Spécialités TA Zephyr Compact 110pcd 5 Arm 9/10/11 Speed Inner Chainring, 40t, Black

TA only make their chainrings from the best 7075 T6 heat treated aluminium. The teeth are cut in the traditional manner on a lathe which produces a much better and more accurate tooth form than pressing which is used by most chainring manufacturers. Features: SPACING: 110mm PCD COMPATIBILITY: Inner Double Arm/Speed: 5-Arm 8x/9x/10x MATERIAL: 7075 T6 Note: Zephyr Inner chainrings are suitable for 11x, only when it is paired with an outer 11x chainring.