FD Problem
Every now and again the bolt A on the picture loosens a bit and the FD cage starts to hang down fouling the large sprocket. Last time it happened I noticed that bolt B (which unfortunately is not visible in the picture) was also loose. Last night I tried to tighten them and bolt B just span round. Is the FD going to fall apart ? The shimano tech docs don't show these bolts.

FDProb by twostage, on Flickr

FDProb by twostage, on Flickr
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Comments
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Sounds very much like the threads are damaged on the deraileur body. Pop the mech off and have a good look. They're cheap enough to replace (ie a new mech) and beats getting stranded when out0
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Wirral_Paul wrote:Sounds very much like the threads are damaged on the deraileur body. Pop the mech off and have a good look. They're cheap enough to replace (ie a new mech) and beats getting stranded when out0
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If you're running 9 speed Tiagra then may as well get the correct one as a double isnt ideal at all. For £22 you can have the correct part and then get all the gears running as they should do. Can you actually use your 30 tooth chainring with a double FD at the moment?? I'd have thought the chain would foul the lower end of the cage.
http://www.pedalon.co.uk/acatalog/shimano-tiagra-front-mech-triple-band-on.html0 -
Wirral_Paul wrote:If you're running 9 speed Tiagra then may as well get the correct one as a double isnt ideal at all. For £22 you can have the correct part and then get all the gears running as they should do. Can you actually use your 30 tooth chainring with a double FD at the moment?? I'd have thought the chain would foul the lower end of the cage.
http://www.pedalon.co.uk/acatalog/shimano-tiagra-front-mech-triple-band-on.html)
Makes the choice of new DR smaller.0 -
It may be that using the double mech on a triple is the reason it has caused the bolt to fail as a double is not designed to move so far across and has probably unduly stressed the pivot bolt.0
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albothegreat wrote:It may be that using the double mech on a triple is the reason it has caused the bolt to fail as a double is not designed to move so far across and has probably unduly stressed the pivot bolt.
Anyway new 4500 double ordered and making various bids on anything triple on fleabay.0