Pressure plates for CD70

[hrgpk]

I have 2004 honda CD70 bike. It has done 78,000 kms on odometer. The bike is still running on stock engine. On my last trip to mechanic, he said that my bike needed replacement of pressure plates and that new pressure plates will give it better acceleration.

I have never seen or heard about pressure plates. Can some worthy member guide me on the issue ?

[k-four-nine]

He might be talking about the flywheel, although I'm not entirely familiar with 'localized' technical terms.