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right ultegra shifter will not down shift (help)(7 posts)

right ultegra shifter will not down shift (help)jradford
Aug 12, 2003 5:57 AM
I was out on a ride and I could not down shift. I could go up the cass but not down. Later I found if I pushed the brake lever to the right (held it in place) and then pushed the shift lever it would down shift.

Do I need to replace this or can it be fixed?
re: right ultegra shifter will not down shift (help)boyd2
Aug 12, 2003 6:45 AM
Sounds like it needs to be flushed and lubed. This is a common problem.
how do you flush and lube the shifter.jradford
Aug 12, 2003 7:11 AM
how do you flush and lube the shifter.Spoke Wrench
Aug 12, 2003 8:20 AM
I don't use products like WD40 very much, but I think that they're perfect for this. Pull the brake lever so that you can see into your shifter. Give the inside a good spritz. Now blow out the gunk with a good blast of compressed air. I know it sounds a little medieval, but it seems to work wonders.
Alsocurlybike
Aug 12, 2003 7:06 AM
If flush and lube does not work, Ultegra has a 2 year warranty. Go back to LBS. Dura-ace is a good replacement and has a 3 year replacement warranty, it is not immune to the same failure.
Flush and Lubeboyd2
Aug 12, 2003 11:19 AM
Take the shifter pod out of the housing. Use a really good cleaning solvent like "White Lightening - Clean Streak". Clean all the parts, let them dry. Lube it up (I use Tri-flow). Re assemble and ride.

It is pretty simple and can be done on the bike, but it requires that the you remove the derailure cable.

There are manuals available on-line to help with the removal and installation.
re: right ultegra shifter will not down shift (help)Wesman
Aug 13, 2003 9:19 AM
I had the same problem on my 2 year old Dura Ace. The WD-40 route didn't work so I took the warranty repair route.