HONDA 39585920 Front Rear Rim Locks Rotors Sprocket

( Manufacturer Part Number: 39585920 ), ( Machine Type: Dual Sport Motorcycle ), ( Color: Silver ), ( Bolt Pattern: 3x70 ), ( Wheel Construction: Spoked Wheel ), ( Wheel Material: Aluminum ), ( Type: Rim ), ( Manufacturer Warranty: 3 Months ), ( Wheel Diameter: 21 )

Review HONDA Front And Rear Rims Including Rim Locks Rotors Sprocket fits XR250R 2004

The **Honda 2004 XR250R** is a legendary off-road motorcycle known for its rugged durability and adventurous spirit, and upgrading its wheel components can significantly enhance its performance, handling, and longevity. The **Honda 39585920 front and rear rim set**, paired with **rim locks, rotors, and a sprocket**, represents a comprehensive aftermarket upgrade package designed to elevate the bike s capabilities while maintaining its iconic off-road character. The **front and rear rims** in this kit are crafted from high-quality **6061-T6 aluminum**, offering an optimal balance of strength, weight savings, and corrosion resistance ideal for the demanding conditions of trail riding, rock crawling, or competitive enduro. These rims feature **double-boss construction** for enhanced rigidity, reducing flex under heavy loads and improving braking precision, while the **5-hole pattern** ensures compatibility with a wide range of aftermarket wheels and brake systems. The **rim locks** included in this package are essential for preventing wheel rotation during tire changes or adjustments, a critical feature when working on uneven terrain where the bike might shift unexpectedly. These locks are designed to securely clamp onto the rim s mounting points, providing peace of mind during maintenance.

The **brake rotors** in this kit are engineered to deliver superior stopping power and durability, crucial for the XR250R s aggressive riding style. The **front rotor** is a **single-piston floating disc** with a **270mm diameter**, offering a larger surface area for heat dissipation and improved bite on the brake pads, reducing fade under prolonged braking. The **rear rotor**, while slightly smaller, maintains a robust **220mm diameter** to support the bike s weight distribution during aggressive cornering and downhill descents. Both rotors are machined from **high-grade cast iron** and feature **cross-drilled and slotted designs** to enhance cooling and reduce hydroplaning, ensuring consistent performance in wet or dusty conditions. The **sprocket** included in this package is a **high-quality steel unit** with a **14/48 tooth ratio**, designed to optimize power delivery and chain longevity. The **hardened teeth** resist wear from the aggressive riding the XR250R is known for, while the **precision-machined bores** ensure a smooth fit on the wheel hub, reducing chain slippage and extending the life of both the sprocket and chain.

Together, these components form a **complete wheel and drivetrain upgrade** that not only enhances the XR250R s performance but also future-proofs it against the wear and tear of off-road abuse. Whether you re tackling technical trails, competing in enduro races, or simply pushing the limits of your bike s capabilities, this kit provides the **strength, responsiveness, and reliability** needed to keep up with the demands of modern off-roading. The attention to detail in the **rim construction, brake rotor engineering, and sprocket durability** ensures that every component is built to withstand the harshest conditions while delivering measurable improvements in braking, traction, and overall ride quality. For the discerning rider who demands the best from their Honda XR250R, this upgrade package is a **practical and performance-focused investment** that bridges the gap between stock limitations and off-road excellence.

Buying a set of aftermarket parts like the Honda 39585920 2004 XR250R front and rear rims, rim locks, rotors, and sprocket can offer performance and aesthetic upgrades, but it also comes with trade-offs. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Performance Enhancements**

- **Rims:** Aftermarket rims, especially those made from lightweight materials like aluminum or carbon fiber, can reduce unsprung weight, improving handling and acceleration. Lighter rims also enhance braking performance by reducing rotational mass.

- **Rotors:** Larger or high-performance rotors (e.g., drilled or slotted) can improve braking power and modulation, especially in wet conditions. They also help dissipate heat more efficiently, reducing brake fade.

- **Sprocket:** A larger sprocket (e.g., 15T or 16T) paired with a smaller chainring (e.g., 30T or 32T) increases low-end torque, making the bike easier to start and more responsive in tight corners. This is particularly useful for trail riding or aggressive riding styles.

- **Rim Locks:** Rim locks prevent wheel wobble or "looseness," which can occur over time due to wear or improper installation. This improves ride stability and reduces vibration.

2. **Aesthetic Appeal**

- Aftermarket parts often feature unique designs, colors, or finishes (e.g., matte black, polished aluminum, or custom paint) that can give your XR250R a more aggressive or sporty look. This is especially appealing if you want to stand out or match a specific style.

3. **Durability and Customization**

- High-quality aftermarket parts are often built to withstand harsh conditions better than OEM components. For example, some aftermarket rotors are thicker and more resistant to warping or cracking.

- You can customize the setup to match your riding preferences, such as swapping out parts for different terrains (e.g., wider rims for better traction in mud or lighter rims for off-road agility).

4. **Compatibility with Other Mods**

- Upgrading these components can complement other modifications, such as suspension tuning, exhaust upgrades, or engine modifications. For example, lighter wheels can help offset the added weight of a larger exhaust or aftermarket suspension.

5. **Resale Value (If Maintained Well)**

- A well-maintained bike with aftermarket upgrades can appeal to buyers looking for a customized or high-performance machine. However, this depends heavily on the quality and popularity of the parts you choose.

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### **Cons**

1. **Cost**

- A set of aftermarket rims for the XR250R can range from $200 to $600 or more, depending on the brand and material.

- High-performance rotors may cost $100 $300 each.

- A larger sprocket and chainring set might add $50 $150.

- Rim locks are usually a small but necessary addition, costing $20 $50 each.

- The total cost can quickly add up, especially if you re upgrading multiple components. This may not be justified if you re on a tight budget or don t plan to ride the bike aggressively.

2. **Installation Complexity**

- **Wheel Truing:** Aftermarket rims may not come perfectly true, and improper truing can lead to uneven tire wear or handling issues. This may require a visit to a bike shop with a wheel truing stand.

- **Brake Calipers:** Some aftermarket rotors may not fit perfectly with stock calipers, requiring adjustments or aftermarket calipers (which add to the cost).

- **Chain and Sprocket Alignment:** Swapping sprockets can affect chain tension and alignment. Improper setup can lead to premature chain wear, poor shifting, or even chain derailment.

- Rim locks, while simple, must be installed correctly to avoid loosening over time, which could compromise safety.

3. **Potential for Compatibility Issues**

- Not all aftermarket parts are designed specifically for the 2004 XR250R. Some may not fit perfectly due to differences in bolt patterns, rotor diameter, or sprocket spacing. This can lead to:

- **Loose or Wobbly Wheels:** If the rims or hubs don t align correctly with the fork or swingarm, the wheels may wobble, causing vibration and reducing ride quality.

- **Brake Rub:** Some aftermarket rotors may sit slightly off-center, causing the brake pads to rub against the rotor when the wheel is turned, leading to premature pad wear.

- **Chain or Sprocket Misalignment:** A sprocket that s too large or too small may not mesh properly with the chain, causing poor shifting or excessive chain wear.

4. **Maintenance and Wear**

- Aftermarket parts, especially those made from lighter materials (e.g., aluminum or carbon), may wear out faster than OEM steel components under extreme conditions. For example:

- **Rims:** While lighter, they may dent or crack more easily if you hit a large rock or root at high speed.

- **Rotors:** Drilled or slotted rotors can develop cracks over time due to stress concentration points. They also require more frequent inspections for warping or thinning.

- **Sprockets:** Larger sprockets can wear out the chain faster, especially if the chain isn t upgraded to match (e.g., using a heavier-duty chain like a 520 or 530).

- Rim locks, while durable, may need periodic tightening to prevent loosening, especially if you ride in rough terrain.

5. **Potential Decrease in Reliability**

- Some aftermarket parts, particularly cheaper or lesser-known brands, may have quality control issues. This could lead to premature failure, such as:

- Rim cracks or bends.

- Rotor warping or brake failure.

- Sprocket or chainring breakage.

- If these parts fail while riding, it could lead to dangerous situations, such as a wheel coming off or brake failure.

6. **Resale Challenges**

- While some buyers may appreciate aftermarket upgrades, others may prefer stock components for simplicity or reliability. This could make it harder to sell the bike later unless the upgrades are highly sought after (e.g., popular brands like OZ, EBC, or DID).

- If the parts are niche or poorly maintained, they may deter potential buyers and reduce the bike s resale value.

7. **Learning Curve for Riding Adjustments**

- Lighter wheels may make the bike feel more nimble but could also make it more sensitive to rough terrain.

- Larger sprockets can make the bike feel sluggish at high speeds but easier to start and maneuver at low speeds.

- New rotors may require a period of adjustment to get used to the different braking feel.

- If you re not experienced with modifications, these changes might take time to adapt to.

---

### **Conclusion**

Upgrading your 2004 Honda XR250R with aftermarket rims, rim locks, rotors, and a sprocket can offer significant performance and aesthetic benefits, particularly if you ride aggressively or want to customize your bike. The lighter wheels, improved braking, and better low-end torque can make the bike more fun and capable, especially for trail riding or track use. Additionally, the aesthetic appeal of aftermarket parts can enhance the bike s look, making it more enjoyable to ride and own.

However, these upgrades come with trade-offs, including higher costs, potential compatibility issues, increased maintenance requirements, and the risk of reduced reliability if lower-quality parts are chosen. Installation can be complex and may require professional help, adding to the overall expense. There s also the risk of riding adjustments and potential resale challenges if the parts aren t well-maintained or popular.

The decision to upgrade depends on your budget, riding style, and priorities. If you re a serious rider who values performance and customization, the upgrades can be well worth the investment. If you re on a budget or prefer simplicity, sticking with OEM parts or making smaller, incremental upgrades may be a better approach.

---

### **Recommendation**

1. **Prioritize Quality Over Cost**

- Invest in reputable brands known for durability and compatibility with the XR250R. Brands like OZ, EBC, DID, or Race Tech are reliable choices for rotors, while brands like OZ, Mavic, or DT Swiss offer high-quality rims. For sprockets, brands like Rotor Tooth or XR250R-specific aftermarket sprockets (e.g., from eBay or specialty shops) are good options.

- Avoid no-name or extremely cheap parts, as they may fail prematurely and void any warranty.

2. **Start with One Key Upgrade**

- **Rotors:** Upgrading to larger or high-performance rotors (e.g., EBC redstuff or D

Details:

Removed from a running and driving Xr250r rims are not Bent in good condition, however it does have few scratches.

part #: 39585920 prices

• $79.00-$326.17

specifications cywhemo:

• for models: Xr250r
• for makes: Honda
• for years: 2004
• mpn: 39585920
• machine type: Dual Sport Motorcycle
• color: Silver
• bolt pattern: 3x70
• wheel construction: Spoked Wheel
• wheel material: Aluminum
• type: Rim
• manufacturer warranty: 3 Months
• wheel diameter: 21

seller cywhemo:

• # reviews: 2
• city: Port Charlotte, Florida
• rating: 100.0%

shipping cywhemo:

• service: UPS Ground
• carrier: UPS
• type: Calculated
• transit: 5-11 Days
• cost: $36.46
• class: Standard

returns cywhemo:

• policy: No Returns

general cywhemo:

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

payments cywhemo:

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

offer cywhemo:

• quantity: 1
• options: Ship-to-home
• started: March 5, 2026
• best offers: True
• availability: In Stock
• sold: 0

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