Bradley Smith will treat the Catalunya Grand Prix as a home race when the FIM 125cc World Championship points leader races at the Montmelo circuit on Sunday.
Smith began his full-time grand prix career with the Repsol Honda team which is based close to Barcelona.
The Bancaja Aspar Aprilia team rider leads the championship standings by 3.5 points over team-mate Julian Simon and hopes to put his knowledge of the circuit to good use.
Smith said: "I'm really looking forward to the weekend because Barcelona has great sentimental value for me. I had my very first ride on a grand prix bike there and the Repsol Honda team were based there.
"I got to know the city and spent a great deal of time training and riding in the area. It will be a tough battle and I aim to just finish each race as high as I can at this stage of the season."