BMC streampost

The quill is dead. Long live the quill.

by Dave Atkinson   October 13, 2008  

BMC streampost

BMC were showing off their new Streampost seatpost system, and jolly clever it is too. Thought you'd seen the last of quills and wedge bolts? Well think again, cause BMC have used this old technology to create a new seatpost that's simple to adjust and pretty much impossible to over-tighten. All you have to do is adjust the thread on the bottom bolt so that the two lines meet, then drop the seatpost in the the tube. locking and unlocking for adjustment is just a half turn of a 6mm Allen bolt next to the seat clamp. It's a brilliantly simple solution,doing away with the need for any seat clamp on the frame, and the kind of innovation you look at and think, 'why did no-one think of this before?' It works especially well with the teardrop section that BMC use (it's in production on airfoil frames) as there's no saddle alignment needed, but could also be used with a round profile - if BMC want to license the technology, that is, as they've patented it now.

4 user comments

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Its a BMC guys, not a BH and it is a stunning idea.

But not Spanish, Swiss. All good.

posted by roadiesean [74 posts]
13th October 2008 - 10:34


After four days on my feet i think it was a case of 'show blindness'... heh. all evidence of my error will now be erased, that's the beauty of the web.

Dave Atkinson's picture

posted by Dave Atkinson [7854 posts]
13th October 2008 - 10:37


wonder if they've cleaned up the drool I left there yet? I'm thinking one for each discipline at the moment...

Even more so given the 2009 Cervelos are looking a bit shite.

posted by the-yorkshire-p... [180 posts]
13th October 2008 - 13:39

1 Like

nice bikes hey?!
I remember testing one in 2005, a Phonak model.

If it is over then it is not the end, if it is the end then it is not over yet

jay cee's picture

posted by jay cee [17 posts]
13th October 2008 - 13:40