Bicycle Mechanics - front derailleur as chain guide
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03-12-05, 07:14 AM
Hello! Ive decided that i want to run a single chain ring in the front. I am having trouble moving the front derailleur to the position that keep the chain on the top ring ( the bike came with 2 rings and a bash gaurd, so its actually the middle ring i want) Also the adjusting the limit screws did not help. So my question is, how can i use my front derailleur as a chain guide?
03-12-05, 07:34 AM
if your chainline is good, you won't need the front der. take off the derailler, and all of the excess chainrings. get a set of single ring binder bolts (like $5) and install.
if your crank is rivetted...get another crank if you want a single front ring.
03-12-05, 09:06 AM
Even with a good chainline, modern chains are so laterally flexible that they can bounce off a 1x9 system. I use a really old Suntour front mech that can be positioned using the limit screws.
03-12-05, 09:09 AM
or get 3 on 1 bolts and get 2 chainguides cyclocross style
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