Shimano rs11 road wheelsetrs11 clincher wheel offering all the technology of shimano wheels at an economical price features 24mm high profile aluminium rim for improved aero dynamics 20 rear and 16 front stainless steel bladed straight pull spokes improve lateral and torsional power transmission rigidity elbow less spokes make for a strong yet compliant wheel high lateral rigidity is produced with a 3mm offset rear asymmetric rim and wide flange spacing the hub uses angular contact bearings