Your complete guide to Shimano's GRX gravel groupset | road.cc
Shimano GRX vs 105: How Do They Compare? - Sportive Cyclist
Shimano GRX 400 vs 105: Which Groupset Is Right for You? - Eco Proma Insight
Shimano 105 ST-R7020/R7025 GRX RX400 STI Lever Name Plate w/Screw Right Hand | eBay
Swapping GRX crankset into a 105 road groupset for lower gearing, would the increase in chainline (43.5mm → 47mm) and Q-factor (146mm → 151mm) matter? : r/bikewrench