Originally Posted by darkrider
ok, on my new 4900, which has the rapid fire type shifters, doenst shift a lot of the times. this mostly happens on the front cog/gear. ex:i upshift and all that happens is a loud grinding noise that announces that something went wrong. am i shifting wrong or is something in my gears, shifters etc wrong?
Take........it.............back.............to..........where...............you.............bought.. ...........it...............from................