WarehamBoye

Hello, I have a old onza t-mag, i need to take just one link out of my chain but cant so im going to buy a new one link/half link chain. Thing is which one is best? Also i need some longer crank arms what ones would you say? I find it hard to ride compaired to a old 1992 x-hydra anything i can do to make it feel better i dont want to buy a different frame until i learn what im doing.