New Shimano GRX RX820 & RX610 | What you need to know

• Mechanical shifting and hydraulic disc brakes only
• 1x and 2x options available
• Three names – Unbeatable, Undroppable and Unstoppable – denote three new GRX groupset options
• 1x groupset starts with a 10t cog
• 1x cassette options include 10-45t and 10-51t
• Cages on RX22-GS and SGS derailleurs are interchangeable
• Second-tier RX610 also goes 12-speed with 1x and 2x options

Shifting/Brake Lever – ST-R7170

Chainset – FC-R7100 50/34T or 52/36T

Front Derailleur – FD-R7150

Rear Derailleur – RD-R7150

Cassette: CS-R7100-12 – 11-34T, CS-HG710-12 – 11-36T

Brakes: Calipers (BR-R7170), Rotors (SM-RT64)

Chain: CN-M7100

FC-R7100 Crank

• HOLLOWTECH II Crank Set
• 2×12-speed
• Chainring combinations: 50-34T, 52-36T(available at a later date)

CS-R7100 Cassette

• 12-speed
• 11-tooth small cog for optimal efficiency
• Optimized “Sweet Spot” Gears for pedaling efficiency
• Compatible with 11-speed freehub bodies
• 11-34T

CS-HG710-12 Cassette

• 12-speed
• 11-tooth small cog for optimal efficiency
• Compatible with 11-speed freehub bodies
• 11-36T (available at a later date)

RD-R7150 Rear Derailleur

• SHIMANO SHADOW Rear Derailleur
• Integrated D-FLY connectivity
• 12-speed Di2 technology
• Compatible with 11-34 and 11-36T cassettes

FD-R7150 Front Derailleur

• 12-speed Di2 technology
• Fast, precise front shifting

RD-U6070

• 11-speed LINKGLIDE
• Maximum low sprocket: 50T
• Medium Cage

• Third-tier groupset moves from 11-speed to 12-speed
• It’s available with Di2 (electronic shifting) only
• No rim brake model
• Shifters can communicate wirelessly with the rest of the system (disc brake version only)
• Features full-carbon tubeless disc brake wheels

• 12 sprockets out back, obvs
• Wireless communication between shifters and derailleurs; derailleurs are still wired together and to battery
• 11-34 and 11-30 Hyperglide+ cassette options
• 54/40, 52/36 and 50/34 chainset options
• Faster shifting: 58% improvement out back; 45% up front compared to Dura-Ace 9150
• All the 'brains' and charge port now in the rear mech; no more junction box/ANT+ adapter
• Shift button offset increased
• Smaller remote shifter buttons compared to Dura-Ace 9150
• Redesigned brake hood shape
• New tubeless carbon-rimmed wheels with aluminium freehub bodies in 36mm, 50mm and 60mm depths
• New quieter freehub engagement mechanism with quicker take-up
• New rear hub spline pattern, but compatible with previous 11-speed Hyperglide
• Increased pad clearance in disc brakes
• Rim brakes still available in theory, but will likely be very hard to find on new bikes
• Easier hydraulic brake maintenance
• RT-MT900 rotors from XTR mountain bike groupset now standard on Dura-Ace

SHIMANO ULTEGRA Di2 Rim Brake DUAL CONTROL LEVER 2x12-speed

SHIMANO ULTEGRA Di2 Rear derailleur SHIMANO SHADOW RD 2x12-speed

SHIMANO ULTEGRA Di2 Front Derailleur 2x12-speed

SHIMANO ULTEGRA HOLLOWTECH II Crankset 2x12-speed - 52/36T - 53/39 - 54/40

cranks 165 - 170 - 172.5 - 175

SHIMANO ULTEGRA 12-speed HYPERGLIDE+ Road Cassette Sprocket - 11-30T - 11-34

SHIMANO DEORE XT 12-Speed MTB Chain

SHIMANO ULTEGRA Hydraulic Disc Brake Caliper

SHIMANO Built-In Type Di2 Battery [SD300 Type]

Electric Wire SD300 for Internal Routing