Gipiemme Paia Ruote Carbon H6.0
The Gipiemme Carbon H6.0 tubular wheels are a good aero option suitable for most conditions, and they come in at a reasonable price for this kind of wheel.
Gipiemme make these wheels in Italy using 100% carbon fibre monocoque rims that are 60mm deep and 20mm wide. The hubs are Gipiemme's own GPMClights, made from forged aluminium, and they spin on sealed bearings – although you can get DT Swiss 240 hubs for £100-£150 more. When I say Gipiemme make these wheels in Italy, they make both the hubs and the rims in their own factory.