Article by Jeff Valliere
Shimano GRX Di2 2 x 12 RX825 Gravel Groupset & GRX WH-RX880 Carbon Wheelset Review
Complete GRX 2x12 Groupset Weight: 2,937 grams - ~$2,530
Wheelset: 1,394 grams - $1,550
Available now
Pros: Incredibly accurate “set it and forget it” shifting, super easy front shifting, dual control lever ergonomics, easy and powerful braking, shift customization, quality, Garmin (and other computer) integration, ease of setup, battery life..
Cons: perhaps a touch heavy for gram counters (though IMHO, the performance is well worth the weight), difficult to connect app with system, limited gear range (cassette options/RD max capacity).
Introduction:
This past Spring, Shimano released their 2x12 GRX Di2 groupset, with the most notable update being, well, 2x12, but also subtle improvements to the brake/shift lever ergonomics, wireless levers (in line with Dura Ace, Ultegra and 105), a revamped rear derailleur, and a gravel specific front derailleur. Prior to testing the 2x12 Di2, I was using a 2x11 mechanical GRX groupset (for a short while, as I found a great deal on a Trek Checkpoint just prior, which I purchased specifically for this project/review. The 2x11 on the Checkpoint was amazing, but I was quite excited to give the new Di2 a whirl.