The RockShox SID Select+ suspension fork is engineered for serious cross-country (XC) riders who demand high-performance handling, lightweight construction, and efficient responsiveness. This model bridges the gap between elite race components and everyday reliability, featuring advanced damping technology and modern tuning options. Here is a comprehensive breakdown of its top features, installation guidance, maintenance practices, and performance optimization.
Technical Overview of the SID Select+ Suspension Fork
The SID Select+ is part of the SID family but offers a more affordable alternative to the top-tier SID Ultimate, while maintaining most of its core functionalities. Designed with a 32mm chassis and built for 100mm to 120mm travel, it offers precise control and a high stiffness-to-weight ratio. The Select+ comes equipped with the proven Charger RL damper and DebonAir+ spring, providing efficient small-bump compliance and consistent damping across various terrains.
Tools Required
- 6mm and 8mm hex keys [paid link]
- Torque wrench [paid link] (preset to manufacturer specifications)
- Suspension pump (for air pressure tuning)
- Lower leg service kit (RockShox-specific)
- Suspension grease and RockShox suspension fluid
- Clean rags and isopropyl alcohol
Installation Instructions
Proper installation of the SID Select+ ensures optimal performance and safety on the trail.
Steerer Tube Preparation
Before inserting the fork into the head tube, confirm that the steerer tube is cut to the correct length. Add a crown race compatible with your headset and apply a thin film of suspension grease.
Crown and Headset Integration
Slide the fork into the headset bearings. Ensure that the steerer tube fits snugly and that the top cap compresses the headset without play. Use a torque wrench [paid link] to secure the stem bolts to the manufacturer’s torque specifications.
Brake and Wheel Setup
The SID Select+ supports post-mount disc brakes. Mount the caliper and align it with the rotor. Torque bolts evenly to avoid rotor rub. Install the thru-axle, ensuring the front wheel is seated properly and tightened to the specified torque.
Suspension Tuning and Adjustment
Customizing the air spring and damper settings is key to unlocking the SID Select+’s full potential.
Air Spring Pressure
Use a RockShox suspension pump to set the air pressure according to rider weight and travel. RockShox provides a tuning chart printed on the fork leg or available online. Start with baseline pressure and adjust after trail testing.
Rebound Adjustment
Located at the bottom of the right leg, the rebound knob allows fine-tuning of how quickly the fork extends after compression. For XC riding, a faster rebound helps maintain traction over fast, rolling terrain.
Compression Damping
The Charger RL damper includes a low-speed compression knob at the top of the right leg. Turn clockwise to increase firmness (useful for climbing or sprinting), or counterclockwise for maximum comfort and sensitivity.
Maintenance and Service Intervals
Regular maintenance preserves fork performance and extends lifespan.
Lower Leg Service
Performed every 50 hours of riding. This includes removing the lowers, cleaning the internals, and replacing the foam rings and oil. Use only RockShox-recommended suspension fluid and grease.
Air Spring Service
Recommended every 100 hours. Disassemble the air spring side, clean components, and replace seals as necessary. Pay close attention to the DebonAir+ piston assembly.
Damper Inspection
The Charger RL damper is largely sealed and maintenance-free for extended periods. However, inspect for oil leaks or inconsistent damping, which may require a damper rebuild or replacement.
Troubleshooting Common Set-Up Issues
Proper diagnosis of issues ensures safe and consistent performance.
Excessive Sag or Bottom-Out
Check for underinflation of the air spring or worn air seals. Re-pressurize or replace seals as necessary.
Harsh Compression
If the fork feels overly stiff, reduce compression damping or check for over-pressurization. Also, inspect for internal blockages in the damper circuit.
Noisy Operation
Common causes include dry foam rings, contaminated oil, or loose brake calipers. A lower leg service typically resolves these noises.
Customization and Performance Optimization
For riders seeking even greater precision, several enhancements are possible.
Volume Spacers
Adding or removing volume spacers allows fine control over end-stroke ramp-up. Fewer spacers yield a linear feel, while more spacers increase progression for aggressive riders.
Remote Lockout Compatibility
The SID Select+ accepts an optional OneLoc or TwistLoc remote lockout, enabling on-the-fly suspension control without removing hands from the bars.
Aftermarket Upgrades
Although the SID Select+ lacks the full adjustability of the SID Ultimate, riders can swap the Charger RL damper for a Charger Race Day damper to reduce weight and improve performance.
Comparison with Similar Models
Understanding where the SID Select+ sits within the RockShox lineup helps riders make informed choices.
SID Ultimate vs. SID Select+
The SID Ultimate features the Charger Race Day damper and lightweight machined crown, reducing overall weight and increasing tuning options. However, it comes at a higher cost.
SID Select vs. SID Select+
The standard SID Select lacks the same DebonAir+ spring and has a more basic damper design. The Select+ strikes a balance with premium internals at a lower cost than the Ultimate.
Compatibility with Other Drivetrain Components
Ensuring drivetrain compatibility is critical, especially when integrating the fork with front-end systems.
- Axle spacing: SID Select+ uses a Boost 110mm spacing, requiring Boost-compatible hubs.
- Brake mounts: Post-mount design supports rotors from 160mm to 180mm without adapters.
- Crown race diameter: Designed for 1.5” to 1-1/8” tapered steerer tubes, common on most modern XC frames.
Frequently Asked Questions
Q1: Can the SID Select+ be used for trail riding?
The SID Select+ is optimized for cross-country terrain. While it can handle light trail use, aggressive riders may prefer the Pike or Revelation models.
Q2: How often should I check my air pressure?
Check air pressure before every ride. Air loss over time is normal, especially with temperature fluctuations.
Q3: Is the SID Select+ compatible with all thru-axle standards?
It supports 15x110mm Boost spacing. Always verify hub compatibility before installation.
Q4: Can I retrofit a remote lockout to this fork?
Yes, the SID Select+ is compatible with RockShox remote lockout systems like OneLoc and TwistLoc.
Q5: What is the weight of the SID Select+ fork?
The fork weighs approximately 1,667 grams (without remote), depending on steerer length and axle type.
Q6: Do I need professional tools to service the fork?
Basic maintenance can be done with standard tools, but damper or air spring service may require RockShox-specific tools.
Conclusion
The RockShox SID Select+ is a race-ready suspension fork that balances performance, adjustability, and cost. Ideal for XC riders seeking consistent damping and lightweight performance, it provides many of the same features as higher-end models with minimal compromise. Proper setup, tuning, and regular maintenance will ensure the SID Select+ performs flawlessly on any cross-country course.