ALUGEAR 2x Aero Chainring for Shimano GRX - Black Groupe create 5 mapped zones that

create 5 mapped zones that work individually

Tire type: Tubeless

Seatpost bag for bikepacking15L capacityWaterproof constructionLarge single compartment designBungee cord storage for additional itemsAnti-swing constructionReflective trim to improve visibilityMounting points for lights or other accessories

For modern disc brake bicycles

ALUGEAR 2x Aero Chainring for Shimano GRX - Black Groupe create 5 mapped zones thatChainring set 2 speed ROUND AERO for Shimano GRX FC RX820 2 (12 speed), FC RX810 2 (11 speed) Specifications Intended to use: 2X 12 speed and 2X 11 speed for Gravel bike Optimum chainring combinations: 46 32; 48 34 Mounting position: outside 46T; 48T; inside 32T; 34T Bolt circle diameter: 110 mm Shimano Asymmetric (GRX versions outer chainrings), 80 mm Shimano Asymmetric (GRX versions inner chainrings) Attachment: 4 arm spider Material: Aluminum 7075