I received these as part of a bike I purchased and they just won't work for me...
Up for sale are two Mcfk carbon seat posts. Mcfk is a German company that produces the highest quality lightweight carbon components. All items are handmade in Germany. The quality is top notch and so are the prices.
Mcfk seatposts are manufactured in Germany, and feature a two-year warranty against defects in materials and manufacturing.
Mcfk's setback seatposts have been weight optimized by limiting the clamping range of the seatpost collar. The following table expresses acceptable seatpost extensions, measured from the center of the saddle's rails to the point where the seatpost exits the frame. Improper installation of this seatpost will void the warranty and can cause seatpost failure and/or serious injury. Please feel free to contact us for compatibility questions.
We highly recommend the use of a carbon assembly compound (such as Tacx Dynamic Assembly Paste) on the seattube/seatpost interface to limit the clamping torque required. A torque wrench is highly recommended as well. Mcfk recommends a maximum seat collar torque of 6 Nm, and a maximum rail clamp torque of 4 Nm.
The first for sale is a brand new 27.2 post. I believe this size is what they would call a 250mm although when I measure it goes to 270mm from bottom to where the rails go. My scale shows 95 grams! The weight limit is on the post showing 90kg (198 pounds or 14.1 stone for those in Scotland). This post is brand new in mint condition.
For Sale at Fair Wheel Bike: http://fairwheelbikes.com/mcfk-carbo...st-p-3487.html
New Price: $350
This price: $250
Also a 27.2 but with setback. I believe this is a 300mm size. Scale on this shows 104 grams. This post is used but is very good condition. The shiny carbon is a bit duller from insertion but no chips at all. Again, very good condition. Weight limit is 100kg (220 pounds(!) or 15.75 stone).
For Sale at Fair Wheel Bike: http://fairwheelbikes.com/mcfk-carbo...st-p-4909.html
New Price: $490
This price: $275
Mcfk's seatposts are among the very lightest available and feature solid, German-engineered construction and impeccable finish work. For riders that require a rearward saddle position, this seatpost satisfies those biomechanical requirements while adding a weight penalty of only 10% (compared to Mcfk's zero setback seatpost). Unlike other seatposts of similar design, Mcfk's lower rail clamps offer a much greater contact area, allowing greater security and support for delicate carbon rails. Cosmetic options include 3k weave and unidirectional, both in high gloss finish.
More photos: http://www.flickr.com/photos/7583678...7640952928873/