Arm won't go into RG3120 bridge?

[AKMG]

I just got an arm of the Bay and it said it was for the Edge and Lo-Pro series trems. Well today, I got it in the mail and tried it but the arm won't go in. It worked perfectly fine with my RG550 arm [before I sold that]. I took the lower bushing off and it still doesn't go in. Any ideas?

[David McCarroll]

Could be very slightly bent - got that problem with one of my trem arms......

[aloymetal]

i got the same problem but with my trs II trem.
trs II is same like OFR / FR copy.
my trs arm goes fine with my FR copy... but can't go with my RGT42.
so... i put the FR copy's arm into my RGT.
the diameter of the arm is just a few micrometer less/more from the standard arm i guess. or maybe the size of hole in that bridge.

[GAZ]

Which bridge does your RG3120 have Edge Pro or Lo Pro Edge ? Which trem did your RG550 have ??

[AKMG]

RG3120 has the Lo Pro. RG550 has the Edge.

[Mark DY]

It'll go in - sometimes they can be very stubborn with new bushings.

[Dee]

I was about to say the same thing. Best way to test would be to try it without the bushes on. If it goes in, voila! The bushes are the problem.