"With the introduction of Shimano GRX RX820 12-speed mechanical components, SHIMANO continues its legacy of innovation as the originator of gravel-specific components. Rooted in simplicity, reliability, and adventure, the new 12-speed GRX lineup delivers more gearing options along with unrivaled ergonomics so riders get the most out each unpaved adventure, wherever that might be." - https://gravel.shimano.com

In this video, JOM of the Gravel Cyclist crew covers everything learned about the updated Shimano GRX 12-speed mechanical groupset, courtesy of a visit to Bend, Oregon, for the media camp.

Chapters:
0:00 Introduction
0:42 Shimano GRX 12-Speed Intro
0:56 Where's the GRX Di2?
1:26 GRX 12-Speed Tech
1:39 GRX 12-Speed 1x Rear Derailleur
2:13 Interchangeable 1x Derailleur Cages
2:40 12-Speed Cassettes
3:08 RX880 Wheelset Freehub Sound Test
3:15 More Cassette Tech
3:32 GRX 12-Speed 1x Crankset
4:06 GRX 12-Speed Shifter Updates
5:13 GRX 1x Left Brake Lever
5:33 Hydraulic Brake Caliper Updates
6:04 GRX 820 Series Line-Up & Gear Ratios
6:16 Shimano RX880 Carbon Gravel Wheelset
7:12 GRX 12-Speed 2x Breakdown
7:36 GRX 12-Speed 2x Rear Derailleur & Cassettes
8:04 No 11-40 2x Cassette?
8:40 Shimano GRX 2x Crankset
8:59 GRX 12-Speed 2x Front Derailleur
9:17 GRX 12-Speed 2x Right Shifter
9:43 GRX 12-Speed 2x Left Shifter
10:01 Shimano RX610 12-Speed
10:53 GRX 2x 12-Speed Weights
12:09 Wrap-Up
12:39 General Madness

Continued from Above:
"With a focus on the heart and soul of gravel cycling, Shimano mechanical GRX receives this 12-speed upgrade delivering top-tier performance without an over-the-top price. And since gravel is all about personal expression and freedom to choose how and where to ride, Shimano GRX includes three unique 12-speed mechanical drivetrain personalities to cover the full spectrum of riders and rides."

Shimano GRX 1x12 with 10-45T:
"Riders who love pushing for personal PRs or duking it out at the sharp end of a race will appreciate the gear steps of the RX820 1x12 UNBEATABLE setup with a 10-45 cassette paired with a 40- or 42-tooth chainring. Just like its 11-speed predecessor, RX820 delivers smooth, reliable shifting but now features a wider gear range and extra cog, making it easier to find the optimal cadence for maintaining your position in the pack."

Shimano GRX 1x12 with 10-51T:
"For all-day—or multi-day—adventures heavy on climbing, the new RX820 1x12 UNSTOPPABLE option features SHIMANO’s wide-range, 10-51T cassette along with a 40- or 42-tooth chainring. This setup delivers optimal climbing gears for the steepest jeep roads or high mountain ascents."

Shimano GRX 2x12 with 48/31 & 11-34T or 11-36T:
"For riders seeking the best of both worlds, the new 2x12 RX820 UNDROPPABLE drivetrain utilizes gravel optimized 48/31 front chainrings paired with an 11-34T or 11-36T cassette. This setup delivers an ultra-wide gear range for spinning a comfortable cadence when cruising the flats, smashing endless dirt road rollers, or tackling a massive backcountry climb."

Updated Ergonomics & Brakes:
"GRX’s ergonomic distinctiveness continues with its redesigned shift/brake levers. Adding 12-speed shifting without any additional lever bulk, the RX820 series shifters are designed for all-day comfort when using flared drop bars, a gravel cycling staple. By reducing pressure points and increasing surface area, your hands will feel less fatigued, and you’ll be better in control as you test your limits."

Shimano RX880 Carbon Gravel Wheels:
"Along with GRX mechanical components, Shimano is also introducing an updated carbon gravel wheel that’s purpose-built to handle the rough-and-tumble rigors of dirt road riding. The new RX880 wheelset is a full 64 grams lighter per pair than its predecessor and features the same shallow 32 mm rim height for faster acceleration and quicker climbing. The RX880 wheels are tubeless-ready and employ a progressive 25 mm inner rim width that’s suitable for tires from 32 mm to 50 mm wide."

Learn more at https://gravel.shimano.com

Links of Interest:
Shimano Website - https://bike.shimano.com
Shimano Gravel - https://gravel.shimano.com
Gravel Cyclist's Route Library - https://www.gravelcyclist.com/gravel-...

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