
( Brand: Rockshox ), ( Part Type: Charger Fork ), ( Compatible Brand: For Rockshox ), ( Wheel Size: 29 In ), ( Suspension Travel: 200 Mm ), ( Color: Red ), ( Material: Aluminum ), ( Steerer Tube Diameter: 1 1/8 In ), ( Manufacturer Warranty: 2 Years ), ( Fork Type: Suspension ), ( Compatible Bike Type: Downhill Bike ), ( Country Of Origin: Taiwan ), ( UPC: 004020955001 )
The **RockShox Boxxer Ultimate Charger 29** (part number **004020955001**) is a high-performance, air-sprung suspension fork designed for demanding off-road conditions, offering an uncompromising blend of stiffness, compliance, and ride quality to elevate your 29-inch wheel mountain biking experience. Engineered for aggressive trail riding, enduro, and even light cross-country disciplines, this fork delivers a relentless response to rough terrain while maintaining precision and control. At its core, the Boxxer Ultimate Charger 29 features RockShox s proprietary **Boxxer** design, which combines a rigid, high-strength steel crown with a lightweight, high-modulus aluminum fork leg construction. This hybrid approach ensures exceptional stiffness and durability while minimizing weight, allowing for a more responsive and efficient energy transfer from the trail to your wheels.
The **200mm travel** specification strikes a perfect balance for riders seeking deep, progressive suspension performance without sacrificing pedaling efficiency or handling sharpness. This travel range is ideal for riders tackling technical descents, rocky singletracks, and moderate jumps while still excelling on climbs where the fork s optimized stiffness keeps the bike agile and the rider in control. The **20x110** axle interface ensures compatibility with modern wheel hubs, providing a secure and stable platform for high-speed cornering and aggressive cornering maneuvers. Meanwhile, the **52mm offset** enhances the fork s geometric stability, reducing fork rake and improving steering feel, which is particularly beneficial for riders who demand a more direct and responsive handling experience.
One of the standout features of the Boxxer Ultimate Charger is its **air-spring suspension system**, which allows for precise tuning of ride feel and performance. The fork s **100mm air chamber** enables riders to adjust the sag (compression) to match their weight, riding style, and terrain demands, ensuring optimal suspension performance whether you re hitting big drops or cruising over smooth trails. The **ultra-smooth damping** provided by RockShox s **Ultimate** damping technology delivers a progressive, adjustable response that absorbs impacts while maintaining control. The fork s **low-speed compression (LSC)** and **high-speed compression (HSC)** adjustments allow for fine-tuning of rebound and damping characteristics, catering to everything from aggressive downhill riding to technical climbs. Additionally, the **ultra-low-speed compression (ULSC)** feature ensures that the fork remains responsive and stable even at the smallest bumps, enhancing traction and confidence in the roughest conditions.
Built to withstand the harshest demands, the Boxxer Ultimate Charger 29 features **RockShox s proprietary fork crown and leg design**, which incorporates **high-strength steel and aluminum alloys** for maximum stiffness and durability. The fork s **steel crown** provides a rigid foundation, while the **aluminum legs** reduce weight without compromising strength. The **sealed cartridge-style fork legs** are designed to minimize maintenance and maximize reliability, ensuring that the fork remains in peak condition for years of use. The **RockShox s proprietary axle system** further enhances durability, with a robust design that resists wear and tear from repeated impacts and high-stress riding conditions.
The **Boxxer Ultimate Charger 29** is not just a fork; it s a performance-enhancing tool that transforms your bike into a more capable, responsive, and enjoyable machine. Whether you re shredding steep descents, navigating technical climbs, or tackling a mix of trail conditions, this fork delivers a **smooth, controlled, and engaging ride** that sets a new standard for suspension performance. With its **adjustable air spring, progressive damping, and robust construction**, the Boxxer Ultimate Charger 29 is a premium choice for riders who refuse to compromise on quality, durability, or ride feel. Upgrade your setup with this fork, and experience the difference that RockShox s cutting-edge technology can make in turning rough terrain into a playground.
### **RockShox Boxxer Ultimate Charger 29 (004020955001) Pros and Cons**
#### **Pros:**1. **High-Quality Construction** The Boxxer Ultimate is built with RockShox s proprietary **Burly** aluminum, which is stronger and more durable than standard aluminum, reducing weight while maintaining stiffness. The **Ultimate** variant also features **carbon fiber crowns** for improved stiffness and reduced weight.
2. **Excellent Damping Performance** The **Charger** suspension tuning is optimized for **trail riding**, offering a **smooth, controlled, and progressive** feel. The **air-spring system** allows for fine-tuned adjustability (via **RockShox s AirBox** or **Quick Release** for basic compression adjustments), making it adaptable to different rider weights and terrain preferences.
3. **Long Travel (200mm)** The **200mm travel** is ideal for **aggressive trail, enduro, and light downhill** riding, providing enough stroke to handle big hits while still being manageable on technical sections. This makes it a versatile choice for riders who push their bikes hard.
4. **Adjustable Rebound & Compression** Unlike basic forks, the **Ultimate Charger** offers **adjustable rebound damping** (via the **Rebound Damping Adjustment** knob) and **low-speed compression** (via the **AirBox** or **Quick Release** settings), allowing riders to fine-tune performance for different conditions.
5. **Reliability & Durability** RockShox is known for **long-lasting forks**, and the Boxxer Ultimate is no exception. The **sealed cartridge system** reduces maintenance needs, and the **Burly aluminum** frame resists fatigue better than standard alloys.
6. **Good for Aggressive Riding** The **progressive tuning** helps manage **big hits and rough terrain** without bottoming out, making it suitable for riders who demand performance on technical descents.
7. **Compatibility with Modern Bikes** The **20x110mm axle standard** (with **52mm offset**) is widely supported by **2020 mountain bikes**, including many **trail, enduro, and light DH bikes**. It works well with **disc brakes** and **wide tires**.
---
#### **Cons:**1. **Expensive** As a **premium RockShox fork**, the Boxxer Ultimate Charger is **one of the most expensive forks** in its class. The price point may be prohibitive for **budget-conscious riders** or those who don t need the extra performance.
2. **Heavy for Its Class** While the **Burly aluminum and carbon crowns** improve stiffness, they also add weight. The **Boxxer Ultimate Charger** is **heavier than some competitors** (e.g., Fox 36 or DT Swiss SLR), which can affect pedal efficiency on climbs.
3. **Maintenance Requirements** While the **sealed cartridge system** reduces leaks, **air-sprung forks still require occasional servicing** (e.g., checking air pressure, inspecting seals, and adjusting damping). Neglecting maintenance can lead to **poor performance or premature wear**.
4. **Not Ideal for Lightweight or Cross-Country Use** If you primarily ride **XC or lightweight trail**, a **shorter-travel fork (120-140mm)** or a **lighter fork (e.g., Fox 34 or DT Swiss SLR)** might be more suitable. The **200mm travel** is better suited for **aggressive trail or enduro**.
5. **Learning Curve for Damping Adjustments** The **AirBox and rebound adjustments** can be confusing for beginners. Proper tuning requires **understanding how different settings affect ride quality**, which may take time to master.
6. **Potential for Bottoming Out on Very Rough Terrain** While the **progressive tuning** helps, **extreme jumps or deep drops** can still cause the fork to bottom out if the **sag is not set correctly**. Riders pushing hard on **downhill or freeride** may need to adjust sag frequently.
7. **Limited Aftermarket Support** Unlike **Fox forks**, which have a **wider range of aftermarket parts** (e.g., custom springs, damping adjustments), RockShox s **Boxxer Ultimate** has **fewer third-party tuning options**, making customization harder.
---
### **Conclusion & Recommendation**
The **RockShox Boxxer Ultimate Charger 29 (200mm, 20x110, 52mm offset)** is a **high-performance fork** designed for **aggressive trail, enduro, and light downhill riding**. It excels in **durability, damping quality, and adjustability**, making it a **top-tier choice for riders who demand precision and reliability** on technical terrain.
**Who Should Buy It?**
**Aggressive trail riders** who need **200mm of travel** and **progressive damping**.
**Enduro riders** looking for a **durable, high-performance fork** that handles big hits.
**Riders who prioritize RockShox s reputation** for **reliability and aftermarket support**.
**Those who can afford a premium fork** and want **fine-tunable suspension**.
**Who Should Avoid It?**
**Budget-conscious buyers** If cost is a major concern, consider **Fox 36 or DT Swiss SLR** alternatives.
**Lightweight XC riders** A **shorter-travel, lighter fork** (e.g., Fox 34, RockShox Recon) would be more efficient.
**Beginners unfamiliar with air-sprung forks** The **damping adjustments** require some learning.
**Riders who rarely service their bike** **Air-sprung forks need maintenance** to perform optimally.
### **Final Recommendation:**If you **ride aggressively, prioritize durability, and want the best damping RockShox has to offer**, the **Boxxer Ultimate Charger is an excellent choice**. However, if you're on a **tighter budget, ride mostly XC, or prefer a lighter fork**, you may find **alternatives like the Fox 36, DT Swiss SLR, or RockShox Recon** to be better fits.
For most **trail and enduro riders**, this fork **delivers outstanding performance** just be prepared for the **higher cost and maintenance requirements**.
In good condition. Will receive a 50hr lower leg service before shipping.