Special HOLLOWTECH II cranks for cross-country competition "2-piece hollow crank (left crank) "Compatible with all new XTR chainrings・Many chainring combinations "2x11: 34-24T, 36-26T, 38-28T "1x11: 30T, 32T, 34T, 36T・Reduced crank spacing (158 mm) "Highly efficient pedaling "Cut out for competition・HOLLOWGLIDE (38T, 36T) "Hollow-structure chainring, for greater rigidity, lightness and durability・Ultra-resistant teeth "Titanium : double plate (large plate) "Stainless steel: single plate・Weight: 602.2 g (34-24T without BP) 577.1 g (30T without BP)