Subject: Specialized Allez 8 to 10 speed Posted by: Jeff on August 14, 2006 at 19:29:07:

Message: Is it possible to upgrade a Specialized Allez with Tiagra rear derailleur and remaining components being Tiagra to a 10 speed? What are the minimum components necessary to complete the transition? Would an Ultegra cassette, chain and right shifter get the job done or would more or less components be adviseable?