I have a pair of Tektro R540 brake callipers (front and rear) which have been taken off a Hoy road bike. They are in good condition with just a little surface corrosion as can be seen in the photos. They are finished in a dark silver/grey colour. I have put them on eBay at £25 but am open to any offers from members of this forum. Collection from Nottingham or I can post for £2.95 (UK mainland). If you are interested, please message me.