SRAM X9 10 Speed (3x 10) BB30 Triple Chainset: Truvativ X9 3x 10 speed BB30 triple chainset with a ring combo of 44x 33x 22 & featuring a hollow forged aluminium arm mated to a 4-arm forged aluminium spider. Pictured is the GXP chainset Optimized Q-factor with a 51mm chainline & a non-drive integrated BB30 30mm bottom bracket spindle for maximized stiffness BB30 steel cartridge bearing set included for 68/73mm shells (can be upgraded to Black Box ceramic bearings or PF30 Press-Fit with separate bottom brackets) X-Glide chainring combination engineered with an 11t common-denominator enabling perfectly timed/placed shift-points Hard-anodized aluminium rings with optimized X-Glide shift pins/ramps, dual-hex chainring bolts, alloy M10/M15 self-extractor crank/spindle bolt, & pedal washers Weight: 835g