RM 125 C Swing arm

[mainline]

I don't think it would ever be specifically mentioned. As long as you can prove a part is legal if protested you're ok.

They can't start printing rulebooks listing every legal part for every make and model.

[Dono113]

I bit the bullet and bought the one in the states 145 delivered

[JohnnyO]

Where is the mounting lug for the brake stay arm?

[Dono113]

Gotta make one by the looks

[JohnnyO]

It's not the optional 77 arm then but a 78 arm. Good luck!

[Ted]

Here is the proof.

RM 125 M and S





RM 125 A





RM 125 B





RM 125 C






As you can see in the photos the RM 125 B uses the same Torque Link as the RM 125 M, S and A models.
It does not use the 1978 RM 125 C Torque Link whick is a floating brake setup.

Looking at the photo of the optional aluminium swingarm it does not list a Torque Link to make the option viable. One could only assume that the standard RM 125 B Torque Link would bolt to the swingarm as per standard steel swingarm. 

How anybody could think that this Suzuki aluminium swingarm is not period correct is beyond me.