Anodized, 6061 T651 aluminum. Manufactured using CNC technology, by Pilo. For SPECIALIZED Allez (2003/11), Allez Jr. (2006/09), Ariel (2009/11), BG Roulux (2010/11), Crossroads (2011), Crosstrail (2007/11), CruX alloy (2011), Dolce (2004/11), Expedition (2011), Globe Carmel, Viena (2009/10), Globe Haul, Live (2010/11), Roubaix (2004), S-Works E5 Aerotec Road (2003/04), S-Works Tarmac (2004), Secteur (2011), Sequoia (2003/09), Sirrus (2003/11), Transition (2005/11), Tricross (2006/11), Vita (2008/11) y Vita Multi-Sport (2005/06).