The shimano rs010 700c front road wheel is part ofshimanosroad sport wheel series using the 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 20 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 a quick release hub with wide flanges contact bearings and steel axles available in 20