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Tiagra Brifters.. What's that little knob?

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Tiagra Brifters.. What's that little knob?

Old 03-12-09, 11:24 AM
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bhop
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Tiagra Brifters.. What's that little knob?

I have a Jamis Aurora. It's got Shimano Tiagra brifters. On the cable that comes out of it, there's a little twisty knob. I'm just curious what that does?
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Old 03-12-09, 11:39 AM
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It's a barrel adjuster, for changing cable tension to tune your derailleur.
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Old 03-12-09, 11:53 AM
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Originally Posted by tellyho View Post
It's a barrel adjuster, for changing cable tension to tune your derailleur.
That's what I thought, just wanted to be sure before I messed with it. Thanks.
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Old 03-13-09, 12:16 AM
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You can mess with it experimentally; twist it and watch which way the rear derailleur goes. Then you can tune as you ride.
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Old 03-13-09, 08:27 AM
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If you experiment, note the relationship of the two parts BEFORE you change anything. That way, if you make the shifting worse, you can return to the original setting before experimenting further.
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