I can see why cooldad made that recommendation, fully understand it in fact. But now is the time you need more protection. You are about to start riding off-road, so instead of nice smooth and flat tarmac, you will be faced with rocks, ruts, mud, overhanging trees, and roots - don't forget the roots! Also very steep inclines, off camber slopes, loose terrain, and so on. You will have suspension that needs to be set up to assist you instead of generating problems for you.