Gli RT79 sono tutti Centerlock mentre gli 76 sono i normali 6 fori
[url]http://cycle.shimano-eu.com/publish/content/global_cycle/en/nl/index/products/mountain/Deore_XT_9-speed/product.-code-SM-RT76.-type-bl_mountain,br_mountain.html[/URL]
[url]http://cycle.shimano-eu.com/publish/content/global_cycle/en/nl/index/products/mountain/Deore_XT_9-speed/product.-code-SM-RT76.-type-bl_mountain,br_mountain.html[/URL]