Is this "speed unit" some kind of warning device? I see lots of references to the bracket, but not much on the device itself.
I must admit to being a bit skeptical about the notion that the loom "rubber band" is meant to hook on the speed stay bracket, even though that's the way mine came to me. It's a pretty awkward fit; the angle isn't right for either end of the strap:
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There's a bottom tab on the frame which seems to be designed to receive the lower end of the strap; I don't have a photo of it but when utilized, the strap lines up much better with its upper tab:
(Attachment Link)
I came across this SB today; I’ve had it all along
