Viewing 19 posts - 1 through 19 (of 19 total)
  • D-Shaped Seatpost
  • Premier Icon Jamie
    Free Member

    What’s the benefit of this then?

    Premier Icon cr500dom
    Free Member

    comfort

    Premier Icon wwaswas
    Full Member

    What’s the benefit of this then?

    It’ll fit in a D-shaped seat tube?

    Premier Icon DrRSwank
    Free Member

    Saddle can’t twist?

    Premier Icon AndyRT
    Free Member

    You can’t tell that a forklift drove over it in the factory

    Premier Icon WorldClassAccident
    Free Member

    Lighter than a pair of bombers when you want to ‘own’ someone

    Premier Icon honeybadgerx
    Full Member

    See 650b argument.

    Premier Icon andrewh
    Free Member

    Brilliant wwaswas 😀
    .
    Seriously though, very easy to line the saddle up. I’ve got a couple of even odder shape ones, Yeti ASR-C and Scott Plasma, no problems at all. Both apparently done for aerodynamic reasons. It may help in a time trial on the Plasma at 25mph+ average, whether it makes much of a difference on the Yeti at 10mph average I don’t know, I suspect not.
    Yeti one needs a special adapter to fit a work stand though.

    Premier Icon Jamie
    Free Member

    Saddle can’t twist?

    I must be having a slow day today, as I never even considered that.

    Premier Icon boriselbrus
    Full Member

    Cool! Can we have d shaped steerer tubes as well please so I get the stem on straight every time?

    /wanders off to patent office…/

    Premier Icon plyphon
    Free Member

    I’d rather have my saddle twist than puncture my arse!

    Likewise with a stem.

    Premier Icon boriselbrus
    Full Member

    Actually thinking about it, that would be brilliant. You could do without the clamping bolts on the stem and just have the sfn and pretension bolt.

    I am officially a genius.

    Premier Icon bacondoublechee
    Free Member

    It is to allow forwards/backwards flex for ride comfort while maintaining sideways rigidity under pedalling. The flat edge on the rear will be much less resistant to flexing than the rounded edges and should therefore allow the post to bend backwards to some degree when you hit a bump.

    Premier Icon thisisnotaspoon
    Full Member

    Less torque required to clamp it? I find seatposts rarely slip down, but often spin round.

    Premier Icon Northwind
    Full Member

    Is the point that once you’ve got a D-shaped frame, you have to buy their D-shaped seatposts?

    Oh, also, once a seatpost’s stuck in, not being able to twist it to help get it out will be a super-mega-bollocks.

    Premier Icon Jamie
    Free Member

    Less torque required to clamp it? I find seatposts rarely slip down, but often spin round.

    Makes sense. Not much info/specs about to verify yet.

    Premier Icon househusband
    Full Member

    From some road or time trial bike with a ‘D’ shaped section seat tube so that the tyre can be closer to the aero profile of the tube?

    Premier Icon Jamie
    Free Member

    CX bikes, HH. So might help with mud clearance?

    Premier Icon andrewh
    Free Member

    Northwind – Member
    Is the point that once you’ve got a D-shaped frame, you have to buy their D-shaped seatposts?

    Oh, also, once a seatpost’s stuck in, not being able to twist it to help get it out will be a super-mega-bollocks.

    I just assumed it was an ISP. Although now I look at the pic that’s the bottom, not the top 😳
    As if there weren’t enough seat post sizes out there we now have yet another standard. Bollox

Viewing 19 posts - 1 through 19 (of 19 total)

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