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wrecked
Just got the new Tiagra 4700 rear derailleur. Noticed that contrary to the specs on the website I bought it from the max sprocket size is listed as 28 Tooth rather than 30. The tech docs back that up as well: http://bike.shimano.com/content/sac-bike/en/home/components11/road/Tiagra4700/rd-4700-ss.html
Am I going to run into trouble with a 30T sprocket, or is there likely enough wiggle room to get away with it? Feeling lazy so don't want to return it and get the long cage version.