What on earth are these levers? I've owned this bike for some time and it was sort of a hire bike before I owned it so it's had a few tumbles (so excuse the mess), but I can't figure out what 'range' this is. I know they're not 6700 because they look different and the Shimano guides and instruction videos don't seem terribly relevant.
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I can just about make out 'flight deck' printed on the plastic capping on the rear brake (if I take off the bit of gaffa tape that usually hides it and stops it rattling).
I have a 9 speed cassette on the rear if that's any help.
I need to ID them as
something has happened that means I need to change the brake cables, so need to be able to look up guidance.