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  1. #1
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    Self drilling seat tube

    Would drilling a hole in the seat tube of a Steel frame affect the strength of the frame to a concernable degree?

    The hole would be for the cable of a stealth dropper seat post

    The frame would be one of either Transam, BFe, Blue Pig

  2. #2
    will rant for food
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    Is your issue with the cabling being external on most dropper posts have to do with leg rub when the saddle is in the low position?

    If so, get a KS Lev. Done deal, no work required. I have experience with four posts (Gravity Dropper Classic, KS i9, Rock Shox Reverb, KS Lev), and this one is the best IMO.

    EDIT: the way it works for having a cable mount point halfway up the post, at the top of the stationary portion, they run a little kevlar strand down through a groove in the outer tube. (It can be replaced with very heavy gauge fishing line if you're a moron who didn't read how to adjust the seat rotation)
    Latitude: 44.93 N

  3. #3
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    It's mainly to do with the parts for this bike are coming of another, I could sell the post but it's working for me and I like the aesthetics.

    Not having a remote wouldn't work for me, I've tried KS lever on a friends bike, the post works well, the affect on my riding didn't though

  4. #4
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    Probably depends on where it is and the required diameter. Already have some holes drilled in it (water bottle mounts) but those are down low. I wouldn't put anything within 2" of where your top tube connects with the seat tube or within 1" of where the bottom of your seatpost ends inside the seat tube. What sort of riding will it be (2' drops or 12' drops)

    I'd try other routing first. Voided warranty and broken spine from a busted frame aren't worth the clean look.

  5. #5
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    Drilling holes in perfectly good bike frames | Peter Verdone Designs

    If you decide to do it, here is some good info on how.

  6. #6
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    Smashing link cheers

    Cheers for the advice, drops will be towards the smaller end of the spectrum but I'm 100kg and I couldn't say I ride light.

    Ref warranty, I live in the UK, I've all but given up on ever expecting any company to not be a PITA over legit warranty issues let alone unofficial mods

  7. #7
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    If you go the BFe route - have a chat with Cy @ Cotic - he's very approachable about such things, and I suspect he may have already run it through his FEA package for certain frames.

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