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Condor Cycles£259.99Visit shop Shimano Black Tiagra St-R4020 11-Speed Hydro Shifter/Brake Set
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The Shimano Tiagra ST-R4020 set is designed for road cyclists looking to upgrade their 11-speed drivetrain to the reliable, consistent performance of hydraulic disc braking. These dual-control levers offer an ergonomic advantage through a short-reach design that improves comfort for smaller hands and provides confidence-inspiring stopping power in all weather conditions. While this set provides a significant leap in braking performance, riders should note that rotors and mounting adapters must be purchased separately, and the system is strictly limited to Shimano mineral oil and specific 11-speed derailleur compatibility.
| Model Part Number | RR4020LR |
|---|---|
| Brand | Shimano Tiagra |
No, this kit includes the levers, calipers, hoses, and cables. Rotors and mounting adapters must be purchased separately.
Absolutely not. This system is designed exclusively for use with Shimano mineral oil.
No, the ST-R4020 levers are specifically engineered for Shimano 11-speed road drivetrain components.
It is recommended to bleed the system once a year or if you notice any degradation in lever feel or stopping power.
Yes, the system includes a tuneable reach adjuster that allows you to move the levers closer to the handlebars for a better ergonomic fit.
Air may be trapped in the hydraulic line. Perform a full system bleed using the Shimano easy-bleed method.
Ensure the caliper is correctly aligned over the rotor. If the issue persists, the pistons may need to be reset or the pads may need to be cleaned.
Check the condition of the gear cables for fraying or contamination. Ensure your derailleur hanger is straight and the derailleur is properly indexed.
Installation requires professional-grade bicycle tools, including a hydraulic hose cutter and bleed kit. The ST-R4020 is exclusively compatible with Shimano 11-speed systems using the RD-R4000 or RD-U6040 rear derailleurs.
