10-21-2008, 06:03 PM
I have a shimano lx mega 9 speed rapid fire shifter. Sometimes to get the thumb shifter to engage I have to keep pushing it over and over again, then finally it grabs and it shifts just fine. Is this type of shifter repairable? If so where can i get replacement parts? What parts inside should i be looking towards causing this problem? The drive train has about 2,000 to 3,000 miles on it.