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Image 1 — Need solution opinion to fix chain line angle issue
Image 2 — Need solution opinion to fix chain line angle issue
Image 3 — Need solution opinion to fix chain line angle issue
Image 4 — Need solution opinion to fix chain line angle issue
▲ 0 r/sram

Need solution opinion to fix chain line angle issue

I have a hardtail MTB with SRAM 1x12 speed (10t-50t rear), 26t chainring with 3mm offset. It has metal grinds noise when on the largest cog. I figured the biggest contribution is the chain line is very angled inward when on the largest cog, which makes the chain to grind on the teeth of the cog. the chain line currently centers on the 5th cog counting from the smallest cog.

I usually on uphills with this MTB, so I'm thinking to adjust the center chain line inward about 6mm to move the center to the 7th/8th cog. here are the solutions I'm thinking, please feel free to comment:

  1. use 6mm offset 26t chainring, this will move the chainring inward 3mm
  2. remove bottom bracket spacer to move chainring inward, but I didn't find any existing spacers at the drive side
  3. move rear cassette outward, there seems some space to do this. Update: I measured the space after the chain being at the smallest cog, only 2mm space left, seem not enough space. :(
u/zwmailinglist — 8 days ago
▲ 1 r/sram

SRAM NX 26t chainring options

I have a hardtail MTB with SRAM 1x12 speed (10t-50t rear), the original is SRAM x-sync 2 34t chainring, switched to SRAM 30t, I love going uphill so changed to Race Face 3 26t since there is no SRAM chainrings less than 30t.

Although Race face 3 chainring says compatible, and it is ok most of the time except make metal scratching noise when going up steep hills with 50t cog. I'm giving up on this chainring after found no cause for a few weeks.

Any data points of 26t chainrings that you guys have or had and are perfectly compatible? thanks in advance.

UPDATE:

I switched back to 30t SRAM chainring, and found the noise is less but still there.

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u/zwmailinglist — 2 months ago
▲ 2 r/reolinkcam

Do reolink UID servers still support old cams?

I have 5+ very old reolink cams like RLC420, RLC410, they worked good for a few years, and I was able to view the live video from internet. I moved and didn't install my cam for a couple of years, then although viewing from my home wifi is good, viewing from internet does not work anymore, won't connect, I'm sure the UID server is enabled. anyone has data point for those old cams? I already updated firmware to the newest available one.

reddit.com
u/zwmailinglist — 2 months ago