Wanted Shimano 105 Rear Mech 10 speed long cage RD-5700 or 5701

[scooter]

Looking for a 105 10 speed Rear mech please
Medium cage
Either RD-5700 or 5701 as I’m wanting to run a 28Tor 30T cassette
Oh and silver / grey would be preffered rather than black .
Thanks

 

[Walterscot]

I’ve got a silver 5701 rear mech available but I don’t know if it’s a short or a medium cage version. It’s not as short a cage as some but I’m sure someone will be able to clarify one way or another.