Truvativ's BB30 is the first MTB crank specifically designed for 2X10. With oversized chainrings that are CNC machined from 6mm 7075 aluminum blanks-2mm thicker than any other competitor. Extreme stiffness is delivered by the increased Bolt Circle Diameter (BCD) and a two-piece insert-molded carbon composite construction. The XX Crank geometry provides a narrow 156mm Q factor, efficient chainline and beveled crank arms to maximize clearance.
1-piece carbon fiber arm/spider design, beveled for maximized clearance with insert-molded aluminum pedal and spindle-interface reinforcements
Narrow and efficient 156mm Q-factor with a 49.5mm chainline and a drive-side integrated GXP (24mm) or non-drive integrated BB30 (30mm) bottom bracket spindle for maximized stiffness
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