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Sram NX troubleshooting

HOME FORUM RIDING FEELS GOOD FORUM TECH TALK Sram NX troubleshooting

This topic contains 4 replies, has 3 voices, and was last updated by  caRpetbomBer 1 week, 4 days ago.

Viewing 5 posts - 1 through 5 (of 5 total)
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  • #820803

    caRpetbomBer
    Participant

    Trying to figure out a slight problem I’m having with a Sram NX eagle install. I have some chain noise in the lower gears. Shifting through the hole cassette is butter smooth. B tension is good. Chain length looks good here are some pics.

    The rear hub is a bikehubstore M270 which has been great for a low end mountain bike hub.
    Waiting for the steel free hub body to come in stock also changing the aluminum axle to a steel version and new bearings. well i don’t think the hub is the problem. Any help much appreciated.

    Santa Cruz

    #820808

    BlurredLines
    Participant

    NOT a mechanic, but my first thought on this is how is the chain line? If you’re only experiencing issues in the tallest cogs I’d suspect that might be a good starting place

    #820818

    FastTimes
    Keymaster

    Chainline is a good start for sure. Are you using the SRAM chainring? If not, does your ring have the correct offset? What cranks?

    The chain length looks ok, could perhaps lose a link yet. Unless this is a dually, where you need to account for dynamic ride position vs static. B-tension is clutch on the 12 speed stuff and every turn to adjust it affects position and cable tension as well. I find the upper limit needs to be adjusted in tandem with b-tension.

    You’re welcome to pop in and i’ll help you get it dialed @carpetbomber

    #820823

    caRpetbomBer
    Participant

    The cranks are some old 960 XTR running a wolf tooth NW chain ring. Ill measure the chain line to see. With a 142mm rear end you need a 49mm chain line. With boost 148mm you need a 51mm chainline.

    #820940

    caRpetbomBer
    Participant

    Thanks for the suggestions. The issue has gone away. Seems like it only needed some time to break in.

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