The shimano rs010 rear road wheel is part ofthe shimanoroad sport series it usesthe race proven dura ace wheels technology but at a more economical price making them suitable for everyday riding or use at local races the rim has 24 holes and a presta valve hole and features a wear indicator to help detect when your rim becomes worn out the spokes are black stainless steel and laced 2 cross onto 91011 speed compatible hubs with wide flanges angular contact bearings and steel axles freew