SRAM Rival Front mech review
SRAM have designed the cage plates of this mech to be compatible both with compact and normal double chainsets and it will handle a difference of 16 teeth in the chainrings.
Thanks to the ramped teeth of the chainrings, the chain shifts quietly and the cage plates are stiff enough to give a fast and immediate shift from the small to the large chainring.
As with most front mechs, it is best to toe the trailing edge of the mech outward slightly during set up to prevent snatching when shifting from the small to the large chainring. We also advise that you grease the threads prior to installation because the cable can otherwise slip through the clamp.
The braze on version weighs 88g and costs the same.