Folding Bikes - Special suspension part for Brompton

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Dynocoaster
02-23-12, 09:53 PM
$250 http://www.ebay.com/itm/BROMPTON-FOLDING-BIKE-BICYCLE-CUSTOM-SUSPENSION-KAMOYA-CREATIONS-JAPAN-VERY-RARE-/300669125819?pt=LH_DefaultDomain_0&hash=item460146c4bb

Rather spendy for spring.

Azreal911
02-23-12, 09:59 PM
That's awfully expensive for a spring with some elastomer in it. It's not even a shock absorber. I have never heard of a brompton owner complain about the rubber stopper on the bike and some even found like $2 alternatives! To me this is like a solution to a problem that was never there to begin with.
fietsbob
02-24-12, 11:56 AM
A lot of Yen, for an automotive valve spring, probably, ... not even Titanium.

rhenning
02-24-12, 01:03 PM
But he only has to sell one. Capitalism at its best. Roger
badmother
02-24-12, 01:17 PM
I like this: "JAPANESE INSTALL INSTRUCTIONS WITH STEP BY STEP PICTURES".

Translation programs tend to create a lot of confusion..
Amuro Lee
02-24-12, 01:36 PM
This one is much better, I think. :D
http://tw.myblog.yahoo.com/bikefun-bikefun/article?mid=11023&prev=11464

http://blog.yimg.com/2/9Met_Fp7s5._MPkWTZM8yTQwNm_WQs5FK5dV9aLDl7NiJb.7cJqIPw--/20/l/QUAjscgvv.vV1rU7oQFBcg.jpg
kamtsa
02-24-12, 01:40 PM
A lot of Yen, for an automotive valve spring, probably, ... not even Titanium.

A lot of USD$ but not a lot of Yens. In Yens it's only $60 http://kamoya.info/11_41.html

There is one somewhere with my name on it. Hopefully it will arrive mid March and hopefully it is better than the stock suspension ;-)
cbike
02-27-12, 01:34 PM
This one is much better, I think. :D
http://tw.myblog.yahoo.com/bikefun-bikefun/article?mid=11023&prev=11464

Looks nice and also more protected from pinches. These spring suspension seem to be softer than the stock rubber suspension. Is that correct?
jur
02-27-12, 02:37 PM
After modding my Downtube Mini from spring suspension to rubber block and noting the vast improvement this yielded, I will never put a spring on my Brommie, that would be a step backwards.
2_i
02-27-12, 03:08 PM
$250 http://www.ebay.com/itm/BROMPTON-FOLDING-BIKE-BICYCLE-CUSTOM-SUSPENSION-KAMOYA-CREATIONS-JAPAN-VERY-RARE-/300669125819?pt=LH_DefaultDomain_0&hash=item460146c4bb

Rather spendy for spring.

I think I bought it for little over $20 in Tokyo, specifically at Y's Road, though with only one elastomer. The replacement elastomers ran for $3 or so. Rides nicely.
fietsbob
02-27-12, 07:13 PM
people have stiffened the standard rubber block
by putting a hose clamp [jubilee clip] around it ,
since shorter = wider, restricting the spread stiffens the compression.
kamtsa
02-27-12, 08:14 PM
people have stiffened the standard rubber block
by putting a hose clamp [jubilee clip] around it ,
since shorter = wider, restricting the spread stiffens the compression.

Brompton sells a hard suspension option

http://www.sjscycles.co.uk/brompton-suspension-block-only-hard-qsuspb-hard-prod19448/

Was too hard for my taste. Possibly with the jubilee clip you can dial in the desired hardness.
chagzuki
02-28-12, 02:45 AM
Marvellous. Let's make a bike which is too heavy even heavier.

And I've heard that Brompton Project X will be steam-powered.