• If anything the tubes get stronger from having internal routing done. Although you drill holes in the tube it is normal practice to reinforce that same hole quite a bit. Plus most commonly you add a smaller tube for the cable to run through. As this is fixed in both end it help stiffen that tube a bit as well.

  • Okay nice, thanks for the info. I thought it might lose some integrity.

    I have done it on my first frame. I brazed the internal tube and cover all in one go. Would it have been better to braze the tube in and then the cover?

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