HI,
I know that trying to fix it and breaking it pain, with my ultrega shifter (R), my so called new used bike worked three time out the barn and then the right shifter started acting up, SO I used 1 whole can of WD40 on cleaning the darn thing out, and the upshift started working but the down shift would only work if you squezed the brake and the dang shifter together and clickig it to the right and it works flawless Most likely the spring is broken .
sheeeeeeeeut/..
So I searched BBAy and found some tiagra shifters suposed to be ok, but lost the BID,
I then found a bike store online that would sell me a (R) utltrega shifter for 110.00 bucks,
geezzze , They shipped them over night (sucker) and then my LBS did the install and mentioned hey you may wish to change that handle bar tape while we have it off.
SO, I plopped down another 55.00 for the install new tape and cables , I am stoked to ride on this saturday andwake up the worst sore throat that went into the croup,crude.PS the snow gods are trying to mess up the road today.
So me bike is already to go for the past few days but I am not quite sure if I am up to ridding yet..
Geezeee...
Doug