The IRD Sub-C road front derailleur is specially to designed to work great with the sub-C (sub-compact or super compact) road double chainrings (48-32t, 46-30t, etc).
It will also work fine on 50-36t chainrings.
Works with up to 10sp set ups
The compact chainguide also makes it ideal on frames with short chainstays or bikes where you are trying to stuff a fatter tire on.
Max Capacity 16T
Top Gear Teeth: 36-50T
Chain Line: 43.5mm
Rear sprocket Max. ≤ 34T
Braze-on configuration only (clamp shown sold separately)