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School me on suspension...

Discussion in 'Bike Reviews, Questions and Suggestions' at netrider.net.au started by JaddoFett, Mar 17, 2016.

  1. Hey hey....

    I've seen this suspension setup on a few bikes on the net, but it seems to only ever be on BMW's (R60's?).
    Is that because it's only used by BMW?

    Any info would be great.

    I think it's a really interesting look, but is it useful/effective suspension?

    How old are the bikes that use this setup?

    Thanks. :)


  2. It's called Plunger Suspension. Mid century bikes from BMW, BSA, Ariel, etc. utilised it. Relies on a combination of springs in the plunger tube, the rubber tyre, and the springs in the seat to provide suspension. Constrains real wheel travel, and obviously inferior to swingarm suspension.
    • Informative Informative x 1
  3. Just to clarify it's the rear suspension i'm interested in.

  4. Yep nicknamed Jam pots
    • Like Like x 1
  5. Yup, that's what I was describing.
    • Like Like x 2
  6. Oh ok, cool. Thanks.

    I imagine it would be in between a rigid frame and swing arm suspension in terms of effectiveness..
    Surely it couldn't be worse than a rigid frame.
    • Agree Agree x 1
  7. Nice old bird
    • Like Like x 1