The RockShox ZEB Select+ is a robust suspension fork designed for aggressive riding, offering a smooth and responsive performance. To ensure the fork operates optimally, it’s essential to maintain it regularly. This guide covers the installation, adjustment, maintenance, troubleshooting, and optimization of the ZEB Select+, providing riders with all the information they need for longevity and performance.
Tools Required
- 5mm, 6mm, and 8mm Allen wrenches [paid link]
- Torque wrench [paid link] (with accurate settings)
- Suspension fluid
- A clean rag
- Suspension fork seals (if replacing)
- Bushing tool (for servicing the lower legs)
- Isopropyl alcohol (for cleaning)
- T20, T25, and T30 Torx drivers
- Service kit from RockShox
Installation of the ZEB Select+
Preparing the Fork and Bike
Before installing the ZEB Select+ fork, ensure that your bike is compatible with the fork’s axle type, travel length, and steerer tube dimensions. The ZEB Select+ is typically designed for a 1.5″ tapered head tube and comes in multiple travel options, generally between 160mm and 180mm.
Installing the Fork
- Remove the old fork: If you’re replacing a fork, begin by removing the front wheel, brake calipers, and the existing fork.
- Install the headset: Place your headset components into the head tube of the bike frame. Make sure all parts are clean and free from debris.
- Attach the fork: Insert the ZEB Select+ into the head tube. Align the fork with the headset bearings, ensuring the steerer tube is straight. Tighten the fork’s compression and stem bolts to the manufacturer’s torque specifications.
- Install the front wheel: Attach the front wheel, ensuring the axle is secure and properly tightened.
- Connect the brake: Reattach the brake caliper, ensuring it’s aligned with the rotor.
Final Checks
- Double-check the torque on all fasteners.
- Ensure the fork is aligned with the frame and that the brake rotor is centered in the caliper.
Adjustment of the ZEB Select+
The ZEB Select+ features RockShox’s Charger 2.1 damper, providing excellent adjustment capabilities for different riding styles and terrain. To fine-tune the fork, follow these steps:
Air Spring Pressure
- Set the air pressure: The correct air pressure is crucial for optimal performance. Start by setting the pressure based on your body weight and desired suspension feel. The ZEB Select+ includes an air spring with a recommended starting point in the fork’s manual.
- Fine-tune the air pressure: For additional adjustments, test the fork’s performance. If you experience bottoming out, reduce air pressure slightly; if you feel the fork is too soft, add a bit more air.
Rebound and Compression Damping
- Adjust rebound: Use the rebound knob at the bottom of the left leg to set the fork’s rebound speed. For faster rebound, turn the knob counterclockwise, and for slower rebound, turn it clockwise.
- Compression damping: Adjust the compression damping using the dial on the right fork leg. The ZEB Select+ offers a 2-position compression adjustment, allowing for firm or open modes. Experiment with both to find the setting that matches your riding style.
Sag Setup
Setting the correct sag is essential to ensure the fork performs efficiently. To set the sag:
- Sit on the bike: In your normal riding position, sit on the bike, ensuring your weight is centered and the suspension compresses.
- Measure the sag: Measure how much the fork compresses (this is the sag), typically between 25% and 30% of the fork’s travel.
- Adjust air pressure: If the sag is too deep or shallow, adjust the air pressure accordingly.
Maintenance of the ZEB Select+
Regular maintenance ensures your ZEB Select+ suspension fork performs optimally. Below are the key maintenance steps to follow:
Cleaning and Inspection
- Clean the fork: Use a clean rag to wipe down the stanchions after each ride to remove dirt and debris.
- Inspect for leaks: Regularly check the seals for any signs of fluid leakage, which could indicate a need for seal replacement.
- Check stanchion condition: Inspect the stanchions for any scratches or damage. Damaged stanchions can affect performance and lead to seal failure.
Lubrication and Servicing
- Lower leg service: Every 50 hours of riding, or once every season, perform a lower leg service. Remove the fork from the bike and use a bushing tool to service the lower legs, ensuring the bushings and seals are well-lubricated.
- Damper service: The damper should be serviced every 100 hours. This involves removing the damper cartridge, cleaning it thoroughly, and replacing the fluid inside. Ensure that the correct fluid is used for the best performance.
Replacing Seals
If the fork starts leaking oil or performs sluggishly, it may be time to replace the seals. Follow these steps:
- Remove the fork: Detach the fork from the bike.
- Remove the lower legs: Use a suspension service kit to remove the lower legs from the stanchions.
- Replace seals: Replace the wiper seals and oil seals as necessary, ensuring the new seals are compatible with the ZEB Select+.
Troubleshooting Common Issues with the ZEB Select+
Fork Bottoming Out
If the fork bottoms out frequently, check the air pressure. Too little air pressure can cause excessive compression, leading to bottoming out. Adjust the pressure or consider increasing the compression damping to prevent this issue.
Poor Rebound Performance
If the rebound feels either too fast or too slow, check the rebound adjustment. If the fork is still not responding as expected, consider servicing the damper. Old fluid or air bubbles can negatively impact rebound performance.
Fork Squirming or Flexing
If the fork feels like it’s flexing excessively, check for proper installation, particularly around the axle and fork crown. Also, inspect for any loose bolts or unaligned parts, which can cause instability.
Customization and Optimization for Performance
The ZEB Select+ is an incredibly versatile fork, allowing for multiple customization options. Here are a few tips to optimize your setup:
Adjusting for Terrain
- For downhill riding: Increase the air pressure and adjust the compression damping to a firmer setting to reduce excessive compression during rough terrain.
- For cross-country riding: Lower the air pressure slightly to improve small bump sensitivity while maintaining efficient pedaling support with the compression setting.
Tuned Suspension
To achieve a personalized feel, consider upgrading to custom springs or adjusting the damping circuits. You can fine-tune the high-speed compression settings if you’re aiming for a more aggressive setup.
Comparing ZEB Select+ with Similar Models
ZEB Select+ vs. ZEB Ultimate
- Damper: The ZEB Ultimate features the Charger 2.1 RC2 damper with more advanced adjustments compared to the Select+’s simpler Charger 2.1 damper.
- Performance: While the ZEB Select+ is excellent for aggressive riding, the ZEB Ultimate offers more adjustability for highly technical terrain and riders who demand finer control.
- Price: The ZEB Select+ is a more budget-friendly option, providing similar performance with fewer adjustment options compared to the Ultimate model.
ZEB Select+ vs. Lyrik
- Travel Range: The ZEB Select+ offers more travel options, making it ideal for downhill and enduro riding, while the Lyrik is better suited for lighter trail riding.
- Stiffness: The ZEB Select+ has a stiffer chassis, which translates to better performance on aggressive terrain.
Compatibility with Other Drivetrain Components
The ZEB Select+ is designed to work seamlessly with modern drivetrain systems, including 12-speed and even e-bike setups. Ensure that your fork’s travel, axle type, and brake mount standards are compatible with your frame, as this will help ensure smooth performance across your entire bike. Additionally, the fork’s performance can be optimized when paired with high-quality suspension components, such as rear shocks and seat posts, from the same brand or compatible systems.
By following these service, adjustment, and troubleshooting tips, riders can ensure their RockShox ZEB Select+ suspension fork delivers peak performance for years to come.