Alter SC chainring
USA orders totaling $100 or more receive free shipping.
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Alter's uniquely original SC series takes it's design inspiration from steel girder and beam structural construction, providing both a visual work of art and a rigid platform for your drivetrain.
CNC-machined in Taiwan from stiff 7075 T6 aluminum.
• 144mm bcd
• 1/2 x 1/8"
• sizes: 47 or 49t
• colors: silver, black