I was hoping that someone could solve a bit of a mystery for me.
I recently upgraded my wife's bike to 11-speed and listed the old 10-speed bits on eBay rather than just bin them. I was somewhat surprised (absolutely gobsmacked) when the rear derailleur (Ultegra 6700 medium cage), which I started at 99 cents (eBay USA site) sold for over $270!!
Are these things rare as rocking-horse shit? Any ideas why it would sell for that price?
If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.