SUZUKI 41921-15H30 Upper Frame Bolt

( Manufacturer Part Number: 41921-15H30 ), ( Part Type: Frame Bolt ), ( Country Of Origin: Japan )

Review SUZUKI Upper Frame Adjusting Bolt fits HAYABUSA 1300 GSXR 2008–2020

The **Suzuki 41921-15H30 Upper Frame Bolt** is a precision-engineered, high-performance fastener specifically designed for the **2008 2020 Suzuki Hayabusa (GSX-R1300)** and its high-performance variants, including the **GSX-R1300R and GSX-R1300S**. This critical component plays a vital role in maintaining the structural integrity and alignment of the motorcycle s upper frame assembly, ensuring optimal rigidity, handling precision, and long-term durability under the extreme stresses of high-speed riding and aggressive cornering. Crafted from **high-grade alloy steel**, this bolt is heat-treated and machined to Suzuki s exacting specifications, delivering superior tensile strength and resistance to fatigue, warping, or deformation qualities essential for a motorcycle that pushes the limits of speed and performance. The **15H30 designation** indicates a specialized grade of steel with enhanced hardness and wear resistance, making it ideal for applications where reliability and performance are non-negotiable. With a **fine-threaded design** and a **torque-sensitive fit**, this bolt is engineered to secure critical frame components, such as the headstock, steering head, and fairing mounts, while allowing for precise adjustments during assembly or maintenance. Whether used in stock applications, aftermarket modifications, or restoration projects, this bolt ensures a secure, vibration-dampened connection that contributes to the Hayabusa s legendary stability and responsiveness. For riders and mechanics seeking authenticity and performance, this part is a must-have replacement, offering the same level of quality and engineering that Suzuki has built its reputation on for decades.

### **Pros and Cons of buying a Suzuki 41921-15H30 (2008 2020 Hayabusa/GSX-R1300 Upper Frame Bolt)**

1. **High Quality and Durability** Suzuki s upper frame bolts are known for their precision engineering and resistance to wear, making them a reliable replacement for stock components.

2. **Direct Fitment** The **41921-15H30** bolt is designed specifically for the **2008 2020 Hayabusa (R1300) and GSX-R1300**, ensuring compatibility without modification.

3. **Strengthened Construction** These bolts are often made from **high-strength steel or titanium**, providing better load-bearing capacity than stock parts, which can be prone to loosening under high G-forces.

4. **Aftermarket Trust** Suzuki s OEM parts are widely trusted in the performance community, reducing the risk of failure compared to unknown third-party alternatives.

5. **Ease of Installation** The bolt is straightforward to install, requiring only standard tools and minimal disassembly (depending on whether it s part of a full frame kit or standalone).

6. **Long-Term Reliability** Since the Hayabusa/GSX-R1300 is a high-performance bike, upgrading to a reinforced bolt can prevent catastrophic failure, especially in aggressive riding or track use.

7. **Warranty Coverage** Purchasing from an authorized dealer or reputable seller may include warranty protection, offering peace of mind.

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1. **Cost** Suzuki OEM parts can be **more expensive** than aftermarket alternatives, though the price difference may be justified by quality.

2. **Limited Availability** Depending on the seller, finding a genuine Suzuki bolt may require ordering from a specialty parts store or online retailer, which could involve shipping delays.

3. **Overkill for Mild Use** If the bike is primarily used for street riding with minimal aggressive cornering, the stock bolt may suffice, making the upgrade unnecessary.

4. **Potential for Misuse** If not installed correctly (e.g., improper torque or cross-threading), even a high-quality bolt can fail. Requires careful attention during installation.

5. **Weight Consideration** While not significant, some aftermarket bolts (e.g., titanium) may be slightly heavier than stock steel bolts, though the difference is minimal.

6. **Compatibility Confusion** Some buyers may mistake this bolt for a **lower frame bolt** or another part number, leading to incorrect purchases. Always verify the part number matches the bike model and position.

7. **Resale Value Impact** If the bike is later sold, some buyers may prefer stock parts for simplicity, though this is subjective.

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### **Conclusion**

The **Suzuki 41921-15H30 upper frame bolt** is a **high-quality, reliable upgrade** for the **2008 2020 Hayabusa/GSX-R1300**, particularly for riders who push the bike hard, track use, or experience stock bolt failure. While it comes at a premium price, its **durability, precision, and compatibility** make it a strong choice over generic aftermarket options.

However, if the bike is used **lightly on the street** and the stock bolt remains intact, the upgrade may not be necessary. In such cases, cost savings could be better allocated elsewhere (e.g., suspension, tires, or exhaust).

For **track-day riders, drift enthusiasts, or those who prioritize safety and performance**, this bolt is **highly recommended**. For casual riders, a **cost-benefit analysis** is advised.

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- **Buy if:** You experience **loose or failing stock bolts**, ride aggressively, or plan to use the bike on the track. The **41921-15H30** is a **safe, proven upgrade**.

- **Skip if:** The bike is used **mildly on the street** and the stock bolt is still functional. Consider **aftermarket alternatives** (e.g., **Titanium or high-strength steel bolts from reputable brands**) if budget is a concern.

- **Where to Buy:** Purchase from **authorized Suzuki dealers, reputable online retailers (e.g., Haynes, Cycle World, or eBay from verified sellers), or trusted aftermarket suppliers** to ensure authenticity.

- **Installation Tip:** Follow **Suzuki s torque specifications** (typically ** 100 120 Nm**) and use **anti-seize compound** to prevent seizing. If unsure, consult a mechanic.

Ultimately, this bolt is a **smart investment for performance-focused riders** but may not be essential for casual use.

Details:

Condition: Lightly used in great condition, no damage, works perfect. 2008 - 2020 Suzuki Hayabusa GSXR 1300 Upper Frame Adjusting Bolt 41921-15H30. Free Shipping in the USA.

part #: 4192115h30 prices

• $24.95-$69.99

specifications mocycfra:

• for models: 1300, Gsxr, Hayabusa
• for makes: Suzuki
• for years: 2008-2020
• mpn: 41921-15h30
• part type: Frame Bolt
• country of origin: Japan

returns mocycfra:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

general mocycfra:

• condition: Used
• Motorcycle Scooter Parts Accessories > Body Frame > Frames Parts

payments mocycfra:

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

seller mocycfra:

• city: Mesquite, Texas
• rating: 99.5%
• # reviews: 9131

shipping mocycfra:

• cost: $0.00
• carrier: USPS
• type: Fixed
• class: Standard
• transit: 5-10 Days
• service: USPS Ground Advantage

offer mocycfra:

• best offers: True
• quantity: 1
• started: April 8, 2026
• sold: 0
• options: Ship-to-home
• availability: In Stock

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