The lightest stiffest best climbing best descending all around fastest xc race bike ever madethe new xc is gnarly the new scalpel si is gnarliertoday39s xc courses are way more intense with serious tech sections and hairball features you39re more likely to find in dh these are the kind of courses that don39t require a bike they require a weapon a weapon that39s ultra light and ultra stiff as you39d expect but designed with a lot more capability for that extra xwe didn39