The Thomson Elite Seatpost is a durable option adding to your bike. The design of the seatpost incorporates a bending fuse to prevent catastrophic failure while the tube and head of the Thomson seatpost are integral-machined from one single piece of high strength 7000 series aluminum. The head is not pressed or bonded in. This allows for superior strength and minimum weight, allowing higher strength at low weights. The designs and materials have passed extensive life and ultimate strength tests. Easy on seats - allows seat to survive heavy impact loads without bending rails.