A pair of Zipp Tangente Clincher Road Tyres. Only been used for about 100miles so in very good condition.700x21mm
They retail for about £60.00 each.
14 months of aerodynamic development...the first windtunnel designed tyre 1-3 watt power savings 21mm width is the optimal blend of aerodynamics, rolling resistance and durability Supple 290 tpi casing Corner-hugging silica rubber compound Puncture resistant construction - hey, you can't win if you don't finish