duotone power xt 2 0 sdm alu verlangerung copyWe present the Duotone Power. XT 2. 0 SDM Alu Extension. An Impressive (R)Evolution: The POWER. XT 2. 0 can do much more and does everything better than its predecessor. Apart from the basic concept, the POWER. XT 2. 0 has almost nothing in common with its predecessor. From the extremely robust ratchet mechanism and lever to the simplified release process, the high strength Lyros Dyneema rope, and the option to retrofit the shock absorber function,