Called the Sumo this post uses a single bolt with a couple of cones mounted on a cylinder at the top of the post. The point being that the single bolt holds everything together but since the cones take all the load forces the bolt experiences no shear forces and is used only in compression. What does this mean? Well, since all the force of the rider's weight is spread out over the surface of the two large cones and not through the bolt, the post should stand up to a lot more clumsy punishment than previous USE seat posts - hence the 'Sumo' name. • Weight - 194g • will only suit 7mm Rails
Rated 3 out of 5 by Anonymous not strong enough
Tightened using a torq wrench to the correct amount after fitting a new seatpost
Post is ridiculously light though
25 September 2012
Rated 1 out of 5 by Anonymous It's an outrage!
This has to be one of the worst clamp designs available. It carrys few merits apart from looking a bit novel. I've got through two now and they've bearely seen any use. They wear out even when not being ridden due to the stress the bolt induces on the design. It's outragous to think that when purchasing a 'quality' USE seatpost you need to replace the clamp on an annual basis. Don't waste your time and money -there's better products out there at the same price. Maybe they should change their strap line to 'barely survives any USE'?
09 July 2011
Rated 4 out of 5 by Anonymous Clamped
Does just what you would expect. Not the best clamp design in the world hence the need for a replacment after a few years, but a great post so well worth paying £13 for a new clamp to carry on using my post...
16 September 2009