• Seat tube slot in the back? Call the cops.

    Pic (c) Sim Mainey, STW, Stolen by shedfire. Sorry.
    Rear-facing Seat-Post slot. Tut, tut, tut.” said “Jambon” on STW.

    Well I know what you mean, and what you’re thinking.
    But.
    1. Because I’m using much less seat tube extension above the top tube on these new frames than I have in the past as it means you can run your post higher for a given frame size (the post should engage to half an inch below the bottom of the weld between the seat tube and top tube). As there is more metal at the rear of the seat tube, so putting a slot in it has far less effect than putting it at the front – ie: ITS STRONGER THIS WAY.
    2. I am far from convinced there is actually any difference in terms of “goop going down the seat tube” with front or rear slots. I know it’s something that’s often quoted, but I’m really not sure it’s any different, and bearing in mind point 1, I know what I’d rather do (which is why I did it).

     
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    5:09 pm on March 29, 2009 | 21 Comments | # |
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Comments

  • Matt 6:18 pm on March 29, 2009 | #

    I’ve noticed ZERO difference, I don’t even know if the slot is front or back on the Ti29.. I’d check if I cared.

  • shedfire 6:37 pm on March 29, 2009 | #

    Case proven. Seeing as you ride more in a week than I do in a year.

  • dave 8:13 pm on March 29, 2009 | #

    “goop going down the seat tube”
    oh no!

    if you’ve greased your seatpost properly and your bb isn’t gash it’ll make f- all difference anyway

  • Christo 8:19 pm on March 29, 2009 | #

    After explaining this to my wife she suggested a cover (which she’s helpfully suggested she could knit), so if one was bothered by such things and there was a market for it then why not make a seat collar with some sort of cowl? Easy.

    Don’t go nicking my (wife’s) idea if you think it’s good, mind…

  • shedfire 8:42 pm on March 29, 2009 | #

    Dave. I think it’ll make even less difference than that.

    Like the knitting idea though :-)

  • Al 9:08 pm on March 29, 2009 | #

    IMHO its less about shite going down your tube that it is about your QR cam getting covered in shite. This is especially true on Salsa’s that don’t have a plastic, replaceable, bush bit.

  • Matt 9:30 pm on March 29, 2009 | #

    The plastic bit is the problem in most QR’s design one properly and you don’t need it.

  • Al 9:47 pm on March 29, 2009 | #

    Indeed Mr Matt. Which is why I have Salsa’s on all my bikes and 2 spares awaiting worn out Aluminium. But I am a bit odd…

  • shedfire 6:13 am on March 30, 2009 | #

    But you can position your seatclamp front or back independant of where the slot is. So long as you have a bit of grease under the clamp to make things smooth.

    I think my old Bonty Racelite used to have a rubber cover for the rear mounted seatpost slot, made of old inner tube.

  • Ash 9:53 am on March 30, 2009 | #

    Just be prepared, rightly or wrongly, to have it mentioned in every review!

  • shedfire 9:56 am on March 30, 2009 | #

    It’s always fun to be talked about.

  • Mike 10:52 am on March 30, 2009 | #

    Nothing to do with seat tubes… I kinda glaze over…. When do we see piccys of the steel one then?????

  • shedfire 10:53 am on March 30, 2009 | #

    Steel one in V2 right now – should be complete and CEN tested by the end of the week.

  • Christo 1:15 pm on March 30, 2009 | #

    I’ll get her to mock you up a knitted cover… Any colour preference?

  • Adam 6:09 pm on March 30, 2009 | #

    Brant – whats the headtube length gonna be on the steel one? – about to cut some forks that I might at a later date want to fit a steel ragley and not have to bugger about with too many spacers.

    Ta.

  • shedfire 6:12 pm on March 30, 2009 | #

    I will report back later. Pretty sure it was 115mm on the 19in

  • Adam 6:14 pm on March 30, 2009 | #

    I’d better allow for some more spacers then – cutting down for a 16″ 456 at the mo.

    Will headtube lengths generally increase with all this new euronorm stuff then?

  • shedfire 6:27 pm on March 30, 2009 | #

    Yes. A touch longer than my previous designs. Cen is odd.

  • Odd Aaron 6:29 pm on March 30, 2009 | #

    if it bugs you… cut a 3 inch piece of an old skinny inner tube and slip it on like a condom! Why not ditch the collar all together an integrate a clamp below the top tube…like on an Eastern BMX. Than you can slam that seat all the way down for the steep stuff!

  • Al 11:49 am on March 31, 2009 | #

    I could cover my bike in innertube, sure, but why not just design it well in the first place? Inner tube over the QR means it wont open/close unless I lift the tube. Faff. I still hanker aver a bike like my old Cove with a nice bit of seat tube able the top tube so I can slip a crud guard into the frame.

  • BMac 10:24 pm on November 14, 2009 | #

    I just use a wee piece of duct tape to cover the slot.

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