Im wanting to put a DMR chain tensioner and guide cage on my bike.. The one im gonna use is a BB mounted one.. i just wondered if this will throw my rank out of alignment or something :S I understand they mount behind the BB drive-side cup flange.. So, when i mount it,do i just screw in the NDS cup to compensate :S
Any help would be greatly appreciated. Im just fed up of my chain jumping back onto the small chainring.. i want it permanently in the middle.