Any idea where this is from....after taking the tank of there was metallic ping and I found this on the bottom of the engine...bit worried about resembling until I know what it is..? Thanks Steve

Looks like the spacer that sits inside the rubber mounts at the seat end of the fuel tank under the tool pouch hole. There's 2 one each side mate.

Found it.....ignore above!! Should have gone to Specsavers! !! Steve

Thanks Desert Racer, I know my XR650R blindfold, but the Ten is all new to me! !, it was quite tricky to hold a three quarters full tank AND undo the connections underneath! , but it's the best way to get to know your bike. Steve