- The Shop Chain Tool is a workhorse designed to make chain removal, installation, and adjustments simple, safe, and comfortable - Replaceable bridge and new adjustable bridge positioning ensure compatibility with all current and future chains from single to 13-speed and beyond. Visit pedros.com/chainfit for compatibility info. - S2 tool steel pin freely spins on a ball bearing ensuring long life, lower effort, and better alignment. - Integrated guide pin sheer slot. - Replacement pin stored in handle.