ROCKSHOX 00.4020.817.001 Rudy Ultimate Fork Travel

( Brand: Rockshox ), ( Part Type: Fork ), ( Wheel Size: 700c ), ( Suspension Travel: 40 Mm ), ( Color: Black ), ( Material: Aluminum ), ( Steerer Tube Diameter: Tapered ), ( Manufacturer Warranty: 2 Years ), ( Suspension Type: Lockout ), ( Fork Type: Suspension ), ( Compatible Bike Type: Gravel Bike ), ( Item Weight: 7.36 Lbs. ), ( UPC: 004020817001 )

Review ROCKSHOX Rudy Ultimate Xplr Fork Black 40mm Travel

The **RockShox Rudy Ultimate Fork (Model 00.4020.817.001) with 40mm of travel** is a high-performance, air-sprung fork designed to deliver an uncompromising blend of comfort, control, and responsiveness for aggressive riding styles, particularly tailored for downhill, freeride, and extreme trail conditions. Engineered with RockShox s legendary precision and cutting-edge technology, this fork is a standout choice for riders seeking a balance between plush damping and razor-sharp feedback. At its core, the Rudy Ultimate leverages RockShox s **Rudy Ultimate Damping System**, a sophisticated air-spring configuration paired with a **dual-zone rebound and compression damping** setup that adapts seamlessly to the demands of rough terrain. The **40mm of travel** strikes a perfect middle ground for riders who demand both the ability to absorb massive impacts such as drops, rocks, and rough descents while maintaining the agility and control needed for technical maneuvers. The fork s **air-spring system** allows for effortless height adjustments, enabling riders to fine-tune stiffness and comfort to match their weight, riding style, and terrain preferences, whether it s a lighter setup for faster, more responsive handling or a softer ride for prolonged comfort on grueling descents.

The **Rudy Ultimate s** standout feature is its **adaptive damping technology**, which utilizes RockShox s **Rudy Ultimate Damping System (RUDS)** to provide a near-perfect blend of plushness and responsiveness. The fork s **dual-zone rebound and compression damping** ensures that it remains smooth and controlled under heavy loads while still delivering crisp, immediate feedback to the rider s inputs. This is achieved through RockShox s **adaptive rebound damping**, which adjusts dynamically to the rider s pedaling cadence, preventing bottoming out and maintaining a consistent pedal feel even at high speeds or under heavy braking. The **compression damping** is equally refined, with a progressive curve that tames harsh impacts without sacrificing the fork s ability to return to its neutral position quickly, ensuring the bike remains stable and predictable. The **Rudy Ultimate s** **steel crown and aluminum lower leg** construction provides a robust yet lightweight frame, while the **high-quality seals and internals** ensure durability and longevity, even under the most demanding conditions.

Visually, the Rudy Ultimate fork exudes a sleek, aggressive aesthetic with its **black and silver finish**, complemented by RockShox s signature **Rudy branding** on the crown. The **40mm travel** is optimized for riders who demand both the ability to tackle steep, technical descents and the versatility to handle a variety of terrains, from fire roads to extreme downhill tracks. The fork s **air-adjustable sag** allows for precise tuning, ensuring optimal performance whether the rider is a heavier, more aggressive downhiller or a lighter, faster trail rider. Additionally, the **Rudy Ultimate s** **low-profile design** and **compact footprint** make it an excellent fit for bikes with limited head tube clearance, while its **high-quality internals** including **RockShox s proprietary damping technology** ensure that it remains a reliable workhorse for years to come. Whether you're carving through technical singletrack, bombing down steep descents, or pushing the limits in freeride terrain, the Rudy Ultimate fork delivers the perfect marriage of comfort, control, and performance, making it a top-tier choice for serious riders who refuse to compromise.

### **Pros and Cons of the Rockshox Rudy Ultimate Fork (00.4020.817.001) with 40mm Travel**

1. **High-Quality Build** The Rudy Ultimate is part of Rockshox s premium line, featuring a robust aluminum fork with a durable design optimized for cross-country and light trail riding. The use of high-grade materials ensures longevity and reliability.

2. **Smooth and Responsive Performance** Rockshox s reputation for tuning means this fork delivers consistent damping and rebound control, making it suitable for riders who demand precision in their handling. The air suspension system allows for fine-tuned adjustments to suit different rider weights and terrain preferences.

3. **Adjustable Air Spring** The fork includes an air spring system, which allows riders to adjust stiffness and sag to match their weight and riding style. This flexibility is particularly useful for riders who frequently switch between different bikes or terrain types.

4. **Durability and Strength** With 40mm of travel, this fork is designed for cross-country and light trail use, where durability is key. The reinforced frame and components are built to withstand the demands of frequent, high-mileage riding without excessive wear.

5. **Compatibility with Various Bikes** The Rudy Ultimate is a versatile fork that fits a wide range of bikes, including hardtail and lightweight trail rigs. Its standard axle spacing and mounting points make it a practical choice for riders looking for a reliable upgrade.

6. **Maintenance-Friendly** Rockshox forks are known for being relatively easy to maintain, with accessible components for routine checks and adjustments. The fork s design minimizes potential points of failure, reducing downtime for repairs.

7. **Good Value for the Segment** While not the most expensive fork in Rockshox s lineup, the Rudy Ultimate offers a balanced combination of performance and affordability compared to higher-end models like the SID or ZEB.

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1. **Limited Travel for Aggressive Riding** At 40mm, this fork is best suited for cross-country and light trail riding. For riders who frequently tackle steep descents, rough technical terrain, or jump-heavy trails, 40mm may feel insufficient, leading to bottoming out or reduced confidence.

2. **No Lockout Mechanism** Unlike some trail forks, the Rudy Ultimate does not include a lockout feature. This means riders must manually adjust air pressure or use a lockout system on the bike itself (if equipped) to switch between climbing and descending modes, which can be inconvenient on long rides.

3. **Weight Considerations** While not overly heavy, the Rudy Ultimate is heavier than some carbon or ultra-lightweight aluminum forks. This added weight may be noticeable on climbs or in races where every gram counts.

4. **Less Advanced Damping Tuning** Compared to Rockshox s higher-end forks (e.g., SID or ZEB), the Rudy Ultimate has simpler damping adjustments. Riders who require precise tuning for extreme conditions may find the damping less adaptable to their needs.

5. **Potential for Wear Over Time** Like all forks, the Rudy Ultimate will experience wear, particularly in the air spring and seals, over time. While Rockshox components are durable, riders should budget for eventual maintenance or replacement parts.

6. **Limited Aftermarket Support** While Rockshox parts are widely available, some aftermarket upgrades (e.g., custom springs or damping adjustments) may be more limited compared to higher-end forks that have broader tuning communities.

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The Rockshox Rudy Ultimate fork (00.4020.817.001) with 40mm of travel is an excellent choice for riders who prioritize durability, smooth performance, and versatility for cross-country and light trail use. Its air suspension system, robust build, and reasonable price point make it a practical upgrade for riders who want a reliable fork without the complexity or cost of premium models. However, it is not ideal for aggressive downhill or jump-heavy riding due to its limited travel and lack of advanced features like a lockout.

If your riding style aligns with cross-country or light trail use and you value a balance of performance and affordability, this fork is a solid recommendation. For riders who demand more travel, advanced damping, or lockout functionality, exploring Rockshox s higher-end options (e.g., SID, ZEB) or other brands may be worth considering.

- You primarily ride cross-country or light trail terrain.

- You want a durable, well-tuned fork with adjustable air suspension.

- You are looking for a reliable fork that balances performance and cost.

- You do not require a lockout mechanism or extreme travel.

- You frequently ride steep descents, technical trails, or jump-heavy terrain (opt for 100mm or 120mm travel).

- You want a lockout feature for easier climbing (look at Rockshox SID or other brands with lockout forks).

- You prioritize weight savings or advanced damping tuning (explore carbon forks or higher-end aluminum options).

Details:

Steerer tube is uncut and includes a wolf tooth crown race star nut. Fork functions properly. Lockout works. Axle to Crown 425mm Brake Type Flat Mount Color Black, Gloss Black External Adjustments Low Speed Compression Damping, Rebound Damping Fork Rake 45mm Lockout Mounted Maximum Tire width 50mm Negative Spring Air Steerer Tube Tapered Travel mm 40mm Wheel Size 700c.

There is cosmetic damage to the lowers, including some chipping and scrapes around arch. Used lightly, but traveled with. Stanchions are undamaged - seals look good.

part #: 004020817001 prices

• $350.00-$843.00

specifications ribicycl:

• brand: Rockshox
• part type: Fork
• wheel size: 700c
• suspension travel: 40 Mm
• color: Black
• material: Aluminum
• steerer tube diameter: Tapered
• manufacturer warranty: 2 Years
• suspension type: Lockout
• fork type: Suspension
• compatible bike type: Gravel Bike
• item weight: 7.36 Lbs.
• upc: 004020817001

general ribicycl:

• Cycling > Bicycle Components Parts > ks
• condition: Used

offer ribicycl:

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

shipping ribicycl:

• type: Calculated
• carrier: UPS
• class: Standard
• transit: 5-12 Days
• cost: $21.82
• service: UPS Ground

seller ribicycl:

• city: Sunnyvale, California
• # reviews: 76
• rating: 100.0%

returns ribicycl:

• policy: No Returns

payments ribicycl:

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

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