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Rear derailleur barrel adjuster

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Rear derailleur barrel adjuster

Old 12-02-18, 06:16 PM
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shine2000
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Rear derailleur barrel adjuster

I don't know if I messed up my barrel adjuster or not.i was adjusting it trying to fix my gears and I don't know if I tighten it or loosen when it came off.it comes back on but it seems like it is loose when I loosen it up.




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Old 12-02-18, 06:21 PM
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DOS
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Turning it into the derailleur loosens cable, dialing it out tightens. You should start from beginning by disconnecting cable from the derailleur. Screw tthe adjuster all the way back in. Then pull the cable as tight as you can (a needle nose pliers helps but isn’t necessary), and reattch to the derailleur cable bolt. Once the cable is attached, you should only have to turn the adjuster a turn or two outward to get the tension right.
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Old 12-02-18, 06:43 PM
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Originally Posted by DOS View Post
Turning it into the derailleur loosens cable, dialing it out tightens. You should start from beginning by disconnecting cable from the derailleur. Screw tthe adjuster all the way back in. Then pull the cable as tight as you can (a needle nose pliers helps but isnít necessary), and reattch to the derailleur cable bolt. Once the cable is attached, you should only have to turn the adjuster a turn or two outward to get the tension right.
Very helpful thanks!
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Old 12-02-18, 07:12 PM
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Technically you are not adjusting cable tension as much as effective housing length. As you turn the adjuster you can watch the RD cage/pulleys move and center the upper pulley on the cassette/freewheel cog to dial it in pretty close to start. I personally like to set the adjuster out a few turns to start so I have adjustment in both directions if needed. You should rarely have to move an adjuster more than 1/4 - 1/2 turn to get things "just right" if everything is working correctly.
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