Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 80 BCD - 51.1mm - Round - 48T - 12 Speed - Alloy YGroup_7421784719405 adjustable steel hex pins on

adjustable steel hex pins on a 15

Improved bearing ratio for metric sizes

9 Point 8 Fall Line and Giant Contact droppers

Technical kid's mountain bike shorts with liner

Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 80 BCD - 51.1mm - Round - 48T - 12 Speed - Alloy YGroup_7421784719405 adjustable steel hex pins onThe SHIMANO FC RX820 2 balances weight savings and optimal efficiency for mixed terrain riding and racing. Double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch. Features Smaller gear steps for cadence control on mixed terrain riding Gravel optimized gear ratios preserve riding rhythm on rough surfaces Wider gear range Specifications Rear speeds 12