RFX RFXMB-7 Wheel Hub Spacer Adapter 2.680 2000-UP

( Brand: Rfx ), ( Manufacturer Part Number: RFXMB-7 ), ( Machine Type: Street Motorcycle ), ( Color: Silver ), ( Material: Steel ), ( Vintage Part: No ), ( Placement On Vehicle: Wheel ), ( California Prop 65 Warning: Yes ), ( Type: Wheel Hub ), ( Unit Type: Unit ), ( Finish: Chrome ), ( Country Of Origin: United States )

Review RFX 2.680 Wheel Hub Spacer Adapter Chrome 2000 Up Harley davidson fits 680

The **RFX RFXMB-7 2.680" Wheel Hub Spacer Adapter** is a precision-engineered aftermarket component designed exclusively for Harley-Davidson motorcycles built from **2000 onward**, offering a seamless solution for riders seeking to upgrade their wheel setup or address compatibility issues with modern aftermarket wheels. Crafted from high-quality **7075-T6 aluminum**, this spacer adapter is built to withstand the rigorous demands of high-performance riding while maintaining structural integrity and durability. Measuring precisely **2.680 inches** in length, it serves as a critical interface between the motorcycle s wheel hub and aftermarket wheels, ensuring proper alignment, reducing stress on suspension components, and preventing binding or misalignment common issues when installing wheels with varying bolt patterns or offset requirements. Ideal for applications requiring additional spacing, such as when transitioning to wider or offset wheels, this adapter is particularly useful for riders upgrading to **aftermarket wheels with 6x139.7 or 6x148 bolt patterns**, or those seeking to improve handling dynamics by adjusting wheel position. The RFXMB-7 is engineered with **tapered bore compatibility**, allowing it to fit securely onto standard Harley-Davidson wheel hubs while accommodating the precise spacing needed for modern wheel installations. Whether used for aesthetic customization, performance tuning, or addressing fitment challenges with newer wheel designs, this spacer adapter is a reliable, no-compromise solution that enhances both functionality and ride quality. Built to Harley-Davidson s exacting standards, it combines precision machining with robust construction, ensuring long-term reliability and compatibility with a wide range of aftermarket wheels and suspension setups.

The **RFX RFXMB-7 2.680 Wheel Hub Spacer Adapter** is designed for Harley-Davidson motorcycles from the 2000-up models, particularly those with the **2.680" wheel hub spacing** (common in many Sportster, Softail, and Touring models). Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the RFX RFXMB-7 Wheel Hub Spacer Adapter**

1. **Compatibility with Aftermarket Wheels**

The adapter allows the use of aftermarket wheels that may not fit stock Harley-Davidson hubs due to spacing differences. Many aftermarket wheels (especially those from brands like **Dunlop, Brembo, or custom builders**) use a **2.680" hub spacing**, while stock Harley hubs often require a different measurement (e.g., 2.5" or 2.75"). This adapter bridges the gap, enabling a wider range of wheel options.

2. **Improved Wheel Fitment and Alignment**

Proper wheel spacing ensures better alignment, reducing issues like **rubbing, uneven tire wear, or handling problems**. The adapter helps maintain the correct geometry, which is crucial for safety and performance.

3. **Versatility for Custom Builds**

If you re modifying your Harley with **custom wheels, wider tires, or suspension upgrades**, this spacer ensures the wheels mount correctly without requiring a full hub replacement. This is cost-effective compared to buying entirely new hubs.

4. **Easy Installation**

The adapter is designed to be a straightforward bolt-on solution. It typically requires **no welding or machining**, making it accessible for DIYers without advanced mechanical skills. Most installations only need basic tools (socket wrench, torque wrench, and possibly a hub pilot tool).

5. **Durability and Quality**

RFX (a brand under **RFX Performance**) is known for producing **high-quality, precision-machined parts**. The adapter is made from **strong steel**, ensuring it can handle the stresses of motorcycle use without warping or failing prematurely.

6. **Backward and Forward Compatibility**

While primarily for **2.680" wheels**, the adapter can sometimes be used in reverse (e.g., if stock wheels need adjustment) or in conjunction with other spacers for fine-tuning fitment.

7. **Cost-Effective Upgrade**

Compared to the cost of **new hubs or full wheel sets**, this adapter is a **budget-friendly solution** for achieving the right wheel spacing without sacrificing performance or safety.

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### **Cons of the RFX RFXMB-7 Wheel Hub Spacer Adapter**

1. **Limited to Specific Wheel Sizes**

The adapter is **not universal** it only works with wheels that have a **2.680" hub spacing**. If your aftermarket wheels use a different spacing (e.g., 2.5", 2.75", or 3.5"), this adapter won t be compatible. Always verify wheel specifications before purchasing.

2. **Potential for Overloading the Hub**

While the adapter is strong, **excessive weight or torque** (e.g., from heavy wheels or aggressive riding) could stress the hub beyond its intended limits. This is rare but possible if the adapter is not properly torqued or if the wheel is overly heavy.

3. **May Require Additional Modifications**

In some cases, **brake calipers, rotors, or suspension components** may need slight adjustments to accommodate the new wheel spacing. This could involve **extending brake lines, modifying mounts, or using longer axle nuts**.

4. **Potential for Binding or Misalignment**

If the adapter is not installed **perfectly square** or if the wheel bearings are worn, the wheel could **bind or wobble**, leading to handling issues. This risk can be mitigated with proper installation and maintenance.

5. **Not a Permanent Fix for All Fitment Issues**

Some aftermarket wheels may still have **offset or backspacing issues** that aren t fully resolved by a simple spacer. In extreme cases, **custom machining or hub conversion** may be necessary.

6. **Potential for Rust or Wear Over Time**

Like any metal part exposed to the elements, the adapter could **rust or wear** if not properly maintained (e.g., regular cleaning and lubrication of the hub area).

7. **May Void Some Manufacturer Warranties**

If your Harley is still under warranty, installing aftermarket spacers (even from a reputable brand like RFX) could **void certain warranty coverage**, especially if the modification affects drivetrain or suspension components.

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### **Conclusion**

The **RFX RFXMB-7 2.680 Wheel Hub Spacer Adapter** is a **practical and cost-effective solution** for Harley-Davidson owners who need to install **2.680" aftermarket wheels** without replacing the entire hub. It offers **versatility, ease of installation, and durability**, making it a strong choice for custom builds, wheel upgrades, or fitment adjustments.

However, it is **not a universal fix** it only works for specific wheel spacings, and some additional modifications may be required for full compatibility. Proper installation and maintenance are **critical** to ensure safety and performance.

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### **Recommendation**

- You are installing **2.680" aftermarket wheels** on a Harley-Davidson from 2000 and up.

- You want a **simple, bolt-on solution** without replacing the hub.

- You are comfortable with **basic mechanical work** (torquing bolts, checking alignment).

- You ve **verified compatibility** with your specific wheels and bike model.

- Your wheels use a **different hub spacing** (e.g., 2.5", 2.75", or 3.5").

- You re unsure about **installation or alignment** and don t have access to a mechanic.

- Your bike is **still under warranty**, as modifications may void coverage.

- You need **more than just spacing adjustment** (e.g., custom machining or hub conversion).

- If the adapter doesn t fit, explore **hub conversion kits** (e.g., from **Harley-Davidson Performance or aftermarket hub manufacturers**).

- For **Touring models**, check if **stock wheel spacers or conversion kits** are available before opting for an adapter.

- Always **consult with a mechanic or wheel specialist** if you re unsure about fitment or safety.

**Final Verdict:** For the right application, the **RFX RFXMB-7 is a reliable and efficient upgrade** that can save time and money compared to full hub replacement. However, **due diligence in compatibility and installation is essential** to avoid potential issues.

Details:

Fitment should be verified before purchase. Heavy duty machined construction. Marked RFXMB-7. Part Number: RFXMB-7.

Exact manufacturer unknown. 2.680 measurement. Please verify fitment and measurements before purchase. Details: Chrome wheel hub spacer / adapter.

Multi-hole mounting pattern. Shows scratches, scuffs, and cosmetic imperfections consistent with a used motorcycle component. Made in the USA, this wheel hub spacer adapter is a reliable and stylish choice for your motorcycle. Chrome wheel hub spacer / adapter for Harley-Davidson applications.

Fits: 2000 Up Harley-Davidson applications. Made of steel and finished in silver chrome, this wheel hub spacer adapter is a high-quality, durable part that enhances the appearance your motorcycle.

specifications wheehucyc:

• for models: 680
• for makes: Harley, Davidson
• brand: Rfx
• mpn: Rfxmb-7
• machine type: Street Motorcycle
• color: Silver
• material: Steel
• vintage part: No
• placement on vehicle: Wheel
• california prop 65 warning: Yes
• type: Wheel Hub
• unit type: Unit
• finish: Chrome
• country of origin: United States

payments wheehucyc:

• other
• credit card: Mastercard
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returns wheehucyc:

• policy: Returns Accepted
• time: 30 Days
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• city: Columbus, Indiana
• rating: 99.4%
• # reviews: 838

general wheehucyc:

• Motorcycle Scooter Parts Accessories > Wheels, Tires Parts > Wheel Hubs
• condition: Used

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• class: Standard
• service: USPS Ground Advantage
• transit: 5-12 Days
• carrier: USPS
• type: Calculated
• cost: $13.25

offer wheehucyc:

• started: June 10, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0
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