How to Install, Adjust, and Maintain the Apex DoubleTap Shifters

Posted on
in Apex, Shifters, SRAM

The SRAM Apex DoubleTap shifters [paid link] are a reliable and popular choice for road bike enthusiasts, offering smooth, intuitive shifting and solid performance for riders at various levels. Whether you’re looking to install these shifters for the first time, adjust their setup for optimal performance, or maintain them for long-lasting use, this comprehensive guide has you covered.

Tools Required

Before diving into the installation and maintenance process, ensure you have the following tools at hand:

  • 2mm, 3mm, 5mm, and 6mm Allen wrenches [paid link]
  • Torque wrench [paid link] (for precise tightening)
  • Chain checker tool
  • Cable cutters
  • Soft cloth
  • Grease (light bicycle grease)
  • Lubricant (for cables and components)
  • Bike stand [paid link] (optional but recommended)
  • Small screwdriver (for adjusting barrel adjusters)
  • Hex wrench (for securing shifter housing)

Installing the Apex DoubleTap Shifters

Installing SRAM Apex DoubleTap shifters [paid link] may seem intimidating, but it’s relatively straightforward if you follow the right steps. Here’s a step-by-step guide to get you through the process:

Step 1: Remove the Old Shifters (if applicable)

If you’re replacing existing shifters, you’ll need to remove them first. Use a 5mm Allen wrench [paid link] to undo the bolts securing the shifters to the handlebars. Once the bolts are removed, slide the old shifters off the handlebars.

Step 2: Install the New Shifters on the Handlebars

  • Slide the Apex DoubleTap shifters [paid link] onto the handlebars. Ensure that both shifters are positioned correctly, with the brake levers in the desired orientation.
  • Tighten the bolts with a 5mm Allen wrench [paid link] to secure the shifters. Be careful not to overtighten, as this can damage the handlebar or shifters. Use a torque wrench [paid link] to tighten the bolts to 6–8 Nm for optimal security.

Step 3: Install the Brake and Shifter Cables

  • Start by threading the brake and shifter cables through the respective entry points in the shifters. Make sure the cables are routed properly to avoid interference with the handlebars or other components.
  • Attach the cables to the brake calipers (for the brake side) and the derailleur (for the shifting side).

Step 4: Adjust Cable Tension

  • On the Apex DoubleTap shifters, cable tension plays a significant role in shifting performance. Before tightening the cables completely, use the barrel adjuster on the shifters to achieve the right amount of tension. Begin by shifting to the smallest cog and ensuring the derailleur moves freely.

Step 5: Test the Shifting

  • Shift through the gears and check for smooth transitions. Fine-tune the barrel adjusters if necessary to eliminate any skipping or delay in the shifting process. If your bike has disc brakes, make sure the brake pads are properly aligned with the rotor.

Step 6: Final Tightening and Securing

Once the cables are properly tensioned and the shifters are functioning smoothly, tighten all bolts securely. Use a torque wrench [paid link] to ensure proper torque settings for each bolt.

Adjusting Apex DoubleTap Shifters for Optimal Performance

The SRAM Apex DoubleTap shifters are designed to provide seamless shifting, but regular adjustments are necessary for maintaining their smooth performance. Below are the key adjustments you can make to keep your shifters in top condition:

Adjusting Cable Tension

Cable tension is crucial for smooth gear changes. If you’re experiencing skipped shifts or sluggish responses, the tension may need fine-tuning. To adjust the cable tension:

  1. Use the barrel adjuster located on the shifter itself. Turn the adjuster clockwise to increase tension (tightening the cable) or counterclockwise to decrease it (slackening the cable).
  2. Shift through the gears to check for smooth transitions. If shifting is still sluggish or unresponsive, make further adjustments as needed.

Front and Rear Derailleur Alignment

Both derailleurs should be aligned correctly to ensure accurate shifting. You can adjust their positions using the limit screws located on the derailleur. If your front or rear derailleur isn’t shifting smoothly:

  • Ensure the derailleur cage is not rubbing against the chain or cassette.
  • Adjust the high and low limit screws to make sure the derailleur moves freely across the full range of gears.

Fine-Tuning the DoubleTap Mechanism

The Apex DoubleTap shifters feature a unique “DoubleTap” technology, which requires you to push the shifter paddle once to shift to a harder gear and then again to downshift. If you find the shifting action is not as smooth as expected, try cleaning and lubricating the internal mechanism.

Maintaining the Apex DoubleTap Shifters for Longevity

Proper maintenance is essential to keep your SRAM Apex DoubleTap shifters working like new for years. Here’s a guide to maintaining your shifters:

Regular Cleaning

  • Clean your shifters regularly using a soft cloth and mild soap. Be sure to avoid harsh chemicals, as they can damage the shifter housing.
  • After riding in wet or muddy conditions, wipe down the shifters to remove dirt and moisture. This prevents build-up that can lead to sluggish shifting.

Lubrication

  • Lubricate the shifter cables and housing periodically. This keeps the cables moving smoothly within the housing and helps prevent corrosion.
  • Use a high-quality lubricant designed for bicycle components, but avoid over-lubricating, as excess oil can attract dirt and debris.

Cable and Housing Inspection

  • Inspect the cables for signs of fraying or wear. If you notice any damage, replace the cables immediately to avoid shifting issues.
  • Check the cable housing for cracks or bends. Replace damaged housing to maintain smooth shifting action.

Keep the DoubleTap Mechanism in Check

  • The DoubleTap mechanism is generally low-maintenance but should be inspected periodically for wear. If you notice difficulty with shifting or odd noises when you press the lever, it may be time for an internal check-up.

Troubleshooting Common Issues with Apex DoubleTap Shifters

Even the best components can experience issues from time to time. Below are some common issues with the SRAM Apex DoubleTap shifters and how to fix them:

Shifting Hesitation or Delay

If your shifters feel sluggish, it may be due to improper cable tension or a buildup of dirt. Check the cable tension and ensure the shifter mechanism is clean and lubricated. If hesitation persists, inspect the derailleur for alignment issues.

Unwanted Gear Skipping

Gear skipping can occur if the derailleur is misaligned or if the cable tension is too high or low. Adjust the tension using the barrel adjuster and realign the derailleur if necessary. Make sure the cassette is clean and free from debris.

DoubleTap Lever Issues

If the DoubleTap lever feels unresponsive or sticky, the internal mechanism may need lubrication. In some cases, a thorough inspection of the shifter internals may be necessary.

Conclusion

The SRAM Apex DoubleTap shifters are a fantastic addition to any road bike, offering smooth and reliable shifting performance. By following the proper installation, adjustment, and maintenance procedures outlined in this guide, you can ensure that your shifters stay in top condition for years to come. Regular cleaning, lubrication, and cable adjustments are key to maintaining optimal performance and extending the life of your shifters.