the 1 that is on my m reg is simaler to that 1 but is hooked on both ends of the threaded bar with nuts on the top and the 2.5 R reg is the same as smifffys. I wud say look at the battery tray and see if there is a tab on the inner and outter side of it with a hole 2 hook through or take a pic and post it so ppl can compare it to there own . Hope this is of help
rpbbie