The shimano rs21 700c front wheel is a stiff and lightweight clincher wheel which is very durable and of excellent quality and it comes at a competitive price too this wheel has steel butted and bladed straight pull spokes the high lateral rigidity of this shimano road wheel is maintained by using a wide flange spacing which improves stability and reduces the wear of wheel bearings finally the hub of the shimano rs21 700c front wheel uses angular contact bearings which have been designed in