This chainring is designed to be used on the
Shimano Alfine S501 crankset and both the
inner and
outer chainring guards. This chainring has special holes drilled in it to accept the inner chainring guard. Because the
Alfine uses a 1x setup for the front chainring there is no need for ramps or shift pins.
- For Alfine S501 cranks
- Includes holes for inner chainring guard
- Does not include hardware