SHIMANO ESMRT64SEC Grx Centerlock Bicycle Bike Disc Brake 192790451978 SM-RT64S Rotors 160MM Set

( Brand: Shimano ), ( Manufacturer Part Number: ESMRT64SEC ), ( Part Type: Disc Bicycle Bike Rotor ), ( Color: Silver ), ( Item Diameter: 160 Mm ), ( Compatible Bike Type: Universal, Beach Bike, Cargo Bike, Chopper, City Bike, Cruiser, Cyclocross Bike, Electric Bike, Fat Bike, Fitness-/crossbike, Folding Bike, Gravel Bike, Hardtail Bike, Hybrid Bike, Lowrider Bike, Mountain Bike, Racing Bike, Recumbent Bike, Road Bike, Tandem Bike, Tandem Tricycle, Touring Bike ), ( Material: Steel, Aluminum ), ( Set Includes: Lockring, Rotor ), ( Mounting Type: Center Lock ), ( Country Of Origin: China Vc ), ( UPC: 192790451978 )

Review SHIMANO Grx Centerlock Bicycle Bike Disc Brake Rotors 160mm Set Of

The **Shimano SM-RT64S GRX Centerlock 160mm Disc Brake Rotors** represent the pinnacle of performance and precision in modern bicycle disc braking systems, meticulously engineered for serious cyclists who demand reliability, modulation, and longevity from their components. Designed exclusively for Shimano s GRX (Gravel Racing X) lineup, these rotors are a testament to Shimano s commitment to blending high-performance road and gravel capabilities into a single, versatile system. Crafted from high-grade, heat-treated steel, the **160mm diameter** rotors deliver an optimal balance between stopping power and weight savings, making them ideal for both aggressive descents and precise, controlled braking on varied terrain. The **Centerlock mounting system** ensures a secure, vibration-free attachment to the hub, eliminating the risk of wobble or misalignment that can compromise braking performance and tire tracking over time. The **dual-pin design** enhances durability by distributing stress more evenly across the rotor, reducing the likelihood of warping or deformation even under extreme conditions. Whether tackling steep climbs, rough gravel trails, or fast-paced road descents, these rotors provide consistent, progressive braking with minimal fade, thanks to Shimano s advanced friction material and optimized cooling channels that dissipate heat efficiently. Built to withstand the rigors of frequent use, the **SM-RT64S** rotors are compatible with Shimano s hydraulic disc brake systems, including the MT200 and MT400 models, ensuring seamless integration with a wide range of high-performance bikes. For riders who prioritize performance, durability, and the ability to conquer diverse riding conditions with confidence, these rotors are an indispensable upgrade, offering a harmonious blend of stopping power, responsiveness, and long-term reliability.

**Pros and Cons of buying a Shimano 192790451978 SM-RT64S GRX Centerlock 160mm Disc Brake Rotors Set**

1. **High Performance and Durability** The GRX line is designed for gravel and adventure cycling, offering robust performance in demanding conditions. These rotors are built to handle heavy braking loads, reducing fade and maintaining consistent stopping power over time.

2. **Centerlock Compatibility** The Centerlock design ensures a secure and reliable fit on compatible Shimano and third-party Centerlock hubs. This reduces the risk of rotor wobble or misalignment, which can lead to uneven braking or premature wear.

3. **160mm Size for Strong Braking** A 160mm rotor provides a larger surface area for heat dissipation and braking force compared to smaller rotors (e.g., 140mm or 160mm non-centerlock). This is ideal for riders who prioritize strong, consistent braking, especially in wet or heavy-duty conditions.

4. **Lightweight Construction** The rotors are made from high-quality materials, including aluminum, which keeps the weight relatively low while maintaining rigidity. This is beneficial for gravel and adventure bikes where weight efficiency matters.

5. **Compatibility with Shimano GRX and Other Systems** These rotors work seamlessly with Shimano s GRX hydraulic disc brake systems, as well as other high-end hydraulic brake setups (e.g., Shimano MT200, SRAM Force). They are also compatible with mechanical disc brakes, though hydraulic systems will perform better with them.

6. **Reliable Brand Reputation** Shimano is a trusted name in cycling, known for consistent quality, extensive testing, and strong aftermarket support. This reduces the risk of premature failure or compatibility issues.

7. **Heat Resistance** The rotors are designed to handle repeated high-temperature braking without warping or losing effectiveness, which is crucial for downhill sections or aggressive riding styles.

8. **Easy Installation and Maintenance** Centerlock rotors are straightforward to install and remove, and they require minimal maintenance compared to some other brake systems. Shimano provides clear instructions and tools for installation.

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1. **Higher Cost** Shimano GRX components, including these rotors, are premium-priced. For riders on a tight budget, this may be a significant investment, especially if they already have a full hydraulic brake system.

2. **Overkill for Lightweight or Recreational Use** If you primarily ride on smooth paths, light trails, or casual commutes, the extra braking power and cost of 160mm Centerlock rotors may not be necessary. Smaller rotors (e.g., 140mm) or non-centerlock options could suffice.

3. **Limited Compatibility with Non-Centerlock Hubs** If your bike uses non-Centerlock hubs (e.g., standard 6-bolt or 100mm thru-axle), these rotors will not fit without additional adapters or modifications. This could require purchasing new hubs or using aftermarket solutions, adding to the cost.

4. **Potential for Over-Braking** For riders who are new to hydraulic disc brakes or aggressive braking, the stopping power of 160mm rotors can be overwhelming, especially on slippery surfaces. Proper technique and brake pad selection (e.g., semi-metallic or organic pads) are essential to avoid skidding or loss of control.

5. **Weight Consideration for Endurance Riders** While the rotors are lightweight for their size, they are still heavier than smaller rotors. For ultra-lightweight or endurance-focused gravel bikes, every gram counts, and the extra weight may not be ideal.

6. **Maintenance Requirements** Hydraulic disc brakes require regular maintenance, including bleeding the system, checking brake fluid levels, and inspecting pads and rotors for wear. Neglecting maintenance can lead to reduced performance or brake failure.

7. **Potential for Pad Wear** High-performance rotors paired with aggressive brake pads (e.g., semi-metallic) can wear down pads faster, increasing long-term costs. Organic pads are more durable but may not provide the same stopping power in wet conditions.

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The **Shimano 192790451978 SM-RT64S GRX Centerlock 160mm disc brake rotors** are an excellent choice for riders who demand strong, reliable braking in demanding conditions such as gravel cycling, adventure touring, or downhill sections. Their Centerlock design ensures a secure fit, the 160mm size provides superior heat dissipation and stopping power, and Shimano s reputation guarantees durability. However, they come at a higher cost and may be unnecessary for lighter or recreational riding. Additionally, compatibility with non-Centerlock hubs is limited, and proper maintenance is required to ensure long-term performance.

- You ride gravel, adventure, or downhill terrain where strong braking is critical.

- Your bike uses Centerlock-compatible hubs (or you re willing to upgrade).

- You have a hydraulic disc brake system (Shimano GRX, MT200, or SRAM Force) and want premium performance.

- You prioritize durability and heat resistance over cost savings.

- You ride mostly on smooth paths or light trails, where smaller rotors (e.g., 140mm) would suffice.

- Your budget is limited, and you can opt for third-party brands (e.g., Hope, DT Swiss) with similar performance at a lower cost.

- Your hubs are non-Centerlock, and you re unwilling to upgrade.

- You prefer mechanical disc brakes and are okay with slightly reduced braking performance.

For most gravel and adventure riders investing in a high-quality setup, these rotors are a worthwhile upgrade. However, always pair them with compatible brake pads (e.g., Shimano GRX pads) and maintain your system regularly for optimal performance.

Details:

Shimano SM-RT64S GRX Centerlock Bicycle Disc Brake Rotors. I've priced both for what one goes. Diameter 160mm. Excellent condition.

Centerlock interface uses a lockring to mount the disc rotor hub. Lock rings: E External Serrated. Used one 25-mile ride only while impatiently waiting for my new wheels. Set includes external serrated locking rings for all standard bicycle thru axle diameters.

part #: esmrt64sec prices

• $37.75-$79.91

specifications ribicycl:

• brand: Shimano
• mpn: Esmrt64sec
• part type: Disc Bicycle Bike Rotor
• color: Silver
• item diameter: 160 Mm
• compatible bike type: Universal, Beach Bike, Cargo Bike, Chopper, City Bike, Cruiser, Cyclocross Bike, Electric Bike, Fat Bike, Fitness-/crossbike, Folding Bike, Gravel Bike, Hardtail Bike, Hybrid Bike, Lowrider Bike, Mountain Bike, Racing Bike, Recumbent Bike, Road Bike, Tandem Bike, Tandem Tricycle, Touring Bike
• material: Steel, Aluminum
• set includes: Lockring, Rotor
• mounting type: Center Lock
• country of origin: China Vc
• upc: 192790451978

seller ribicycl:

• city: Milton, New Hampshire
• rating: 100.0%
• # reviews: 3784

shipping ribicycl:

• class: Standard
• type: Calculated
• transit: 4-10 Days
• carrier: USPS
• cost: $0.00
• service: USPS Ground Advantage

offer ribicycl:

• quantity: 1
• options: Ship-to-home
• started: March 29, 2026
• availability: In Stock
• sold: 0

payments ribicycl:

• credit card: Discover
• other
• wallet: Apple-pay

returns ribicycl:

• policy: No Returns

general ribicycl:

• condition: Used
• Cycling > Bicycle Components Parts > Brake Rotors

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