this post was submitted on 02 Nov 2025
        
      
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I've been using cheap stuff since forever ( because poor) and i've never seen a derailleur so solid with 0 slack. It's a reason why i can never adjust the shift to be exact as the slack will sometine give the derailleur a bit offset.
So THAT'S why I can never make it perfect... Thank you very much!
I've been wondering this for about 20y and just figured it was impossible.
Nope, just cheap hardware. Lol
Well at least it works most of the time and it's cheap! I have to shift my bike in a funny way so it doesn't derail, and i can't limit it too much else it won't shift. It's a feature.
The M8000 derailleur/shifter on my bike are from 2017. The cassette is M7000 (SLX) which is also that old. I've done at least 25000km on this drivetrain. Probably closer to 30-40K. I don't clean it regularly. Maybe once every 2 years. Last year I shamefully fell behind on maintenance and rode it dry almost all summer. This drivetrain still shifts perfectly and new chains don't skip on the cassette. Point being that if this anecdata is any measure, even old, used compontents from these series might work great, if you find some cheap deal.