Just picked up my first 29er, and first real decent mountain bike. I've raced dirtbikes my whole life, so it was an easy transition. It is a used 2013 mamba, and the brakes feel mushy and don't lock up the wheel like my buddy's stock hardrock. His front brake feels a lot better than mine. I've worked on brakes with dirtbikes, so I'm thinking there could just be air in the lines. My question is, is it okay to mix brands of brake fluid? Idk what kind is in it. I was going to take off the reservoir cap and top it off, pump the lever slowly for like 5 mins, top it off again and hope she works better.
Also, he gave me an extra orbea carbon bars, but they are shorter than stock. Could I clamp my grips on not all the way pushed onto the bars to make it a little longer? Like put the grips 3/4 the way on and clamp them nice and tight to get a little more length, I grip on the inside most part of the grip, so I don't see why it'd hurt, but thought it was worth asking before I do it. Also are those bars a lot better than stock?