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how big is a rubber suspension cone from a mini?
smart51 - 23/12/11 at 07:16 PM

I'm looking for a rubber block to use as a suspension damper in my (pedal) recumbent trike. The mini rubber cone looks OK if it is the right size. The thing is, all the pictures I've found have no reference in them. It could be an inch wide or a foot wide. How big are they?


Mark Allanson - 23/12/11 at 07:24 PM

About the size of a well proportioned woman!


Mark Allanson - 23/12/11 at 07:25 PM

I'm told a 38 D cup


smart51 - 23/12/11 at 07:26 PM

Ah. So perhaps not what I'm looking for.


hillbillyracer - 23/12/11 at 07:30 PM

From memory about 4-5" diameter. I'd think you'd need a fair leverage ratio for the weight you're looking at as a pair carry the front of a Mini with a ratio of a about 3-1 & the rear at 5-1.
Mabye a bump stop would be more in line with the weight you're dealing with?


smart51 - 23/12/11 at 07:47 PM

quote:
Originally posted by hillbillyracerMabye a bump stop would be more in line with the weight you're dealing with?


That's not a bad idea. I've got a spare one somewhere too!


Brian R - 23/12/11 at 08:22 PM

Anything here any good?

http://www.avindustrialproducts.co.uk/products.htm


MikeRJ - 23/12/11 at 08:59 PM

This might also be worth a look. Very similar to the way small trailer suspension units work.

[Edited on 23/12/11 by MikeRJ]


iank - 23/12/11 at 11:13 PM

The theory is fine, indeed the inventor of the mini suspension uses exactly the same for his bikes.
Maybe you can get a 'repair' part from his company.

http://www.moultonbicycles.co.uk/


AntonUK - 23/12/11 at 11:20 PM

This may be to vague tbf, but iirc on either theminiforum.com or minifinity.com there is some drawings for adjustable cones that fit these donuts, that might help? maybe??


Neville Jones - 24/12/11 at 01:56 PM

quote:
Originally posted by Mark Allanson
I'm told a 38 D cup


That size is about right, Mr. Allanson, but the age of the cup contents is all important.

A new cone is akin to an over 50's 38D, an old cone more like a firm and nubile 20 yr old.