Shimano GRX 800/600 2 x 11 Speed Hydraulic Disc Brake Groupset

Engineered specifically for the demands of gravel and adventure riding, the Shimano GRX 600/800 groupset blends the rugged durability of GRX 600 components with the lightweight performance and refined shifting of the GRX 800 series. Designed around a 1x or 2x drivetrain, it delivers smooth, reliable gear changes across rough terrain, steep climbs, and fast descents.

With ergonomics optimized for off-road control, powerful hydraulic disc brakes, and gearing tailored for mixed surfaces, the GRX 600/800 setup is perfect for riders who demand performance and versatility on every ride. Ideal for gravel racers, bikepackers, and all-road explorers alike.

• 11-speed drivetrain with wide-range gearing
  
• GRX 600 crankset for durable and efficient power transfer
  
• GRX 800 derailleurs and levers for crisp, responsive shifting
  
• Optimised ergonomics for off-road comfort and control
  
• Reliable hydraulic disc braking for confident stopping power

Frame requirements:

• Brake mount: Flat mount fork & frame mountings
  
• Bottom bracket interface: BSA Threaded or BB86/92
  
• Front derailleur mount: Braze on
  
• Freehub: Shimano HG compatible
  
• Brake type: Centre lock disc

In the Box:

• 1 x Shimano GRX ST-RX600 front brake/shifter lever with BR-RX400 flat mount caliper with 160mm adapter - 950mm hose
  
• 1 x Shimano GRX ST-RX600 rear brake/shifter lever with BR-RX400 flat mount caliper with 160mm adapter - 1700mm hose
  
• 1 x Shimano GRX 600 2x chainset - 172.5mm arm, 46/30T, 24mm Hollowtech II spindle
  
• 1 x Shimano GRX 810 11 speed rear derailleur
  
• 1 x Shimano GRX 810 2 speed front derailleur - braze on
  
• 1 x Shimano CS-HG700 105 cassette - 11/34t - HG Driver
  
• 1 x Shimano HG601 11 speed chain - silver - 116L
  
• 2 x Shimano SLX SM-RT64 rotors - 160mm - centre lock
  
• 1 x Shimano Hollowtech bottom bracket - Pressfit or BSA (select option)

Please note: different length caliper bolts may need to be purchased in order to suit some frame sizes