Hello bros. I picked up this '''''mountain bike'''"'' recently and I've been taking it out on some single track trails, having a lot of fun. It's an old Specialized Rockhopper. I've been riding dirtbikes for a while so I have a basic idea of technique because it seems it's quite similar, but do you experienced guys have any tips for getting good at mountain biking while riding an old rigid? Also what gear is essential? Right now I'm wearing tennis shoes, shorts and a dirtbike jersey and I don't know what else I really need.

Thanks bros.