Originally Posted by The Fixer
EDIT: Wait a minute.....upon visiting that site (first photo), that adapter is described as a monostay adapter, not for the seatpost. Wonder if it'll still work...
Yeah, it looks like the clamp diameter may be too large for a seat post, but the Blackburn unit (second photo) should work fine with the smaller diameter. If not, we should be able to use a spacer (slit rubber hose, for example).
-murray