rbent Forum - Rear DR cable fray

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Rear DR cable fray (Read 2335 times)

FlyingLaZBoy

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'16 ICE SprintX fs,
'16 Rocket, '12 KHS
Mocha

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Rear DR cable fray
Mar 14^th, 2017, 12:54pm

Jay posted a pic of the SRAM X-9 10-speed shifter on his Performer, where the shifter cable had frayed and broken after only about 1500 miles.

As I was swapping out rear wheels on the SprintX last night, I felt a wire poke my finger... and lo and behold, the shifter cable on MY X-9 10-speed shifter is starting to fray, after only 1,200 miles / 4 months. I've never had a cable break on any X9 9-speed shifter, before.

Not sure what to do to the DR to help prevent this, but I've showed pics of it to John Paulus, and will be taking it down to him later this week...

PB

« Last Edit: Mar 14^th, 2017, 12:55pm by FlyingLaZBoy »

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catroad254 rbent member Posts: 239	Re: Rear DR cable fray Reply #1 - Mar 14^th, 2017, 6:47pm That bend is not a great design but I have gone over 5000 miles on cables with the same X9 derailleur on the Meta. I think the angle of cable entry is the critical factor.
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FlyingLaZBoy Moderator '16 ICE SprintX fs, '16 Rocket, '12 KHS Mocha Posts: 5803	Re: Rear DR cable fray Reply #2 - Mar 16^th, 2017, 10:37am The angle is worst in highest gear, 50/11 -- wondering if it's an issue with the installation of the DR, with the orientation angle. Oh, well, it'll get resolved. PB
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FlyingLaZBoy Moderator '16 ICE SprintX fs, '16 Rocket, '12 KHS Mocha Posts: 5803	Re: Rear DR cable fray Reply #3 - Mar 20^th, 2017, 10:46am ICE and the SRAM rep say that this has occurred a few times, and they are investigating. In the meantime, John replaced the cable, and took some emery cloth to the leading edge of the derailleur ramp to round it off a bit. I'll keep an eye on it, over the next couple of months... PB
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jayg

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Re: Rear DR cable fray
Reply #4 - Mar 20^th, 2017, 7:51pm

Quote from FlyingLaZBoy on Mar 20^th, 2017, 10:46am:

ICE and the SRAM rep say that this has occurred a few times, and they are investigating. In the meantime, John replaced the cable, and took some emery cloth to the leading edge of the derailleur ramp to round it off a bit. I'll keep an eye on it, over the next couple of months...

PB

"...took some emery cloth to the leading edge of the derailleur ramp to round it off a bit." That's what I did to my X-9 derailleur. Cable hasn't frayed again, but haven't really put very many miles on the bike, since.

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FlyingLaZBoy

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'16 ICE SprintX fs,
'16 Rocket, '12 KHS
Mocha

Posts: 5803

Re: Rear DR cable fray
Reply #5 - Mar 21^st, 2017, 12:49pm

Quote from jayg on Mar 20^th, 2017, 7:51pm:

I anticipate doing more riding over the April-July timeframe than I did over Nov-March, so we'll see how things compare...

PB

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jayg Five Star Member rbent member Posts: 4126	Re: Rear DR cable fray Reply #6 - Mar 21^st, 2017, 8:37pm See BROL thread concerning the subject: http://www.bentrideronline.com/messageboard/showthread.php?t=132966
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FlyingLaZBoy Moderator '16 ICE SprintX fs, '16 Rocket, '12 KHS Mocha Posts: 5803	Re: Rear DR cable fray Reply #7 - Mar 22^nd, 2017, 2:48pm Looks like the exact same issue to me....
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