• 172.5mm length
• 130mm BCD
• 11 speed
• X-Glide: refined through the Truvativ crank engineers, they precisely paired differed sized chainrings and redesigned where and how the chain engages with the rings. By aligning the chainring pickup rivets to the chain pivot pin – rather than the middle of the chain link, your shift opportunities double.
• The front derailleur cage rotates to maintain a consistent angular relationship with the chain. Yaw technology eliminates the need for shifter trim. As a result, shifts feel more direct, more precise, and combined with the new Red crankset and chainrings, delivers an unmatched performance advantage in front shifting.
• GXP bottom bracket required, not included