Challenging themselves to push the light weight of their SC series chainrings to the next level, Alter unleashed another unique form of design by adding carefully placed routed holes on the outer surface of the ring, creating the perfect futuristic/post-Apocalyptic aesthetic.

CNC-machined in Taiwan from stiff 7075 T6 aluminum.

Specifications

• 144mm bcd

• chain compatibility: 1/8"

• size: 49t

• colors: hard-anodized bronze, black, brushed silver, purple, red, green

• weight: 125g