大量丘陵少量平路~如下請益EASTON EC90 SL 38MMcampagnolo bora ultra 35CORIMA VIVAFulcrum Racing Speed 35ENVE 2.5DT Swiss RC 38 SPLINE同RRC 32 DICUTMavic cosmic 40CZIPP 303要大家比較同點解選擇那個