Derailleur limit screws should just be Left and Right
#26
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The limit screws are NOT used to center your chain over the gear/s. The barrel adjuster attached to the cable running to your derailleur is used for that. As pointed out above, the Limit Screws are only used to keep your chain from being shifted into your spokes (L) or into your frame (H). For the barrel adjuster, turning clockwise adjusts the derailleur outwards and vice versa.
this is an excellent How To video
this is an excellent How To video
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In fact, for some (most?) Shimano rear derailleurs, the high limit screw IS used to dial in the initial position in relation to the high gear sprocket.
After that is set, the cable is adjusted.
After that is set, the cable is adjusted.
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This. There are way too many different designs, and many derailleurs have no H or L markings. Just look at the darn thing and figure out how it works. Couldn't be more simple.
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I don't know what the hell you people are talking about, with screws labeled "H" and "L". I just looked at mine, and they're clearly "+" and "x".
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Heh. That one took a moment to process, but I got there.
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#31
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It's not a problem. Ever.
Even if it was, shift into the highest or lowest gear and turn the screw, see what happens.
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I don’t see a lot of the models of derailers you are talking about because those just aren’t in the pipe line. Most all the derailers I see are 9 speed but that is likely the bulk of derailers that most people are going to see. I’ll agree that if you can see the stops the whole process is easier but there are vast numbers of derailers…front and rear…where the stops simple cannot be seen from any angle.
It's not a problem. Ever.
Even if it was, shift into the highest or lowest gear and turn the screw, see what happens.
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