On spec , the Nashbar 105 is the one to pick of the ones you link . I can ' t really recommend any of the others for your use . On spec , the Nashbar is better than a Kona Jake . components , better rims , etc . keep in mind that it isn ' t always about value for spec . One of the things I don ' t like about buying online is that you don ' t get to try a given size on to see if you like the fit . Not every 56 cm bike fits the same . Also , the bike will come partially assembled , making you have to finish assembly yourself , or pay someone to do it . So while the Kona might be more , being able to test ride it might be worth the extra cost . As far as component quality , you definitely get something for your money as you go up . The lowest grade stuff is heavier , shifts less easily , and breaks more readily . 105 is considered the budget racer ' s choice , and is quite good . But you can get good performance and durability further down . Tiagra is nearly as good as 105 , and Sora or Claris will do if you are tight on budget . I have and ride rim brake bikes . A good quality set , adjusted well , is actually pretty good . Disc brakes work better in the wet , and are very nice for braking on hills .