SHIMANO PD004959 Ultegra Hydraulic Disc Brake Flat Mount Set DI2 ST-R8020 BR-R8070

( Brand: Shimano ), ( Manufacturer Part Number: PD004959 ), ( Part Type: Disc Mount ), ( Set Includes: Brake Set ), ( Compatible Bike Type: Cyclocross Bike ), ( Shifter Style: Hydraulic ), ( Number Of Speeds: 11 Speed )

Review SHIMANO Ultegra Di2 And Hydraulic Disc Brake Flat Mount Set

Shimano PD-004959 Ultegra Di2 ST-R8020 BR-R8070 Hydraulic Disc Brake Flat Mount Set

Experience unparalleled braking performance and seamless shifting efficiency with the Shimano PD-004959 Ultegra Di2 ST-R8020 BR-R8070 Hydraulic Disc Brake Flat Mount Set. This top-tier ensemble, engineered by the renowned Shimano, is designed to elevate the cycling experience for both road and gravel enthusiasts.

At the heart of this set lies the ST-R8020 Di2 shifters, meticulously crafted to provide intuitive and precise control over gear changes. The Ultegra Di2 electronic shifting system ensures quick and reliable shifts, even under the most demanding conditions. The shifters feature a sleek, ergonomic design that offers superior comfort and control, allowing cyclists to focus on their ride rather than their equipment.

Accompanying the shifters are the powerful BR-R8070 hydraulic disc brakes, known for their exceptional modulation and stopping power. The brake levers are designed with a comfortable shape and textured surface, providing a confident grip even in the wettest conditions. The brake calipers employ a two-piston design for enhanced braking power and improved heat dissipation, ensuring consistent performance throughout your ride.

The set also includes flat mount disc brake calipers, designed to provide a more aerodynamic and cleaner frame integration. The calipers are equipped with Ice Tech two-way cooling fins that help dissipate heat, reducing the risk of brake fade even during prolonged descents.

In summary, the Shimano PD-004959 Ultegra Di2 ST-R8020 BR-R8070 Hydraulic Disc Brake Flat Mount Set offers a perfect blend of power, precision, and aesthetic appeal. Whether you're a competitive racer or a leisurely weekend rider, this set is sure to enhance your cycling experience and take your performance to new heights. Upgrade your bike today with this exceptional Shimano ensemble.

Pros and Cons of Buying Shimano PD-004959 Ultegra Di2 ST-R8020 BR-R8070 Hydraulic Disc Brake Flat Mount Set

1. High-end Performance: This set features Shimano's top-of-the-line Ultegra Di2 electronic shifting and BR-R8070 hydraulic disc brakes, ensuring smooth, precise, and responsive performance.

2. Flat Mount Design: The flat mount design provides a cleaner and more aerodynamic look, as well as improved heat dissipation compared to post-mount designs.

3. Hydraulic Disc Brakes: The hydraulic brakes offer superior stopping power and modulation compared to mechanical brakes.

4. Electronic Shifting: The Di2 electronic shifting provides quick and accurate gear changes, eliminating the need for manual adjustments.

5. Durable: Shimano products are known for their durability and reliability, making this set a good investment for serious cyclists.

1. High Price: The Shimano PD-004959 set is quite expensive, which might be a deterrent for some cyclists.

2. Compatibility: Ensure that this set is compatible with your bike frame and other components. Not all frames support the flat mount design.

3. Complexity: Electronic shifting systems can be more complex to maintain and troubleshoot compared to mechanical systems.

4. Battery Life: The Di2 electronic shifting system requires a battery, which will need to be replaced periodically.

5. Weight: Although lightweight for its class, this setup may still be heavier than some mechanical groupsets.

The Shimano PD-004959 Ultegra Di2 ST-R8020 BR-R8070 Hydraulic Disc Brake Flat Mount Set offers high-end performance, precision, and superior braking power. However, it comes at a premium price and may require more maintenance than mechanical systems. If you're a serious cyclist looking for top performance and are willing to invest in a high-quality setup, this product could be an excellent choice. For casual riders or those on a tighter budget, a mechanical groupset might be a more suitable option.

Details:

Came off a small bike I can measure hoses if you like 4. Brake pads still have life front more than back 5. Overall good condition. I may have the bolts for front caliper 6.

Needs a new bleed screw as the original one stripped. Its still functional, just need a flat head screwdriver to open. Work perfect, never crashed. Only one mounting clamp 2.

part #: pd004959 prices

• $199.99-$295.90

specifications ribicycl:

• brand: Shimano
• mpn: Pd004959
• part type: Disc Mount
• set includes: Brake Set
• compatible bike type: Cyclocross Bike
• shifter style: Hydraulic
• number of speeds: 11 Speed

payments ribicycl:

• wallet: Paypal
• credit card: Mastercard
• other

returns ribicycl:

• policy: No Returns

offer ribicycl:

• quantity: 1
• best offers: True
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: March 10, 2025

shipping ribicycl:

• carrier: USPS
• type: Calculated
• cost: $12.25
• class: Expedited
• service: USPS Priority Mail
• transit: 4-10 Days

seller ribicycl:

• city: Greenwich, Connecticut
• # reviews: 442
• rating: 100.0%

general ribicycl:

• Cycling > Bicycle Components Parts > Shifters
• condition: Used

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