The RockShox SID Select+ is a lightweight cross-country suspension fork engineered for performance and efficiency. Its advanced damper technology and refined chassis aim to deliver exceptional control and comfort. This guide provides detailed instructions for installing, adjusting, maintaining, and optimizing the SID Select+, as well as addressing compatibility and common troubleshooting concerns.
Tools Required
- 6mm and 5mm Allen wrenches [paid link]
- Torque wrench [paid link]
- Shock pump
- Crown race setting tool
- Suspension-specific grease
- Clean cloths and isopropyl alcohol
- Lower leg removal tools (if servicing)
Installation of the SID Select+ Fork
Proper installation ensures the fork operates safely and at peak performance. Start by verifying steerer tube length compatibility with your frame. If trimming is required, cut using a pipe cutter, ensuring a clean and even surface. Install the crown race using the appropriate tool and grease the contact areas to prevent creaking.
Insert the fork into the head tube, followed by spacers and stem. Torque the top cap and stem bolts to the manufacturer’s specification, generally between 5-6 Nm. Ensure the brake caliper aligns with the post mount, and the rotor fits within the caliper housing. If the fork uses a Boost axle (110mm), confirm the wheel hub spacing matches. Thread the thru-axle, tightening to 9-11 Nm using a torque wrench [paid link].
Initial Suspension Setup
Proper air pressure setup is crucial for maximizing comfort and control. Use the RockShox air chart based on rider weight to inflate the fork to baseline pressure using a shock pump. Adjust rebound using the red dial beneath the right fork leg, starting at the midpoint and refining based on ride feel.
For the SID Select+, the DebonAir spring offers improved small-bump sensitivity. Confirm sag by sitting on the bike in full gear and measuring travel used. Target 15–25% of total travel for XC riding. Fine-tune the air pressure or volume spacers if the fork is too linear or ramps up too quickly.
Adjusting the Charger RL Damper
The SID Select+ features the Charger RL damper with a lockout and rebound dial. To optimize comfort, ensure the damper is functioning correctly. Begin with the compression dial fully open and assess trail feel. For firmer control on climbs, engage the lockout lever. For descending or technical terrain, open the compression for better compliance.
Rebound adjustment depends on rider weight and terrain. Slower rebound gives more stability but can lead to harshness over repeated hits. Faster rebound increases comfort but may result in reduced control on rough descents. A balanced midpoint setting usually works best for varied terrain.
Routine Maintenance Practices
Regular maintenance extends the lifespan of the SID Select+ and ensures consistent performance. Clean the stanchions after every ride using a lint-free cloth. Inspect for dirt, oil seepage, or scratches. Apply suspension-specific lube to the wiper seals monthly.
Every 50 hours of ride time, perform a lower leg service. Remove the fork lowers, drain old oil, and clean the internals. Replace foam rings and wiper seals if worn. Refill with 15wt suspension oil and reinstall the lowers, torquing bolts to spec. Every 200 hours, perform a full damper service or send it to an authorized RockShox technician.
Common Troubleshooting Scenarios
Fork Not Rebounding Properly
Check if rebound dial is functional and not seized. If unresponsive, inspect damper fluid levels and internal rebound shaft integrity.
Excessive Fork Dive
Increase air pressure slightly or add volume spacers to improve ramp-up. Also confirm correct sag settings.
Noise During Compression
This may indicate air-oil mixing or worn bushings. Perform a lower leg service and check oil levels. If the issue persists, a damper service may be necessary.
Lockout Not Engaging
Inspect the Charger RL damper lever for damage. Confirm the internal shaft is actuating. A full damper inspection may be needed.
Optimizing Performance for Comfort
To achieve the most comfortable ride, consider adjusting the air spring curve using volume tokens. Adding tokens increases progression, improving bottom-out resistance and mid-stroke support. Removing tokens makes the fork more linear, ideal for lighter riders or smoother trails.
Lubrication plays a significant role in comfort. Applying a thin film of suspension lube to the stanchions reduces friction and enhances small-bump sensitivity. Additionally, keeping seals clean and hydrated prevents stiction, contributing to a plush feel.
Customization Options
The SID Select+ offers several tuning options. Upgrade the damper to a Charger Race Day for a lighter feel and finer control. Use custom decals or protective films to match your bike’s aesthetics. Choose between different offset options (44mm vs 51mm) to tailor steering response.
Riders can also pair the fork with remote lockout systems for on-the-fly tuning during races or endurance rides. While not included in all SID Select+ variants, it can be retrofitted using RockShox-compatible remotes.
Compatibility with Other Drivetrain Components
The SID Select+ is designed primarily for cross-country use, often paired with 100mm–120mm rear shocks. Its Boost axle spacing is compatible with most modern XC hubs. Ensure rotor sizes (usually 160mm–180mm) match caliper brackets. Brake hose routing is clean and designed for seamless integration with SRAM or Shimano brakes.
The tapered steerer is compatible with modern headsets. The fork crown clearance allows for wider tires, typically up to 2.4”, depending on rim width and frame clearance. Always verify wheel and tire compatibility before installation.
Comparison with Other Forks in the SID Lineup
Compared to the SID Ultimate, the SID Select+ offers nearly identical chassis strength but uses the Charger RL instead of the Race Day damper. This results in a slight weight increase but better serviceability and lockout strength.
In contrast, the SID (base model) lacks the advanced damping control and refined internals of the Select+, making the Select+ a preferred choice for racers wanting high performance without the premium cost of the Ultimate.
The SID Select+ strikes a balance between performance, weight, and affordability, making it ideal for serious riders seeking enhanced comfort and reliability on challenging XC trails.
Frequently Asked Questions
Is the SID Select+ good for trail riding?
While primarily designed for cross-country, it can handle light trail use if properly set up with volume spacers and correct air pressure.
How often should I service the SID Select+?
Lower leg service is recommended every 50 hours of riding. A full damper service should be performed every 200 hours or annually.
Can I upgrade the damper in the SID Select+?
Yes, you can upgrade to the Charger Race Day damper if seeking improved performance and weight savings.
What tire width is compatible with this fork?
The fork accommodates tires up to 2.4” wide depending on the rim width and frame clearance.
Is a remote lockout system compatible?
Yes, the SID Select+ supports remote lockout systems, though it may not come stock with one. Ensure you purchase a compatible RockShox remote.
What is the weight of the SID Select+?
It weighs approximately 1,600 grams depending on travel and steerer length configuration.