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Cartridge BB - solid axle - steel cups - axle L. 111 mm for double crankset - axle L. 111 mm for triple crankset with seat tube Ř 28.6 mm. For the 2006 range the Mirage™ groupset sees the introduction of a dedicated bottom bracket that provides tolerances and geometries of the bottom-bracket spindle that have been optimized to obtain coupling with the cranks and an ideal chain line.
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