derailleur length??????

helen coakley
helen coakley Posts: 270
edited February 2009 in Road beginners
Help...

not really understanding gears etc i need a hand.... i currently have a 36/50 front and 12-16 rear with a short rear derailleur

i am changing to a 34/50 with 11-25 rear.... i also want to change my rear derailleur and have a option to buy cheaply a long rear derailleur..will this work?
or should i get a short rear??????

hope that makes sence..... :?:

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