SHIMANO GRX RX820 2x12s MECHANICAL GROUPSET 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. It isn’t a reworked set of road components made for all-terrain riding, this groupset represents a ground up look at how cyclists want to explore their world. Shimano GRX helps you eliminate excuses, instead urging you to try that rough sidetrack or ride that little bit longer. It offers you the option to Explore Beyond. The Groupset comprises of: ST-RX820 Shifters GRX hydraulic disc brake 12-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 surfaces and descents Raised hood head prevents hand misalignment and slippage Recessed finger notch prevents upward slipping Anti-slip texture and brake lever coating gives higher braking efficiency and reduces fatigue on long rides Low profile flat mount design GRX hydraulic disc brake calliper gives you control, modulation and power with minimal effort in all riding conditions Simple set up and maintenance with easy and clean bleeding system Kit contains bled ST-RX820 STI lever, BR-RX820 flat mount front brake calliper with pads, and hose FC-RX8202 - HOLLOWTECH II Crank Set - 2x12-speed Chainring combinations: 48 x 31T or 40T CS-HG7101 Cassette - 12-speed, 11-36T This 12 Speed Cassette from Shimano delivers efficient shifting performance no matter what the terrain. This cassette incorporates Hyperglide+ technology which enhances your gear changes and its lightweight and durable composition enables faster acceleration and increased reliability. Features: Speed: 12 speed Compatible Chain: HG 12 speed Type: Hyperglide+ 11T lowest sprocket. Definitive shifting performance RD-RX820 Rear Derailleur Low profile Shadow Plus design 12-speed rear derailleur for fast and precise shifting performance Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting High tolerance cold forged aluminium link plates and body construction is extremely light and durable Compatible with 12-speed Hyperglide+ chains Wide gear ratio compatible up to 11-36T BR-RX820 Brakes More fine-tuned control and heightened braking performance Simple set up and maintenance with easy and clean bleeding system Shimano CN-HG8100 XT/Ultegra Chain with Quick Link The XT/Ultegra M8100 12 Speed Chain from Shimano is strong and durable for smooth gear shifts anywhere . Powerful and reliable, even under load, it’s optimised for use with all of Shimano’s 12-Speed drivetrains. PLEASE NOTE, All required gear inner cables and outer cables come with this groupset. Also, the hydraulic brakes are pre-bled and ready for installation. THIS GROUPSET DOES NOT CONTAIN: Bottom Bracket Rotors