The 1125 you refer to is the length of the oem pull rods, they are 112.5mm in length (center-to-center). A longer rod will lower the rear of the bike.
Check the torque specs in the front of the manual...tighten as required. The unitrack-to-frame fastener is in too close a space to get any torque wrench on it (that I have, anyway). You can use one of the pull rod fasteners as a guide to how much 'squeeze' you put on the frame bolt. The specs are within a few ft/lb of each other.
Have fun!







