Although many love the Racing Ralph's, and they are extremely light and fast rolling, I ride very rocky, muddy, slippery terrain and the Ralph's just do not cut it, for me anyway, especially in the front. The stock bars and seat post are pretty heavy, and I had the parts, so I swapped them out with some lighter stuff. I hated the Hayes Brakes. Turkey Gobble in the rear, and very twitchy. I went with the best brakes I could afford, which were the Juicy Sevens. My son's RZ120-2 has the Elixers and honestly they feel about the same as mine. I am very happy with the Monarch 3.3. In the Stiff setting I honestly have no problem with pedal bob climbing, and opened up for the downs it feels great. If you make sure your shock is set properly with air/rebound you should be very happy with it. Again comparing to the RP2 on my son's bike, I would much rather stick with the Monarch, or a Fox RPL, which was on my Rush. My rear derailleur did have its moments of ghost shifting, and when it wrapped itself around my cassette and destructed last week, I went with the X-9 Set up. They were on sale at Pricepoint, so I went with the medium cage and shifter combo. Before I put the big front tire on the bike I was at 27lbs. with Panaracer Fire XC Pro's front and rear.