Wheels Manufacturing Direct Mount Chainring - 30t SRAM 3-Bolt Direct Mount 3mm Offset T-Type Chain Compatible Blue CheckoutTitle=Shimano Dura Ace CS-R9100 Cassette - 11 Speed Material: 420 Denier Nylon / Weight-653

Wheels Manufacturing Direct Mount Chainring 30t SRAM 3 Bolt Direct Mount 3mm Offset T Type Chain Compatible Blue CheckoutTitle=Shimano Dura Ace CS R9100 Cassette 11 Speed Material: 420 Denier Nylon Weight 653 Material: 420 Denier Nylon PVC Sponge Sealed bearings Front Axle 12mm Thru x 100mm Color Black Red Bearing Type Sealed Cartridge Defined Color Black Spoke Interface J Bend Hub Drilling 24 Hub Brake Compatibility Center Lock Disc Perfect for riders who demand reliability and performance from their drivetrain these chainrings are ready for every adventure from long trail days to all out race efforts Narrow Wide tooth profile is compatible with 9 10 11 and 12 speed chains including 12 speed T Type systems (NOT Compatible with Hyperglide+ 12 speed or Campagnolo 13 Speed chains)