DIY Rear Shock Sag Setup for Super Deluxe Select+

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Setting up the rear shock sag on your RockShox Super Deluxe Select+ is an essential step in achieving optimal performance, comfort, and control. Sag refers to the amount the shock compresses under your body weight and rider input, and it plays a crucial role in the overall handling and ride feel of your bike. In this guide, we’ll walk you through how to correctly set sag for the Super Deluxe Select+, including tools required, step-by-step instructions, and tips for troubleshooting and optimization.

Tools Required

  • Shock pump (with accurate pressure gauge)
  • Ruler or measuring tape
  • Marker or tape (to mark your sag measurement)
  • Bike stand [paid link] (optional, for easier setup)

Understanding Sag and Its Importance

Sag is the amount your rear shock compresses when you are on the bike in riding position. It is typically expressed as a percentage of the shock’s total travel. Proper sag ensures that the suspension performs at its best, offering the correct balance of comfort and support. Too little sag can result in a harsh, unresponsive ride, while too much sag can make the suspension feel too soft and lack control.

The Super Deluxe Select+ rear shock has a versatile setup that can be fine-tuned to suit different rider types and riding styles. The ideal sag setting for most riders typically falls within the 25-30% range of the shock’s total travel, but this can vary depending on riding style, terrain, and rider weight.

Step-by-Step Guide to Setting Up Sag for the Super Deluxe Select+

1. Prepare the Bike and Rider

Before setting the sag, ensure the bike is in a stable position. Ideally, use a bike stand [paid link] so the bike stays upright and the shock is properly oriented.

  • Remove any gear or accessories from the bike to ensure that the rider’s weight is accurately represented.
  • Wear the gear you’d typically ride in, such as a helmet, shoes, and pads, as this will affect your overall weight distribution.

2. Measure the Shock’s Full Travel

To set the correct sag, you first need to know the shock’s total travel. The RockShox Super Deluxe Select+ offers a range of travel options depending on your frame. The travel can be found in the product specifications.

  • Measure the total shock travel using a ruler or measuring tape. If unsure, the travel range is typically marked on the shock’s body. For instance, the shock might offer 50mm, 55mm, or 60mm of travel, depending on your model.

3. Set the Correct Air Pressure

  • Using your shock pump, inflate the shock to the recommended pressure based on your weight. RockShox provides a guide for air pressure settings depending on your weight, which is typically listed on the shock pump itself or in the product manual.
  • Inflate the shock in small increments and check the pressure after each adjustment. Ensure the air pressure corresponds to the suggested pressure for your weight and riding style.

4. Mark the Sag Indicator

  • Once the shock is properly inflated, use a marker or piece of tape to mark the current position of the shock’s shaft. This will act as a reference point for measuring sag.
  • The mark should be placed at the midpoint of the shock’s stanchion (the upper portion of the shock that moves up and down). Ensure it is clearly visible to help you track the shock’s compression.

5. Mount the Bike and Settle Into Riding Position

  • Get on the bike while it is either supported by a friend or in a stable position like a bike stand. Ideally, the bike should be on the ground so it is at its normal riding position.
  • Sit in your riding posture with your full weight applied. This includes balancing as you would during a ride and allowing the suspension to compress under your weight.

6. Check the Sag Measurement

  • After settling into the riding position, check the mark you made on the shock’s stanchion. The mark will show how much the shock has compressed under your body weight.
  • Measure the amount of compression. The sag should fall within the range of 25-30% of the shock’s total travel. For example, if the shock has 50mm of travel, the sag should be between 12.5mm and 15mm.

7. Adjust the Air Pressure (if necessary)

  • If the sag is outside the ideal range, adjust the air pressure accordingly.
    • To reduce sag: Increase the air pressure by adding small amounts of air until the desired sag is reached.
    • To increase sag: Decrease the air pressure by releasing air in small increments until the desired sag is achieved.
  • After each adjustment, recheck the sag measurement by repeating steps 5 and 6.

8. Final Check and Test Ride

Once the sag is correctly set, perform a test ride on your typical terrain to ensure the shock feels balanced and responsive. During the ride, pay attention to how the bike handles and whether the suspension feels too soft or too stiff. Fine-tune the pressure as necessary based on your experience during the ride.

Troubleshooting Common Sag Setup Issues

Sag Too High (Over-compressed)

If the sag is too high and the suspension feels overly soft or squishy, the shock might not be providing enough support for your weight and riding style. This could lead to a lack of control, especially on technical terrain or during hard pedaling efforts.

  • Solution: Increase the air pressure in the shock to reduce sag. Recheck the sag after each adjustment and perform a test ride to ensure the suspension feels responsive and supportive.

Sag Too Low (Under-compressed)

If the sag is too low and the shock feels too firm or harsh, it may not be absorbing bumps and impacts effectively, which can lead to an uncomfortable ride and reduced traction on rough terrain.

  • Solution: Decrease the air pressure in the shock. This will allow more compression and improve comfort. Always check the sag again after adjusting.

Incorrect Rider Position

If you’re not achieving the correct sag despite adjusting the air pressure, make sure you are in the correct riding position when setting the sag. Standing or shifting your weight too much during the setup can lead to inaccurate readings.

  • Solution: Ensure you’re in your full riding position, with your body weight evenly distributed, and that the bike is fully loaded with any gear or accessories you typically use.

Optimizing Your Super Deluxe Select+ for Performance

Fine-tuning Rebound and Compression Settings

Once you’ve correctly set the sag, you can further customize the performance of your Super Deluxe Select+ by adjusting the rebound and compression settings.

  • Rebound Adjustment: The rebound setting controls how quickly the shock returns to its extended position after compression. If you find the shock returning too quickly or too slowly, adjust the rebound knob accordingly.
  • Compression Adjustment: Compression damping affects how much the shock resists compression under different forces. Experiment with different settings to optimize the shock for your riding style and terrain.

Rider Preferences and Terrain Considerations

  • Cross-Country Riders: A firmer suspension with slightly less sag can provide more efficient pedaling and improved performance on smooth trails.
  • Downhill and Enduro Riders: A softer setup with more sag provides better traction and comfort on rough and technical terrain.

Compatibility with Other Drivetrain Components

The Super Deluxe Select+ rear shock is compatible with a wide range of modern mountain bike drivetrains. When selecting a shock for your bike, ensure that the travel and mounting hardware are compatible with your frame and drivetrain setup.

If you’re upgrading to a Super Deluxe Select+, check for compatibility with your bike’s rear triangle and linkage system to ensure proper fitment and suspension performance.

In conclusion, setting up the sag on your RockShox Super Deluxe Select+ rear shock is an important step in tuning your bike for the best performance. By following this guide and adjusting the air pressure to achieve the ideal sag, you can optimize your suspension for improved comfort and control on every ride.