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front derailer question(5 posts)

front derailer questiontedr
Mar 2, 2003 6:38 AM
Guys I am fairly new to road biking, coming from mt biking and need to adjust my front derailer as every once in awhile it will throw the chian off the big chain ring
it doesn't do it all the time just every now and then - the problem is the h &l limit screws are not marked - it is a shimano 105 derailer on a 2002 Klein Quantum - how do I know which is which
Thanks, Ted
re: front derailer questionRusty Coggs
Mar 2, 2003 7:14 AM
Outer screw,closest to the chainrings is the hi limit.
Don't overdo the adjustment.Spoke Wrench
Mar 2, 2003 8:26 AM
Probably 1/4 turn clockwise will be enough. The most common mistake that inexperienced bike mechanics make is to make adjustments in too big increments.
re: front derailer questionmackgoo
Mar 2, 2003 9:34 AM
One thing you could do so you don't have to try to commit it to memory is "nuke it out" as we say in my industry. Look at the derailleur and the two screws. You should be able to see the "nubs" the screws work against to limmit the movement. Then figure out which way the derailleur must move for each screw to limit the movement. Now you've understood the function of the screws and you'll never have to remember, just look at it and "nuke it out"
An excellent tutorial............davet
Mar 2, 2003 7:22 PM

Follow these instructions, in order, and you will have a sweet working front der.