. The Thomson Elite Layback Seatpost features forged clamps, an integrally machined head, and an elliptically extruded 7000 series aluminium body. These parts combine to produce a market leading seatpost for strength and easy adjustment Lightweight Aluminium Seatpost. This Thomson Elite Layback Seatpost is over 40% stronger on ultimate strength tests than the strongest production seatposts on the market. The Elite Layback Seatpost has double the fatigue life of any other production models tested by Thomson. The seatpost’s tube and head are integral-machined from one piece of high-strength 7000 series aluminium. As the head is not pressed or bonded in, the Elite Layback Seatpost benefits from superior strength at a minimum weight Layback Seatpost with Superior Strength. Thomson’s Elite Layback Seatpost is so strong that the clamp, head, and upper tube can withstand 350 foot-lbs of torque. The tube will start to yield and bend at the seat tube clamp at about 250 foot-lbs of torque. Under severe impact the Elite Layback Seatpost will bend only slightly, thus allowing you to stop safely or even finish the ride Features: Material: 7000 Series AluminiumLightweightThe natural ellipse bore inside tube creates an optimum strength-to-weight ratioLong 1.614″ (41mm) seat rail grip length, helping to prevent seat rail bending from impact loads (most other seatposts have grip lengths of at least 0.5″ shorter than the Thomson grip length)Infinite tilt adjustment minus 5° and plus 29°Design incorporates a bending fuse to prevent catastrophic failureAll parts are captive and can easily be attached to a seat without dis-assemblyVery low-profile clamps means no seat interference as the swivel nuts are down between the seat railsImpact absorbing clamps in the seatpost will spread and flex on impact to protect seat, rails, and riderThe seats survive heavy impact loads without bending the railsCertified to: EN 14766 2006 MTB and DIN CERTCO: 2006 MTBWeight: 201g (250mm); 228g (330mm)Buy Thompson Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.