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Birdy IV or Brompton MK5 ?

Discussion in 'Folding Bikes' started by bikegang, 31 Aug 2016.

Tags:
  1. bikegang

    bikegang Mod before ride, my bike my style...

    Location:
    Newcastle, England
    And it folds ...:hyper::notworthy:

    14191918_1268184926546061_3397956234692868173_n.jpg
    14102365_1268185049879382_8420495825501881370_n.jpg
    14184460_1268184989879388_8797859686786636396_n.jpg
    14202602_1268185026546051_1074390562662560787_n.jpg
     
    Mrs M likes this.
  2. steve50

    steve50 Disenchanted Member

    Location:
    West Yorkshire
    That front suspension and frame layout looks complicated.
     
  3. srw

    srw AGM 2008, Dykes medal 2011

    I notice the lack of a photo of the folded package from the side, to show how neatly (not) it folds.
     
  4. Cycleops

    Cycleops Veteran

    Location:
    Accra, Ghana
    What are the comparative weights?
     
    bikegang likes this.
  5. shouldbeinbed

    shouldbeinbed Rollin' along

    Location:
    Manchester way
    It's dead easy and makes for a supremely comfortable ride. My current Birdy is 14 and the best riding folder I've ever owned, Including my Brompton.

    @srw. I would suggest now Birdy have gone for the curved and hinged top tube that the folded package will be quite similar, not as small obviously. The older style frame with the intact top tube and fold under front wheel was slightly longer not that much larger than the Brompton. And better than the Dahon as it all interlocks without magnets
     
    steve50 likes this.
  6. TheDoctor

    TheDoctor Man-Machine Staff Member

    Location:
    Stevenage
    Complex fork is complex. How does it ride, though?
     
  7. TheDoctor

    TheDoctor Man-Machine Staff Member

    Location:
    Stevenage
    Actually, didn't the Birdy fold once involve the front suspension releasing to tuck the wheel away, or am I getting mixed up? If you don't have to do anything to the fork it doesn't matter how fiddly it looks.
     
  8. shouldbeinbed

    shouldbeinbed Rollin' along

    Location:
    Manchester way
    Yes you're spot on, the top tube was a single piece, the up and under front wheel was how the folded package remained so small.

    The spring unclips at the frame end and the whole front piece pivots down and under the bottom of the conventional looking straight down fork piece.

    The niggle is routing the brake cable through the fork pieces and around that pivot point, it makes threading a new cable or outer a bit fiddly. You have to keep one or the other as a guide for the new one.
     
    Last edited: 31 Aug 2016
    bikegang likes this.
  9. OP
    OP
    bikegang

    bikegang Mod before ride, my bike my style...

    Location:
    Newcastle, England
    It should be OK since there is still 1 hinge on main frame, so smaller fold than Birdy. But much wider fold than Brompton as you can tell from the photo.
     
    Last edited: 1 Sep 2016
  10. OP
    OP
    bikegang

    bikegang Mod before ride, my bike my style...

    Location:
    Newcastle, England
    About 12 Kg according to dr. frankenstein.
     
    Last edited: 1 Sep 2016
  11. Kell

    Kell Senior Member

    It looks good.

    Certainly more stylish (IMHOOC) than a standard Brompton and better looking than the older Birdy.

    I would say the only bad thing is that because they fold it the other way to Brompton your drive train is exposed when folded.

    This could cause problems on packed trains with people getting their nice work clothes dirty or when (if) it goes in a car.
     
    Last edited: 1 Sep 2016
  12. srw

    srw AGM 2008, Dykes medal 2011

    Which is a big problem. The Brompton package is neatly designed so that you can comfortably lift it with one hand and walk with it. I'd be worried about barking my shins on those handlebars - either that or I'd need to hold it so far away from my body as to be very awkward.
     
  13. GrumpyGregry

    GrumpyGregry More gruff than grumpy

    Location:
    West Sussex
    ^This

    And I remain unconvinced that a QR for the bars, especially cow horn style bars, where considerable leverage will be exerted on that QR, is a great idea.

    So in short, too wide, drivetrain in wrong place relative to fold, or vice versa, and questionable safety when honking...
     
  14. srw

    srw AGM 2008, Dykes medal 2011

    Ouch. I didn't spot that. I had a Dahon for a while, and among its many flaws was the fact that there was a QR on the handlebars, which made it extremely difficult to get the handlebar adjustment right. And that was a QR that wasn't essential to the fold, so I could just tighten it up fully and then leave it alone.

    A QR attaching the bars to the stem? That's asking for disaster.
     
  15. Cycleops

    Cycleops Veteran

    Location:
    Accra, Ghana
    Last edited: 1 Sep 2016
    bikegang likes this.