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  • nterested in trying this too.
    Debating best place to drill, i.e. front / side / back and also would doing the same on a carbon post be certain death...

    Don’t do carbon! Or cnc’d alloy or titanium. We had Parlee make us a custom seatpost once for rear lights. I think it was a drilled normal Parlee post that they then added some structure to?

    The easiest post to do this to is a Thomson. You just have to drill thru the cradle and route it up the hollow seatpost. Make sure that you counter sink the hole thru the cradle and de-burr it.

  • Thanks for the tip.

    I was considering doing it through the side of a Thomson or Ritchey Alloy post like you did for a post mount SON light as you did. Would these be suitable?

    I guess if you go out the top you need to come back down the outside for a Son Seatpost light. One could mount on back of the saddle via rails with adaptor or drill through backplate on Brooks C15 all weather.

  • Don’t drill thru the side of a Thomson, it’ll crack. I’m not to familiar with the Ritchy posts manufacturing process so I’d prefer not to recommend it.

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