The Shimano SM-SH12 [paid link] pedals are a popular choice for cyclists seeking efficient power transfer and stability. Known for their durability and compatibility with Shimano’s SPD-SL system, these pedals are a great option for road cyclists. To ensure that your SM-SH12 [paid link] pedals perform optimally, it’s important to properly install, adjust, and maintain them. This guide will walk you through each step in the process.
Installation of the Shimano SM-SH12 Pedals
Installing the Shimano SM-SH12 [paid link] pedals is a straightforward process, but attention to detail is necessary to ensure the pedals are securely attached and perform at their best.
Tools Required:
- Pedal wrench [paid link] or 15mm spanner
- Grease (or anti-seize compound)
- Torque wrench [paid link] (optional but recommended)
Step-by-Step Installation:
- Prepare the Pedals:
Before installing the pedals, apply a small amount of grease or anti-seize compound to the pedal threads. This helps prevent corrosion and ensures easier removal in the future. - Determine Left and Right Pedals:
Shimano SM-SH12 pedals are marked with “L” and “R” to indicate the left and right pedals. It’s crucial to match the correct pedal with the corresponding crank arm. - Install the Right Pedal:
- Insert the right pedal into the right crank arm (marked “R”).
- Turn the pedal clockwise by hand to start threading it into the crank arm.
- Once hand-tight, use a pedal wrench [paid link] or 15mm spanner to tighten the pedal. Be sure not to overtighten, as this could damage the threads.
- Install the Left Pedal:
- Insert the left pedal into the left crank arm (marked “L”).
- Unlike the right pedal, the left pedal has a reverse thread. Turn it counterclockwise by hand to begin threading it into the crank arm.
- Tighten the left pedal using the pedal wrench [paid link] or 15mm spanner in the same manner as the right pedal.
- Final Tightening:
- After both pedals are installed, use the pedal wrench to give them a final, firm tightening.
- If available, use a torque wrench [paid link] to tighten the pedals to the manufacturer’s recommended torque setting (usually around 35-40Nm).
Adjusting the Shimano SM-SH12 Pedals
Once the pedals are installed, proper adjustment is essential for comfort, performance, and safety. The SM-SH12 pedals offer adjustable float and release tension, which can be customized to suit your riding style.
Adjusting Float:
The float refers to the amount of lateral movement allowed between the pedal and the shoe. The SM-SH12 pedal system offers a 6-degree float, which is ideal for most cyclists. However, you can adjust this float by changing the angle at which the cleats are positioned on your shoes.
- Loosen Cleat Screws:
Use a 3mm Allen key to loosen the screws securing the cleats to your cycling shoes. - Adjust Cleat Position:
Slide the cleats in the desired direction to increase or decrease float. Typically, a more centered position results in less float, while a more outward position allows for more movement. - Tighten Cleat Screws:
After adjusting the cleats, tighten the screws to secure them in place. Ensure they are tight enough to prevent shifting during use, but be careful not to overtighten and damage the cleat.
Adjusting Release Tension:
Release tension determines how easily the pedal releases from the cleat when you need to dismount. The SM-SH12 pedals have a tension adjustment screw that allows you to set the release tension to your preference.
- Locate the Tension Adjustment Screws:
The tension adjustment screws are located on the inside of the pedal body. These screws control the amount of force required to disengage the cleat. - Increase or Decrease Tension:
- To increase the release tension (making it harder to unclip), turn the screw clockwise.
- To decrease the release tension (making it easier to unclip), turn the screw counterclockwise.
- Test the Adjustment:
After adjusting the tension, clip in and out of the pedals several times to check if the tension feels comfortable. If it’s too difficult or too easy to unclip, make further adjustments.
Maintaining the Shimano SM-SH12 Pedals
Regular maintenance of your Shimano SM-SH12 pedals will ensure they perform efficiently and last longer. Here are some tips on keeping your pedals in top shape.
Cleaning and Lubrication:
- Clean Regularly:
After each ride, wipe the pedals down with a clean, dry cloth to remove dirt and grime. This will prevent build-up, which can cause the pedals to wear prematurely. - Lubricate the Pedal Threads:
Every few months, or whenever you remove the pedals, apply a thin layer of grease to the pedal threads to prevent corrosion and ease future installation or removal. - Inspect the Pedal Mechanism:
Over time, the spring mechanism inside the pedal may wear down. Regularly check for smooth engagement and release. If the mechanism becomes stiff or difficult to use, cleaning and lubricating the pedal might help. If the problem persists, it may be time for a professional service. - Check for Loose Pedals:
Ensure that the pedals remain tight during each ride. Pedals that become loose can damage the threads of your crank arms, so check for any movement periodically.
Servicing Bearings:
Shimano SM-SH12 pedals use sealed bearings, which are low-maintenance. However, if you notice unusual resistance when pedaling, it might indicate that the bearings need attention.
- Check for Resistance:
Spin the pedals by hand to check if they rotate smoothly. If the pedals feel stiff or gritty, the bearings might need to be serviced or replaced. - Professional Maintenance:
If you’re not comfortable servicing the bearings yourself, take your pedals to a professional mechanic who can replace or grease the bearings.
Conclusion
The Shimano SM-SH12 pedals are a fantastic choice for road cyclists, offering excellent power transfer, comfort, and durability. Proper installation, adjustment, and maintenance are essential to get the most out of these pedals. By following the steps outlined in this guide, you can ensure that your pedals perform at their peak for many rides to come.