The Shimano FC-4700 [paid link] crankset is a popular choice for many road cyclists, providing durability and reliable power transfer. However, like all components, if not installed, maintained, or adjusted correctly, it can lead to costly damage to your drivetrain. In this guide, we will cover the most common mistakes made when working with the Shimano FC-4700 [paid link] crankset and how to avoid them to protect your investment and optimize performance.

Improper Installation of the Crankset

One of the most common mistakes when setting up the Shimano FC-4700 [paid link] crankset is improper installation. Whether you’re installing the crankset for the first time or replacing an old one, incorrect installation can cause a variety of issues that affect the overall performance of your bike.

Incorrect Bottom Bracket Selection

The Shimano FC-4700 crankset uses the Hollowtech II system, which requires a compatible bottom bracket. Using an incompatible bottom bracket can lead to poor alignment, difficulty with crankset installation, and even the potential for damaging the bottom bracket or crankset. Be sure to select the correct bottom bracket for your bike frame.

Incorrect Crank Arm Position

When installing the crankset, it is essential to align the crank arms correctly. Misaligning them can cause your pedals to operate inefficiently and result in unwanted friction. Pay close attention to the markings on the crank arms to ensure proper alignment with the chainring.

Over-tightening Crank Arm Bolts

Many cyclists mistakenly over-tighten the crank arm bolts. While it is important to secure the crank arms firmly, over-tightening can cause damage to the threading or even crack the crankset material. Follow Shimano’s torque specifications precisely to avoid stressing the crank arms or bottom bracket.

Poor Chainring Alignment

Chainring alignment is crucial for smooth shifting and proper drivetrain performance. Misalignment can lead to skipped gears, excessive wear on the chain, and inefficient pedaling.

Misaligned Chainring Bolts

Ensure that the chainring bolts are tightened evenly. Uneven tightening can cause the chainring to wobble or shift improperly. This will affect your chain’s engagement with the chainring, leading to inefficient power transfer and wear.

Incorrect Chainring Size

The Shimano FC-4700 is typically used with a 50/34T compact chainring setup. Installing the wrong size chainring, or mixing different models can lead to sub-optimal performance. Always check that the chainring is specifically designed for the FC-4700 model to ensure compatibility and optimal performance.

Failing to Maintain Proper Crank Arm Tightness

Over time, crank arms can become loose due to regular pedaling. Failing to properly maintain the tightness of the crank arm bolts can result in a wobbly crankset, reduced power transfer, and premature wear.

Periodic Checks Are Essential

It’s important to check the crank arm bolts periodically for tightness, especially after the initial installation. If you notice any play or wobble in the crank arms, immediately check the bolts to ensure they are secure.

Using the Wrong Tools for Adjustment

Using inappropriate tools or insufficient torque can damage the crankset or lead to a less secure installation. Always use a torque wrench [paid link] when tightening the crank arm bolts to ensure that the correct pressure is applied.

Neglecting the Maintenance of Bearings

The Hollowtech II system in the Shimano FC-4700 crankset includes bearings that require periodic maintenance. Overlooking bearing care can result in premature wear, poor pedaling efficiency, and a decrease in the overall lifespan of the crankset.

Lack of Regular Lubrication

Bearings need to be lubricated regularly to ensure smooth movement. Failing to apply lubrication can lead to increased friction, heat buildup, and eventual bearing failure. Always use the recommended lubricant for the Shimano FC-4700 to avoid contaminating the bearings.

Failing to Replace Worn Bearings

If you notice any resistance or roughness when turning the crankset, it could be a sign that the bearings are damaged. Continuing to ride with worn-out bearings can lead to further damage to the crankset and bottom bracket. Regularly inspect the bearings for signs of wear, and replace them as needed.

Incorrect Chainline Adjustment

The chainline plays a significant role in the overall efficiency of your drivetrain. An incorrect chainline can cause excessive friction, poor shifting performance, and faster wear on your drivetrain components.

Improper Chainring and Cassette Compatibility

Ensure that your chainring and cassette are compatible to maintain an efficient chainline. The Shimano FC-4700 is designed to work with a wide range of cassettes, but it is important to check for compatibility, especially when upgrading or changing components.

Chainline Misalignment During Installation

When installing the crankset, be sure to align the chainring with the chain’s natural path. Misalignment will result in poor shifting performance, especially under load, and may cause unnecessary wear on both the chain and chainring.

Ignoring Crankset Cleaning

Keeping your Shimano FC-4700 crankset clean is vital for performance and longevity. Dirt and grime buildup can cause friction, leading to power loss and potential damage to components.

Not Cleaning After Each Ride

After every ride, especially in muddy or wet conditions, clean your crankset thoroughly. A buildup of dirt and debris can affect the efficiency of the chainring and pedal engagement, leading to unnecessary strain on the drivetrain.

Using Harsh Cleaning Products

Avoid using harsh chemicals that can damage the anodized finish of the crankset or degrade the lubrication on the bearings. Instead, use a gentle degreaser and a soft brush to clean the crankset.

Not Checking for Crankset Wear

Finally, many cyclists overlook the wear on their crankset, which can compromise the entire drivetrain.

Inspect for Crankset Damage

Periodically check the crankset for cracks, dents, or other signs of wear. If any damage is found, replace the crankset immediately to avoid further damage to other drivetrain components. This is particularly important if you use the bike in demanding conditions, such as during races or long-distance rides.

Conclusion

By avoiding these common mistakes, you can ensure that your Shimano FC-4700 crankset performs at its best and lasts for years. Proper installation, maintenance, and periodic checks are key to preventing costly damage to your drivetrain and maximizing performance. Whether you’re a seasoned cyclist or just starting out, following these tips will help you avoid unnecessary repairs and keep your ride smooth and efficient.