Set ruote freno bici da strada 700C 30/40/50mm compatibili per ruote freno V/C
50mm outer width 22mm Inner width: 16mm. 50mm 2250g. 【Specification】 700C V/C ring brake (front wheel 9x100mm, rear wheel 10x130mm). 【Number of holes】 : The front wheel has 16 holes, and the rear wheel has 21 holes.