This 520-size sprocket is made for the Altis Sigma Mid from model year 2025 onward, including the Limited Edition. Choose the tooth count that suits your setup from the available sizes.
Fits Altis Sigma Mid 2025-current, including the Limited Edition. Does not fit 2024 through mid-2025 models that use a 428 chain. Select your preferred tooth count when ordering.
!
You can still order it now — it’s expected to ship in about .