how to install mountain bike shifters

How to Install Mountain Bike Shifters A Step-by-Step Guide

Installing mountain bike shifters can seem intimidating for those new to bike maintenance, but with the right tools and a clear understanding of the process, it’s a manageable task. Whether you're upgrading your existing shifters or replacing a faulty unit, following these steps will ensure a smooth installation.

Tools and Materials Needed

Before you begin the installation, gather the necessary tools and materials

1. New Shifters Ensure that you have the correct type for your bike (e.g., trigger, thumb, or twist shifters). 2. Allen Wrenches Commonly needed sizes are 4mm and 5mm. 3. Screwdrivers Both Phillips and flathead types may be required. 4. Cable Cutters These are essential for trimming control cables. 5. New Shift Cables It’s often best to replace the cables when changing shifters. 6. Bike Stand (optional) A bike stand can make the process easier by providing stability.

Step 1 Remove the Old Shifters

1. Prepare Your Bike If possible, place your bike in a bike stand to keep it steady. Shift to the smallest chainring and the smallest rear cog to relieve tension on the cables. 2. Disconnect the Cables Locate the cable anchorage points on the shifter and use your screwdriver or Allen wrench to release the cables. Make sure to note how the cables were threaded for easy installation later.

3. Remove the Shifters Depending on the type of shifter, you will typically find bolts holding the shifters in place on the handlebars. Use the appropriate Allen wrench to unscrew them. Carefully slide the shifters off the handlebars.

Step 2 Install the New Shifters

1. Attach the New Shifters Position the new shifters where the old ones were mounted. Align them so they are comfortable to reach while riding. Secure them with the bolts you removed earlier. Make sure they are tightened properly but avoid overtightening to prevent damage to the handlebars.

2. Install New Cables Feed the new shift cables through the shifter's cable housing. If you are unsure how to do this, refer to the manufacturer’s instructions as different shifters may have different routing requirements. Ensure the cables are seated properly in the shifter mechanism.

3. Thread the Cables Run the shift cables down to the derailleur, ensuring they follow the proper cable path without bends or kinks. If you're using housing, socket it into place where necessary.

Step 3 Adjust the Derailleurs

1. Connect the Cables to the Derailleurs Depending on your drivetrain setup, attach the cables to the front and rear derailleurs as per the manufacturer’s guidelines. Ensure the cables are not too tight or too loose.

2. Make Adjustments After connecting the cables, you might need to adjust the limit screws on the derailleurs to ensure that the chain shifts smoothly across all gears. Shift through all the gears to check for misalignment or skipping.

Step 4 Test Your Shifters

1. Final Checks Before taking your bike for a ride, double-check that all bolts are tightened, and the cables are secured correctly.

2. Test Ride Go for a short ride, shifting through all gears. Pay attention to the smoothness of the shifts and any sounds that may indicate problems.

Conclusion

Installing mountain bike shifters is a great way to enhance your cycling experience. With a little patience and attention to detail, you can do the installation yourself, saving time and potentially money. Regular maintenance and timely replacements ensure that your bike stays in top shape, ready for your next adventure on the trails. Remember, if you ever feel unsure, don’t hesitate to consult your local bike shop for assistance!