New Sram Red Groupset 2025 List. The brand claims the new red axs is now the lightest electronic groupset ever, tipping the scales at 2649 grams in its lightest permutation. Sram claims its 2025 red axs groupset is 154g lighter than the previous version, making it the lightest electronic groupset available today.
Three photos show new shifters, a new rear derailleur and new brakes, all of which appear lighter and more sleek Sram claims its 2025 red axs groupset is 154g lighter than the previous version, making it the lightest electronic groupset available today.