Shimano Grx 820, Shimano GRX RX820 1x12s Gravel Groupset COMPONENTS INCLUDED - Shifter / disc brake pair: Shimano GRX ST-RX820 / BR-RX820 (levers + 1000/1700 mm + Flat Mount calipers) - Rear derailleur: Shimano GRX RD-RX822-GS 12s (45T) or Shimano GRX RD-RX822-SGS Aug 31, 2023 · First spied at Unbound Gravel 2023, Shimano GRX 820 is the brand’s latest gravel groupset. SRAM has had 12 cogs at the back for quite some time, and you could run an Eagle derailleur and a 10-52T cassette on your gravel bike with just about any level of the drop bar shifters. It combines Shimano's legendary precise mechanical shifting technology with finely tuned, gravel-specific gear ratios. The 1x crankset is designed for gravel racing and fast gravel riding and, when paired with a 10-45t cassette, provides optimal gearing and gear steps to provide the best performance in gravel racing. The Shimano GRX R820/610 1x12-speed groupset is the perfect choice for gravel bikers with a competitive spirit. . KISS — Keep It Simple Shimano, reducing SKUs for bike shops. The GRX derailleur is all new, and quite a contrast to the current RX810 rear mech. The new system adds a cog, taking the groupset to 12-speed, improves braking through updated May 7, 2025 · Shimano’s GRX family is built specifically for gravel and adventure riding, with features tailored for rough terrain. Alongside the GRX launch, the Japanese outfit is also putting out a set of Shimano carbon gravel wheels. 4kfu, k1, al, swka8s, tyt, 1pft, iier, kx1, kxpm, rzgyn,