Grx Rx400, Specific GRX groupset is also available in mechanical and electronic variants. I'm not using an extender but the B screw in as far as it goes for the 42T cassette and the shifting works fine. The release marks a seismic shift in the gravel bike market and positions Shimano to compete directly with SRAM’s established AXS wireless ecosystem in the fastest-growing cycling segment. Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world GRX hydraulic disc brake 10-speed STI's give you control, modulation and power with minimal effort in all riding conditions Higher brake lever axis and curved brake lever,improves grip and confidence on choppy . The numbers 400, 600, 800/820 indicate different levels (think of them like tiers of performance and price). However, in practice, that Apr 15, 2026 · Shimano has expanded its component offerings for both the GRX and CUES groupsets for 2026. After over a thousand miles and countless hours spent climbing through ecotones in Northern New Mexico and across California, he's Bottom line, the GRX RX717 lineup continues SHIMANO’s commitment to making gravel-specific performance more accessible to every rider. Though the latter is more road-focused, both sets of updates offer valuable options for riders of all kinds. John's spent time on the gravel groupset on multiple review bikes over the years, including his own Meriwether Ponderosa, where he's formed a more intimate relationship. It features a 2. So it gives us the lowest gears we can find in the new Shimano equipment, from 4. As the world's first gravel-specific groupset, GRX offers smooth shifting, reliable braking, and exceptional gravel comfort. Shimano GRX ST-RX400 2x10-speed STI Dual Control Set A central concern of Gravel riders is a reliable braking system with sufficient power reserves, the Shimano GRX 2 x 10-speed ST-RX400 STI for hydraulic disc brake is characterized by excellent deceleration performance to maintain control on steep, demanding or even surprising descents. 00 at Spa Cycles The cheapest GRX subgroup, RX400, has a rear derailleur that offers a range of 11-36t and a crankset, just like the RX600, 46-30t. Explore the GRX family of gravel components. 83. Apr 8, 2026 · Shimano has officially launched its first fully wireless GRX Di2 gravel groupset, marking the Japanese giant’s entry into the wireless gravel market that SRAM has dominated since introducing its AXS ecosystem in 2019. How wide a range has worked for you? by JohnR » 24 Jan 2026, 2:00pm I'm using the GRX 400 with 46/30 at the front and either a Sunrace 11-40 cassette or a Shimano 11-42 cassette. 18 to 0. 2 days ago · The GRX lineup now includes a comprehensive range of mechanical and electronic shifting options in both 1x12 and 2x12-speed configurations, allowing riders to tailor their drivetrains for their unique gravel riding demands. Whether you're new to gravel or helped define the category, SHIMANO GRX has an option for you. 5mm outboard chain line design to allow wider tire clearance for mixed-terrain riding. Jul 24, 2024 · Shimano GRX is a bicycle groupset specifically designed for gravel and adventure riders, bikepackers, and cyclocross racers, offering a wide array of possible builds, including 10-speed, 11-speed, and 12-speed setups. SHIMANO GRX Rear Derailleur 10-speed RD-RX400 SHIMANO GRX - Rear Derailleur - SHIMANO SHADOW RD+ - 10-speed With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. Jun 13, 2026 · When Shimano unveiled its updated 1x Di2 lineup last June, a major selling point was the cross-compatibility between its road, gravel, and mountain bike ecosystems. Apr 10, 2026 · Shimano has officially launched its 13-speed GRX Di2 gravel groupset — the company’s first fully wireless drop-bar shifting system. Jan 24, 2026 · Re: GRX RX400 rear derailleur. By blending more options with SHIMANO’s legendary Di2 electronic shifting technology, these new components deliver a worry-free experience for more gravel riders. Jun 20, 2026 · Shop the Shimano GRX RX400 2x10 Speed Full Gravel Groupset, perfect for gravel and road bikes. Produktspezifikation Produktspezifikation Technologie-Highlight Sonstige Technologien Service und Support About this item Optimized for gravel riding, the GRX RD-RX400 Rear Derailleur features a durable long cage design for enhanced gear range and reliability across mixed terrain. Includes brake set, cassette, chain, and more. 業界初のグラベル専用グループセットである、SHIMANO GRX。スムーズなシフティングや信頼性の高いブレーキング、抜群の快適性で、初心者からベテランのグラベルサイクリストまであらゆるライダーに支持されています。 Jun 15, 2020 · Has anyone tried the Shimano GRX RD-RX400 rear derailleur with an 11-42 cassette? I am currently running a 1x11 using Ultegra 6800 shifters and rear derailleur with a WolfTooth Road Link and an 11 speed 11-42 MTB cassette (w/ 42T front chainring). The SHIMANO GRX RX400 front derailleur offer lighter front shifting operation and easier setup thanks to the new link construction and integrated cable tensioner. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. RX400 i With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. Buy SHIMANO GRX RD-RX400 Rear Mech (2x10 Speed) for £57. Constructed with high-strength materials and advanced engineering, this 10-speed derailleur provides precise shifting performance and exceptional durability under demanding riding conditions. 6 days ago · When it comes to ubiquity, it's hard to miss the Shimano GRX 12-speed mechanical groupset. May 7, 2025 · Shimano’s GRX family is built specifically for gravel and adventure riding, with features tailored for rough terrain. Equipped with a Shadow RD+ The Shimano GRX RX400 2x10 groupset was invented for explorers With the GRX RX400 2x10 groupset, Shimano equips you with affordable top-level components developed specifically for the Gravel scene and in collaboration with Gravel specialists. xddcef, hg2, iiai, gi, vh3tf, nye, u9vjaj, 40pjqk8, az, nqyfytmjh,