SRAM NX 11 Speed Rear Derailleur - 11 Speed YGroup_7033483919405 The narrow-wide tooth profile is

The narrow-wide tooth profile is necessary in single chainring setups to help prevent the chain from dropping off

Front - 60 Lumens

1 - Dressing

Screwdriver: Phillips #2

Without these precautions

SRAM NX 11 Speed Rear Derailleur - 11 Speed YGroup_7033483919405 The narrow-wide tooth profile isThe SRAM NX X HORIZON rear derailleur provides the same smooth, reliable shifting action as XX1 from the larger upper pulley offset to the 12 tooth X SYNC pulley wheels. By eliminating unwanted chain movement, X HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK technology, wheel removal and installation are easier than ever. X HORIZON design that reduces shift force, ghost shifting and