Shimano GRX 820 2x12-Speed Gravel Groupset
Shimano GRX 820 12-speed groupset is a gravel specific groupset that has gravel ergonomics, optimised gearing options, rugged reliability, and quiet and stable drivetrain.
The RX820 series is a mechanical groupset combines top-tier performance with exceptional value, featuring ergonomic designs tailored for gravel riding and versatile gearing suitable for any off-road excursion. Experience unmatched shifting precision with the ideal gear ratios for endurance rides on both paved and unpaved paths. Paired with the RX820 hydraulic disc brakes, enjoy consistent and reliable braking power.
Shimano's GRX range of groupsets has become the most popular option for gravel riding. Thanks for the wide range of options available for different types of riding as well as at different price point. There are no dedicated GRX cassettes and chains per se, these are simply borrowed from Shimano’s road and mountain bike ranges. That means no compatibility pitfalls, as long as you stay within the recommended tooth ranges and match the number of gears.
- Ideal for: top-level groupset for gravel riding, gravel racing, hilly terrain
- Groupset weight: 2,454g excluding rotors
- 2x12-speed, disc brake, gravel groupset
- Chainset asymmetric four-arm design made from aluminium alloy
- Wider gear range for long tours or unknown terrain
- Thick thin chainring tooth for chain retention without front derailleur, when riding with single chainring
- Pro-Tech bottom bracket has large, protected external stainless steel bearings attach directly to crank arms – for smooth, fluid performance and easy maintenance
- Cassette is made from 7075 aluminium, with a single block for large sprockets and five individual rings for smaller sprockets
- Super narrow lightweight 12-speed HG-EV symmetrical design chain for smooth shifts and maximum durability
- Outer plate design has been developed to reduce the chance of chain suck
- 5.62 mm chain width
- Aluminium levers, rear derailleur and front derailleur
- Ergonomic shape of shifters provides exceptional comfort
- Reach adjustment of levers ensures a precise fit with all hand sizes
- One derailleur fits all cassette options – easy to switch for gearing changes
- Flat mount brake caliper fitting
- Threaded bottom bracket inlcluded
- Rotors are not included
- Shimano GRX ST-RX820 12-speed Hydraulic Brake Levers & Shifters
- Shimano GRX BRRX820 Calipers with Hydraulic Hoses
- Shimano GRX FC-RX820 2X12-speed Chainset
- Note: Chainset is available in a range of crank lengths and sizes, please select you size
- Shimano 105 CS-HG710 12-speed Cassette
- Shimano CN-M8100/114L 12-speed Chain with quick link
- Shimano GRX RD-RX820 12-speed Rear Derailleur
- Shimano Ultegra BB-R60 Bottom Bracket
- Shimano Gear Cable Kit included
- Hydrualic brakes are supplied with hoses, pre bled, ready for installation
- Brakes are set up with left lever/rear brake and right lever/front brake
- NOTE: other bottom bracket cups are available if you require Italian thread, T47/86 or T47A please contact us
- NOTE: Shimano rotors are not included
Shimano GRX 820 12-speed groupset is a gravel specific groupset that has gravel ergonomics, optimised gearing options, rugged reliability, and quiet and stable drivetrain.
The RX820 series is a mechanical groupset combines top-tier performance with exceptional value, featuring ergonomic designs tailored for gravel riding and versatile gearing suitable for any off-road excursion. Experience unmatched shifting precision with the ideal gear ratios for endurance rides on both paved and unpaved paths. Paired with the RX820 hydraulic disc brakes, enjoy consistent and reliable braking power.
Shimano's GRX range of groupsets has become the most popular option for gravel riding. Thanks for the wide range of options available for different types of riding as well as at different price point. There are no dedicated GRX cassettes and chains per se, these are simply borrowed from Shimano’s road and mountain bike ranges. That means no compatibility pitfalls, as long as you stay within the recommended tooth ranges and match the number of gears.
- Ideal for: top-level groupset for gravel riding, gravel racing, hilly terrain
- Groupset weight: 2,454g excluding rotors
- 2x12-speed, disc brake, gravel groupset
- Chainset asymmetric four-arm design made from aluminium alloy
- Wider gear range for long tours or unknown terrain
- Thick thin chainring tooth for chain retention without front derailleur, when riding with single chainring
- Pro-Tech bottom bracket has large, protected external stainless steel bearings attach directly to crank arms – for smooth, fluid performance and easy maintenance
- Cassette is made from 7075 aluminium, with a single block for large sprockets and five individual rings for smaller sprockets
- Super narrow lightweight 12-speed HG-EV symmetrical design chain for smooth shifts and maximum durability
- Outer plate design has been developed to reduce the chance of chain suck
- 5.62 mm chain width
- Aluminium levers, rear derailleur and front derailleur
- Ergonomic shape of shifters provides exceptional comfort
- Reach adjustment of levers ensures a precise fit with all hand sizes
- One derailleur fits all cassette options – easy to switch for gearing changes
- Flat mount brake caliper fitting
- Threaded bottom bracket inlcluded
- Rotors are not included
- Shimano GRX ST-RX820 12-speed Hydraulic Brake Levers & Shifters
- Shimano GRX BRRX820 Calipers with Hydraulic Hoses
- Shimano GRX FC-RX820 2X12-speed Chainset
- Note: Chainset is available in a range of crank lengths and sizes, please select you size
- Shimano 105 CS-HG710 12-speed Cassette
- Shimano CN-M8100/114L 12-speed Chain with quick link
- Shimano GRX RD-RX820 12-speed Rear Derailleur
- Shimano Ultegra BB-R60 Bottom Bracket
- Shimano Gear Cable Kit included
- Hydrualic brakes are supplied with hoses, pre bled, ready for installation
- Brakes are set up with left lever/rear brake and right lever/front brake
- NOTE: other bottom bracket cups are available if you require Italian thread, T47/86 or T47A please contact us
- NOTE: Shimano rotors are not included
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