I've noticed most on here post pictures with the housings swooping high over the top bar for brakes, but when it comes to the shifter housings the rear derailleur is WAY too short, if you want your bike to shift well with little interference you may want to get a little more loop. Proper sizing would be to insert your end into the ferrule on the chainstay and loop it around to the derailleur without it wanting to pull on the side of the ferrule, should sit straight in derailleur without kinking to the side. Just thought I would mention for any that don't know.