Bicycle Mechanics - front sti won't index

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA

View Full Version : front sti won't index

winston smith
07-18-03, 01:16 PM
I'm tuning up my road bike and my front shifter won't index into the big gear. It moves but won't stay there.

Should there be a click. I'm not getting one.

I checked my cable tension which seems to be good.

It's an ultegra sti.

thanks for the help.

1oldRoadie
07-18-03, 02:10 PM
DID YOU LOOSEN THE CABLE AT THE FRONT DÉRAILLEUR?
winston smith
07-18-03, 07:21 PM
yes.

Rev.Chuck
07-18-03, 07:40 PM
The ratchet is sticking. Get a can of carb cleaner and spray it into the internals of the shifter, then action the shifter a bunch, leave the cable loose and hold it snug with your hand. Do this a couple of times and the ratchet should free up. After you free it up drip some light oil in there to keep it smooth. If it does not free up the ratchet spring is broken and you will need to replace the shifter.
Be careful with the carb cleaner, it is hard on your skin and eyes.
1oldRoadie
07-18-03, 09:06 PM
Or, you have retightened the cable at the deraillier when the shifter was in the wrong position.