R clip

[SpeedTriple1]

Hi Guys
After some help please.
I've just had the rear wheel out on my 19 plate XR and once it was all back together and test ridden I was going back into the garage and noticed a R clip on the floor!
I can not see where it has come from and need some help!
It is straight and flat not like the bent ones for the break calipers but about the same size and I've no idea where it can be from?
Any ideas please???
Thanks

[Watshot]

The only R clip involved with rear wheel removal would be this one in the rear brake caliper pad retaining pin.

If it's not that one, maybe it's something that's just been kicked up from another project and isn't off the bike?

[SpeedTriple1]

Hi thanks for your reply.
Yer that was my first  thought but its not that one as its straight and that one is bent at the top.
It could be from one of my other bikes but I dont recognise it and am normally quite good at checking and looking after all my parts.
Thanks

[SimonUK]

Removed and installed both wheels many times, also stripped bike down a number of occasions. Only 'R' clip I have come across is on the rear brake caliper.