of the six races so far this season.

"I didn't know that there was a difference with chassis until someone asked in Mugello," Smith said. "I haven't talked to Herve [Poncharal] about it, I just speak to Guy [crew chief] and he explained the situation.

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"There's no guarantees that the other chassis is better. There's some things that I'd like to try that Pol can try but there's no guarantee it'll be better. I can't worry about it because it's not something I can change, but it's nice to still be beating the guy that has been given everything."

Smith is not only beating his team-mate but also currently the leading satellite rider in the world championship, exactly the kind of results he needs to help retain his seat for 2016.

"All the factory teams are sown up and there's not many options available. I'd love to stay where I am for a fourth year because I think that stability will be important for next year. It's going to be important to be in familiar surroundings and on a familiar bike [because of the tyre and ECU changes].

"Then next year all the contracts [for 2017] are up so the first six races are going to be key to putting yourself into a new home."

Smith admitted he has no way of knowing if there are other differences between his and Espargaro's M1s.