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  3. CALTRIC FL4625BS127HY

CALTRIC FL4625BS127HY Rear Brake Shoes Bike

fits model: Rt180, Street. make: Yamaha. year: 1990–1992.

Fl4625bs127hy Caltric For Yamaha Rt180 1990 1991 1992 Street Bike Rear Brake Shoes

( Brand: Caltric ), ( Manufacturer Part Number: FL4625BS127HY ), ( Part Type: Brake ), ( California Prop 65 Warning: Proposition 65 Warning For California Consumers. ), ( Manufacturer Warranty: 90 Day )

Review CALTRIC Yamaha Bike Rear Brake Shoes fits STREET RT180 1990–1992

The **Caltric FL4625BS127HY** is a premium, high-performance brake shoe designed specifically for the **Yamaha RT180** street bikes from the model years **1990, 1991, and 1992**, ensuring optimal braking efficiency and longevity for this classic cruiser. Crafted from **high-quality, heat-resistant organic friction material**, these brake shoes are engineered to deliver superior stopping power while maintaining durability under demanding riding conditions. The **127mm width** perfectly matches the rear brake caliper of the RT180, providing a precise fit that minimizes slippage and maximizes contact surface area, which is critical for consistent braking performance. Unlike generic aftermarket parts, these shoes are **OEM-compatible**, meaning they align seamlessly with the original brake system, reducing the risk of misalignment or premature wear. The **reinforced backing plate** ensures structural integrity, preventing deformation under high heat and pressure, while the **optimized friction compound** resists glazing and dust buildup, allowing for cleaner, more responsive braking over extended periods. Whether you're cruising on open highways or navigating city streets, these brake shoes offer a reliable, no-compromise solution for maintaining the RT180 s legendary stopping capability. Ideal for both restoration projects and routine maintenance, the **Caltric FL4625BS127HY** is a trusted choice for riders who demand performance without compromise.

The **Caltric FL4625BS127HY** brake shoes are designed as a direct replacement for the stock rear brake shoes on Yamaha RT180 models from 1990 to 1992. Below is a detailed breakdown of their pros and cons, followed by a conclusion and recommendation.

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### **Pros of Caltric FL4625BS127HY Brake Shoes**

1. **High-Quality Materials** Caltric uses semi-metallic friction material, which is durable and provides consistent braking performance. This material is less prone to fading under heavy use compared to organic or low-metallic alternatives.

2. **Direct Fitment** These shoes are specifically engineered as a drop-in replacement for the Yamaha RT125/RT180 rear brake system, ensuring compatibility without modification. The part number (FL4625BS127HY) aligns with the OEM brake shoe dimensions for these models.

3. **Improved Braking Performance** Semi-metallic shoes generally offer better heat resistance and stopping power than stock organic shoes, which can wear out quickly or lose effectiveness under aggressive braking.

4. **Longer Lifespan** Compared to OEM shoes, Caltric s semi-metallic composition tends to last longer, reducing the frequency of replacements and maintenance.

5. **Reliability** Caltric is a well-regarded brand in the aftermarket for brake components, known for consistent quality and performance across various applications.

6. **Easy Installation** Since they are a direct replacement, installation is straightforward for a rider with basic mechanical skills. No special tools or adjustments are typically required beyond removing the old shoes.

7. **Cost-Effective Upgrade** While not the cheapest option, these shoes offer a significant improvement over OEM parts at a relatively modest cost compared to premium brake systems.

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### **Cons of Caltric FL4625BS127HY Brake Shoes**

1. **Noise Sensitivity** Semi-metallic brake shoes can sometimes produce more noise (e.g., squeaking or grinding) compared to organic shoes, especially if the brake pads or caliper are worn unevenly. This may require occasional adjustment or the use of anti-squeal compounds.

2. **Dust and Wear** Semi-metallic shoes generate more brake dust than organic ones, which can accumulate on the wheel and require occasional cleaning to maintain optimal performance and appearance.

3. **Potential for Over-Braking** If the shoes are not properly bedded in (acclimated to the rotor), they may initially provide inconsistent braking. This requires a short break-in period where aggressive braking should be avoided.

4. **Compatibility with Other Brake Components** While these shoes fit the RT180 s rear brake system, if other components (e.g., caliper, rotor) are worn or damaged, the performance may still be suboptimal. Replacing only the shoes without addressing the rest of the system may not yield the best results.

5. **Limited Customization** Unlike some high-end brake systems, these shoes do not offer adjustable features (e.g., floating calipers or variable friction zones). They are a straightforward upgrade rather than a customizable solution.

6. **Potential for Brake Drag** If the shoes are not properly installed or if the brake lever is not fully released after use, the shoes may drag against the rotor, causing unnecessary wear and heat buildup.

7. **Environmental Factors** Extreme temperatures or moisture can affect the performance of semi-metallic shoes, though this is less of an issue than with organic materials.

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### **Conclusion**

The **Caltric FL4625BS127HY** brake shoes are a solid, cost-effective upgrade for the Yamaha RT180 (1990 1992) rear brake system. They offer improved braking performance, durability, and reliability compared to OEM parts, making them a practical choice for riders who want better stopping power without investing in a full brake overhaul. The semi-metallic composition ensures consistent performance under varied conditions, though riders should be prepared for slightly more noise and dust than with organic shoes.

The main drawbacks such as noise sensitivity and the need for proper bedding-in are minor compared to the benefits. If the rest of the brake system (caliper, rotor, and hydraulic components) is in good condition, these shoes will provide a noticeable upgrade in braking efficiency and longevity.

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### **Recommendation**

For the Yamaha RT180 (1990 1992), the **Caltric FL4625BS127HY brake shoes are highly recommended** as a direct replacement option. They strike a balance between performance, durability, and affordability, making them ideal for riders who want to enhance their braking without undertaking a major overhaul.

**Steps to Ensure Optimal Performance:**

1. **Inspect the Brake System** Before installing, check the caliper, rotor, and hydraulic lines for wear or leaks. Replace any worn components to ensure the shoes perform as intended.

2. **Proper Installation** Follow the manufacturer s instructions for installation, ensuring the shoes are correctly seated and the brake lever operates smoothly.

3. **Bedding-In Process** After installation, avoid aggressive braking for the first 50 100 miles to allow the shoes to bed in properly. This helps prevent initial inconsistencies in braking performance.

4. **Regular Maintenance** Periodically clean the rotor and shoes to remove dust and check for uneven wear. Adjust the brake lever if it feels spongy or if the shoes drag.

5. **Monitor for Noise** If squeaking or grinding occurs, apply anti-squeal compound to the shoes or check for misalignment.

If you are on a tight budget but want better brakes, these shoes are a great choice. For riders who prioritize performance and are willing to invest more, pairing these shoes with a high-quality rotor or caliper upgrade could further enhance braking. However, for most RT180 owners, the Caltric shoes alone will provide a meaningful improvement.

Details:

Compatible With Yamaha model's Rear Brake Shoes. Premium Quality Replacement Part. Outer Diameter: 124.7mm - 4.90 in, width : 27.2 1.07 in. Order Includes: 2x Rear Brake Shoes: B62-F530K-00.

Rt180 1990 - 1992.

specifications cyclebrakeshoe:

  • for models: Rt180, Street
  • for makes: Yamaha
  • for years: 1990-1992
  • brand: Caltric
  • mpn: Fl4625bs127hy
  • part type: Brake
  • california prop 65 warning: Proposition 65 Warning For California Consumers.
  • manufacturer warranty: 90 Day

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  • started: February 24, 2026
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general cyclebrakeshoe:

  • Motorcycle Scooter Parts Accessories > Brakes Brake Parts > Brake Shoes
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for models: rt180, street, for makes: yamaha, for years: 1990-1992, part type: brake, california prop 65 warning: proposition 65 warning for california consumers., manufacturer warranty: 90 day,
category: motorcycle parts > motorcycle scooter parts accessories > brakes brake parts > brake shoes, sku: 18101147668887603,
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