Thats a Dahon designed for Carbon bit ...lol
but sure looks good on a Brommy as well

those Sapim CXRay spokes in there ?

thor

Do you know the OD of standard Dahon shims, Thor?

or to better put it - That Dahon designed Carbon bit is making the Brommy look better.......

BTW, that Brompton with the Carbon SP is from this set:

http://www.flickr.com/photos/door2summer69/4180293695/

The owner replaced the plastic shim with a metal shim that chagzuki linked to on the previous page. The owner does not say where he got this metal shim from though.

WOW!!!!! that is absolutely stunning :thumb: And if I recall correctly the seat post doesn't have Dahon written on it so I was being a little silly earlier on :rolleyes: Still prefer my Brooks / titanium seat post set up though....

1st I tried gel CA [super] glue on new bushing, didn't work , didn't stay put.
wouldn't suggest leave the bushing as a dry fit..
so I went to hot melt glue then played the heat gun on the frame
until the seat post fit.

the 2nd seatpost QR , just around the seatpost itself 31.8, works great.
all you have to do is take the lip off the top edge of the frame clamp band
and then flip it over. it sits on top of the frame edge and the bushing.

I finally found a simple solution. I sanded the seatpost area where the clamp wraps around it, tightened the clamp bolt a little and that seems to fix the problem. Went out and did a 3km loop purposely hitting a couple of bumps on the road and observed no slippage. Now I can focus on converting the M-bar to an S-bar.

Hi! I've been having the same problem with my Brompton. I have the old style seat clamp:

http://www.evanscycles.com/product_i...jpg?1311430148

Now I solve the slippage problem turning 1/3 of a turn the nut every time (and yes, always carrying a 13mm key). Now my question, does anybody know if the new style seat clamp has more travel?

http://www.simpsoncycles.co.uk/shopi...ras/QSCQRA.jpg

Thanx for any answer!

Having friction grease on the contact area also helps. For example

http://www.finishlineusa.com/products/fiber_grip.htm