Shimano GRX820 12 Speed Groupset

If your next outing includes pushing for personal PRs or duking it out at the sharp end of a race, you’ll appreciate the gear steps of the RX820 1x12 setup with a 10-45 cassette paired with a 40- or 42-tooth chainring. Just like its 11-speed predecessor, RX820 delivers smooth, reliable shifting but now features a wider gear range and extra cog, making it easier to find the optimal cadence for maintaining your position in the pack.

This setup employs a medium cage rear derailleur with integrated SHADOW RD+ chain stabilizer, providing quieter shifting, and more secure chain management in rough terrain. No need to worry about your next shift; instead, stay focused on dropping the competition.