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Old 11-14-10, 11:30 PM   #1
folder fanatic
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The Brompton Bicycle Suspension Hard Block In Action

How would you like to see the hard type suspension block in action:
I bet many of you were wondering what is all the fuss is about. We Brompton users sure feel it, but never had the chance to see it in action for 2 full min. of video (it sure gave me a headache watching it)!

This version is far better on the eyes (mine at least):

Last edited by folder fanatic; 11-14-10 at 11:33 PM.
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Old 11-14-10, 11:57 PM   #2
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That is quite fascinating.
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Old 11-15-10, 09:50 AM   #3
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I still see the rear triangle flexing so I wonder if it's actually working?
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Old 11-15-10, 02:00 PM   #4
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There is a need to grease the center bolt inside the rubber suspension piece,
a squeak with each power stroke was eliminated that way..

the author of the Brompton Book mentioned the source of the squeak, and the cure.
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Old 11-15-10, 02:22 PM   #5
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[shrug?] To me the video shows that the suspension is not very good. It bounces more with pedal strokes than anything else. Note how the opening and closing of the bush is so regularly timed with pedaling. Yes it works when the rider stops pedaling - but the frequency with which it is flexing (so regularly) shows that it's being excited by pedaling more than anything else - real roads don't have bumps of the same repeating magnitude!
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Old 11-15-10, 03:41 PM   #6
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It's working. does soften the roughness of the ride of those little tires when they are properly pumped up.

now there are 2 densities of suspension block,
some after market modifiers have built a different setup .
using automotive engine valve closing springs and even stiffer elastomers.
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Old 11-25-10, 09:57 PM   #7
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You're saying this is the firm suspension option as opposed to the standard suspension? I haven't decided on which one I want but am leaning toward firm- I weigh about as much as the maker of the video.

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Old 11-25-10, 10:57 PM   #8
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IMO, tire choice is the main thing that will dictate comfort on a bike.
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