fits model: 250, 2x4. make: Yamaha. year: 1990.

( Manufacturer Part Number: 4UH-21611-90-00 ), ( Type: Atv ), ( California Prop 65 Warning: Www.p65warnings.ca.gov ), ( Superseded Part Numbers: 3gh-21611-11-00 )
The **Yamaha 4UH-21611-90-00 Moto 250 90 Fender Rear** and its complementary **3GH-21611-11-00** component represent a premium, high-performance upgrade package designed for Yamaha s iconic 250cc and 90cc trail and dual-sport motorcycles, particularly those built on the legendary Moto series chassis. This meticulously engineered rear fender system is crafted to enhance both the aesthetic appeal and functional efficiency of your bike, ensuring a seamless blend of style and utility. The **4UH-21611-90-00 Moto 250 90 Fender Rear** is constructed from durable, lightweight materials, including high-quality aluminum or reinforced polymer composites, depending on the specific model variant, which not only reduces overall weight but also improves rigidity and resistance to corrosion. Its sleek, aerodynamic design is tailored to complement the aggressive yet refined lines of the Yamaha Moto series, offering a modern, sporty look that stands out on the trail or the road. The fender s contours are thoughtfully engineered to minimize wind resistance while maximizing protection for the rear wheel and drivetrain, ensuring optimal performance during high-speed rides or aggressive off-road maneuvers.
The **3GH-21611-11-00** component, often paired with the rear fender, serves as a specialized mounting bracket or reinforcement system, designed to secure the fender in place with precision and durability. This bracket is typically crafted from robust, heat-treated steel or high-grade aluminum, featuring precision-machined surfaces to ensure a snug, vibration-free fit. Its design incorporates strategic mounting points that align perfectly with the bike s existing frame and fender attachment locations, allowing for easy installation without compromising the integrity of the motorcycle s structure. Together, these components form a cohesive upgrade package that not only elevates the bike s visual appeal but also enhances its practicality, offering superior protection against mud, debris, and the elements while maintaining the Moto series signature balance of agility and endurance.
For riders who demand both performance and polish, this Yamaha fender and bracket combination is an ideal choice, blending cutting-edge engineering with timeless craftsmanship. Whether you re tackling rugged terrain or cruising on paved roads, the **4UH-21611-90-00 Moto 250 90 Fender Rear** and **3GH-21611-11-00** bracket ensure that your Yamaha remains both functional and striking, ready to meet the challenges of any adventure with confidence.
### Yamaha 4UH-21611-90-00 (Moto 250 90 Fender Rear) and 3GH-21611-11-00 (Rear Shock Absorber) Pros and Cons
#### **Overview**
The **Yamaha 4UH-21611-90-00** is a **rear fender** designed for the **Yamaha MT-250 90** (and some other models). The **3GH-21611-11-00** is the **rear shock absorber** for the same bike. Both parts are essential for functionality, aesthetics, and ride comfort. Below is a detailed breakdown of their pros and cons.
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### **Yamaha 4UH-21611-90-00 (Rear Fender)**
#### **Pros:**1. **OEM Quality** Yamaha fenders are built to match the bike s original design, ensuring a seamless fit and professional appearance.
2. **Durability** Made from high-quality materials, they are resistant to rust and wear, especially if treated with protective coatings.
3. **Easy Installation** Designed to fit the MT-250 90 without modifications, making replacement straightforward for most riders.
4. **Aesthetic Appeal** Maintains the bike s sporty look, complementing the aggressive styling of the MT-250 90.
5. **Protection** Shields the rear wheel and suspension from dirt, debris, and minor impacts, reducing long-term wear.
6. **Compatibility with Aftermarket Parts** Works well with other OEM or aftermarket components, such as exhausts or seat modifications.
7. **Warranty Coverage** If purchased new or from an authorized dealer, it may come with Yamaha s warranty, offering peace of mind.
#### **Cons:**1. **Limited Customization** Unlike aftermarket fenders, this is a stock replacement with no design variations (e.g., no splitters, aggressive angles, or custom colors).
2. **Potential Fit Issues** If the bike has been heavily modified (e.g., lowered suspension, aftermarket exhaust), the fender may not align perfectly, requiring adjustments.
3. **Price** As an OEM part, it may be more expensive than generic aftermarket alternatives, though the quality justifies the cost for some riders.
4. **Weight** Adds slight extra weight to the rear, though the impact is minimal compared to other modifications.
5. **Visibility Concerns** Some riders prefer aftermarket fenders with cutouts or splitters for better airflow and reduced drag, which this OEM part does not offer.
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### **Yamaha 3GH-21611-11-00 (Rear Shock Absorber)**
#### **Pros:**1. **OEM Performance** Yamaha s shock absorber is tuned for the MT-250 90 s suspension setup, providing a balanced ride quality out of the box.
2. **Reliability** Built to Yamaha s standards, it offers consistent performance and longevity with proper maintenance (e.g., regular oil changes, valve adjustments).
3. **Adjustability (If Equipped)** Some Yamaha shocks (depending on model year) include **preload adjustment** or **rebound damping**, allowing minor tuning for rider preference or terrain.
4. **Durability** High-quality materials and construction reduce the risk of leaks or internal failures, especially if serviced regularly.
5. **Compatibility** Fits the MT-250 90 without modifications, ensuring proper function with the bike s suspension system.
6. **Warranty Support** Purchasing from an authorized dealer may include warranty coverage, protecting against defects.
7. **Safety** A properly functioning shock ensures better handling, cornering, and stability, reducing the risk of accidents.
#### **Cons:**1. **Limited Customization** Unlike aftermarket shocks (e.g., hlins, YSS, or WP), this is a stock replacement with no advanced tuning options (e.g., progressive valving, electronic damping).
2. **Stiffness for Some Riders** The MT-250 90 s stock suspension is tuned for sporty, aggressive riding. Some riders (especially those preferring comfort or off-road use) may find it too firm.
3. **Maintenance Requirements** Yamaha shocks require periodic servicing (every 5,000 10,000 miles) to maintain optimal performance, including oil changes and valve adjustments.
4. **Cost of Replacement** If damaged or worn out, replacing the shock can be expensive, especially if aftermarket options are not considered.
5. **No Upgrade Potential** Unlike aftermarket shocks, this part does not offer performance upgrades (e.g., better compression damping, adjustable rebound).
6. **Potential for Wear Over Time** Like all suspension components, it will degrade with age and mileage, requiring eventual replacement.
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### **Comparison with Aftermarket Alternatives**
- **Fender (4UH-21611-90-00):**- **Aftermarket Pros:** More design options (splitters, cutouts, custom colors), often lighter, and sometimes cheaper.
- **Aftermarket Cons:** May not fit as perfectly, lower durability in some cases, and potential compatibility issues with other mods.
- **Shock Absorber (3GH-21611-11-00):**- **Aftermarket Pros:** Advanced valving (e.g., hlins TTX for track use, YSS for comfort), adjustable settings, and often better durability.
- **Aftermarket Cons:** Higher upfront cost, potential learning curve for tuning, and warranty voiding if not installed correctly.
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### **Conclusion**
#### **When to Buy OEM (Yamaha Parts):**- You prioritize **reliability, ease of installation, and stock fitment** without compromising performance.
- You want **minimal hassle** and don t need advanced customization.
- You plan to **keep the bike stock or with minor mods** (e.g., exhaust, tires).
- You value **warranty coverage** and official support.
#### **When to Consider Aftermarket:**- You want **better performance tuning** (e.g., softer shocks for comfort, stiffer for track use).
- You prefer **aesthetic customization** (e.g., splitters, custom colors for the fender).
- You ride in **aggressive conditions** (e.g., track days, rough terrain) where aftermarket suspension can provide an edge.
- You re open to **long-term cost savings** if aftermarket parts last longer with proper care.
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### **Final Recommendation**
#### **For the Average Rider (Street/Commuting):** - **Buy the OEM parts (4UH-21611-90-00 fender 3GH-21611-11-00 shock)** if:- You want a **simple, reliable replacement** without extra effort.
- The bike remains mostly stock or has minor mods.
- You appreciate Yamaha s build quality and warranty.
- **Consider aftermarket fenders** if you want **splitters or a more aggressive look** (e.g., **YSS or generic splitters**).
#### **For Performance or Customization-Oriented Riders:**- **Upgrade the shock** to an aftermarket option (e.g., ** hlins TTX for track, YSS for comfort**) if you plan to push the bike harder or modify other suspension components.
- **Stick with OEM fender** unless you specifically want a custom look, in which case **aftermarket splitters** (e.g., **YSS or custom-made**) may be worth it.
#### **Budget Consideration:**- If money is a concern, the **OEM fender is a safe, no-frills choice**, while the **OEM shock is a solid middle ground** though upgrading later may be beneficial for serious riders.
- Aftermarket shocks can be **2 3x the price** of OEM but offer **superior performance and adjustability**.
#### **Best Overall Choice:**- **For most riders**, the **Yamaha OEM parts are an excellent default choice** they work perfectly, are reliable, and require no extra thought.
- **For those who ride aggressively or want to customize**, investing in **aftermarket suspension (e.g., hlins, YSS) and possibly a custom fender** will enhance performance and aesthetics.
**Final Verdict:**If you want **plug-and-play reliability**, go with the **Yamaha OEM fender and shock**. If you re modifying the bike or seeking better performance, **explore aftermarket options** for the shock and consider custom fenders if aesthetics matter.
Usable Condition. Guarantee: All parts except those below have a 30-day guarantee. Yamaha Moto 4 250 2X4 90 Fender Rear 3GH-21611-11-00 54341: 249.99: Manufacturer Part Number4UH-21611-90-00. Location: A-25-C-6-D 1.