SRAM 40 Tooth 107mm BCD x 4-Bolt 1x12-Speed X-Sync Chainring Polar Gray 28x50x12 SRAM Model ID: BB-DUB-PF30-A1

SRAM Model ID: BB-DUB-PF30-A1

and preload for low drag

and 4mm hex

LAHTI keeps your head warm on the trail and during leisure activities

SRAM 40 Tooth 107mm BCD x 4-Bolt 1x12-Speed X-Sync Chainring Polar Gray 28x50x12 SRAM Model ID: BB-DUB-PF30-A1SRAM 40 Tooth 107mm BCD x 4 Bolt 1x12 Speed X Sync Chainring Polar Gray. SRAMs X Sync Road Chainrings are designed for provide maximum control when used with AXS road cranksets. X SYNC wide tooth narrow tooth chainring technology provides maximum chain control Laser etched chainring finish is more durable X Range gearing technology gives you more range and a smoother gear progression so youre always in the right gear Can be installed with a single