Shimano GRX ST-RX610 2x12-speed STI Dual Control + BR-RX400 Disc Brake Set
Greater mixed-terrain control
Gravel inspired lever and bracket ergonomics
Anti-slip brake lever
Same light shifting operation as top tier road systems
Never hesitate to tackle rough surfaces
Excellent heat dissipation
ICE TECHNOLOGIES
Flat mount
Simple set up and maintenance
Convenient tool access
Easy hose joint system (J-kit)
Simple wheel replacement
Easy and clean bleeding system
ONE WAY BLEEDING
Product features
Use: Gravel, Cyclocross
Group: GRX
Model: ST-RX610
Type: Dual-Control (STI)
Handlebar mounting: left/right
Gear front: 2-speed
Gear rear: 12-speed
Optical gear display: No
Lever reach adjust: Yes, with tool
Handlebar diameter: 23.8mm/24.2mm
Brake-type: Hydraulic Disc Brake
Brake caliper: BR-RX400
 
Shimano GRX RD-RX820 2x12-speed Rear Derailleur
Product features
Use: Gravel, Cyclocross
Group: GRX
Model: RD-RX820
Mount: Direct attachment (Conventional)
Technology: Shadow RD+
Gear front: 2-speed
Gear rear: 12-speed
Compatible Chain: 12-speed HG
Max. teeth large sprocket: 36T
Min. teeth large sprocket: 34T
Max. teeth small sprocket: 11T
Min. teeth small sprocket: 11T
Max. Front Difference: 17T
Total Capacity: 42T
1.Shimano GRX ST-RX610+BR-RX400 2x12-speed Disc Brake Set 
2.Shimano GRX FC-RX820 2x12-speed Crank  
3.Shimano GRX RD-RX820 2x12-speed Rear Derailleur   
4.Shimano 105 CS-R7100 12-speed Cassette 36T
5.Shimano SLX CN-M7100 12-speed Chain  
6.BB-BBR60 Bottom Bracket(English thread)/BB72-41B  
7.Shimano GRX RD-RX810 2x12-speed Front derailleur

Note:
100% authentic, without the original box 

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