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umop3pisdn-
Do Fibrelyte do ramps and pins?
Yup:
Fibre-lyte chainrings for use as an outer chainring on a double or triple are machined with release teeth and alloy lift pins are added. These are designed to aid shifting and prevent damage to the chainring during shifting. If the chainrings are ordered as a double set they will be machined as a matched pair to give the best shifting possible. Fibre-lyte chainrings are also compatible with Shimano's Di2 system.Although seller claims this is a "Time" ring, not FL...
Scilly.Suffolk
What's going on with the teeth?
The mix of low and full height teeth look like they're for shifting, but no ramps & pins.