Is a slight drivetrain clunk normal?



AlanG

Active Member
Dec 26, 2010
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Originally Posted by QwittenTyme . Then of the candidate derailers, the XT models don't have barrel adjusters- so I'd have to figure out a solution for an in-line, indexed adjuster. So the only slam dunk is a Deore. Not quite the level of gear I was hoping to match with Ultegra, but it does go 6T larger than the 28T Ultegra.
They do make in-line adjusters. You can put it a few inches off of the brifter.

http://www.niagaracycle.com/advanced_search_result.php?keywords=in+line+adjusters&x=0&y=0
 

QwittenTyme

New Member
Mar 21, 2012
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Nice link, Alan. And in-line adjusters would be needed with a new XT derailer and my old Dual Control brifters. The new XT's (or any of the adjuster-less derailers I've seen) can't be drilled out and tapped. There's only about 2mm thickness to tap- barely enough for 1 full thread. Then there's also no indexing indent.

That said, I'm not a big fan of in-line anything, because it hangs an adjustment in harm's way, adds another failure point, and place for the cable to drag on a ferrule, especially when turning. I know lots of people have been doing it, but it looks like trouble to me.

There is an adjuster I can put where the cable meets the frame, but if memory serves, it won't fit with the existing boss-top adjustable stop.

Made an eBay offer just now for a NOS XT, so it's going to be at least a week before I get this all sorted out.

Cheers-
 

AlanG

Active Member
Dec 26, 2010
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I have in-line adjusters on my cyclocross bike and it also has the one at the rear derailleur. My bike routes the cables across the top tube so it can't have the barrel adjusters that road bikes commonly have on the down tube. I haven't had a problem with them at all.

Doesn't your bike have barrel adjusters where the cable housing stops at the down tube? I thought most bikes have these and I guess that would be enough without the rear adjuster if you set up the cable taught enough.

Here is a photo of them on my bike.

 

QwittenTyme

New Member
Mar 21, 2012
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My bike does have adjusters on the down tube, but those are for fine-tuning, like 1/16 turns to a 1/2-turn max, not the multiple turns I'd need. I'm not that good a mechanic ;)

Rtichey, and Jagwire make an adjuster that nests into the shift lever though:

http://www.excelsports.com/main.asp?page=8&major=11&minor=9&description=Cable+Tension+Barrel+Adjuster+for+STI&vendorCode=RITCHEY

http://jagwireusa.com/index.php/products/v/Rocket_Adjusters

They'd be out of harm's way, and so long as they're strong enough, wouldn't add another failure point.

If the bid I put on the older XT derailer isn't accepted, I'll just get the Ritchey adjusters with the new XT.