The Shimano FC-3400 [paid link] crankset is a staple in the Tiagra series, offering a reliable and durable option for road cyclists. Whether you’re setting up a new drivetrain or maintaining an existing one, proper installation and regular maintenance are essential for optimal performance. This guide provides a step-by-step approach to installing, adjusting, and maintaining your FC-3400 [paid link] crankset, ensuring a smooth ride and long-lasting durability.

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The Shimano FC-4700 crankset [paid link] is part of the Tiagra 4700 series, offering high efficiency, reliable power transfer, and a durable design for road cyclists. Proper installation and maintenance are crucial for maximizing performance and longevity. This guide will walk you through the installation, adjustment, and maintenance of the FC-4700 [paid link] crankset, ensuring your drivetrain operates smoothly.

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Tools Required (paid links)

• 5mm and 8mm Allen wrenches [paid link]
• Shimano TL-FC16 preload cap tool
• Torque wrench (recommended)
• Bottom bracket tool [paid link] (if installing a new bottom bracket)
• Chain whip and cassette lockring tool [paid link] (for drivetrain inspection)
• Degreaser and chain lubricant
• Clean rag and brush for maintenance

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Step-by-Step Installation of the Shimano FC-4700 Crankset

1. Preparing the Frame and Bottom Bracket

Before installing the crankset, ensure the bottom bracket (BB) is compatible and properly installed. The Shimano FC-4700 [paid link] crankset is designed for a Hollowtech II bottom bracket, which requires a 68mm English-threaded (BSA) or press-fit BB86 bottom bracket.

• If the bottom bracket is already installed, clean the threads and shell with a degreaser.
• If installing a new bottom bracket, use a bottom bracket tool [paid link] to tighten it to the manufacturer’s torque specification (usually 35-50 Nm for threaded BBs).

2. Installing the Right Crank Arm and Chainrings

• Apply a small amount of grease to the bottom bracket spindle for smooth installation and to prevent corrosion.
• Slide the right crank arm (with chainrings attached) onto the spindle, ensuring it is fully seated against the bottom bracket.

3. Attaching the Left Crank Arm

• Align the left crank arm at 180° opposite to the right crank arm.
• Insert the preload cap into the spindle and tighten it using the Shimano TL-FC16 [paid link] tool. This sets the bearing preload but should not be overtightened—just enough to remove play.
• Tighten the two pinch bolts on the left crank arm to 12-14 Nm using a torque wrench [paid link].

4. Checking for Play and Smoothness

• Spin the cranks and check for smooth rotation without excessive resistance.
• Hold the cranks and try to wiggle them side to side—there should be no lateral movement.
• If movement is present, recheck the preload cap and crank arm bolts.

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Adjusting the Shimano FC-4700 Crankset for Optimal Performance

1. Chainline and Front Derailleur Adjustment

To ensure smooth shifting, the front derailleur (FD-4700 [paid link]) must be correctly positioned relative to the FC-4700 crankset:

• The derailleur cage should be 1-3mm above the largest chainring when viewed from the side.
• The cage should be parallel to the chainrings to prevent rubbing.
• Use the high and low limit screws to fine-tune derailleur movement and shifting precision.

2. Crank Bolt Tightness and Bearing Preload

The left crank arm pinch bolts should be tightened evenly to 12-14 Nm. Uneven tightening can lead to premature wear or play in the crankset.

• If excessive drag is present when spinning the cranks, slightly loosen the preload cap and retighten the pinch bolts.
• If the cranks feel loose or wobbly, retighten the preload cap slightly before re-securing the pinch bolts.

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Maintenance Routine for the Shimano FC-4700 Crankset

1. Cleaning the Crankset and Chainrings

Regular cleaning prevents dirt buildup, which can accelerate wear:

• Use a soft brush and degreaser to clean the chainrings, crank arms, and bottom bracket area.
• Wipe everything with a dry rag, then apply lubricant to the chain and moving parts.

2. Inspecting for Wear and Damage

• Check the chainring teeth for wear or hooked shapes. Replace if they show excessive wear.
• Ensure the crank arms are free of cracks or stress marks, especially if you’ve had a crash.
• Inspect the bottom bracket bearings for smooth operation. If roughness or noise is present, replace them.

3. Lubrication and Preventing Creaks

• Apply anti-seize grease to the bottom bracket spindle and crank arm interfaces to prevent creaking.
• Tighten all bolts to the correct torque specifications.

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Frequently Asked Questions

1. Can I use the Shimano FC-4700 crankset with an 11-speed drivetrain?

No, the FC-4700 crankset is specifically designed for Shimano 10-speed Tiagra drivetrains. Using it with 11-speed components can cause shifting issues due to chainline differences.

2. How often should I service my FC-4700 crankset?

• Clean and inspect it every 500-1,000 km.
• Replace the bottom bracket bearings approximately every 5,000-10,000 km, depending on riding conditions.

3. My FC-4700 crankset is creaking. What should I do?

• Check and re-torque the left crank arm bolts.
• Apply grease to the spindle and bottom bracket shell.
• Inspect the bottom bracket bearings for wear.

4. What bottom bracket is compatible with the FC-4700 crankset?

The FC-4700 crankset uses Shimano Hollowtech II bottom brackets, such as SM-BBR60 [paid link] (threaded) or BB-RS500 [paid link] (press-fit).

5. How do I know if my FC-4700 crankset is worn out?

Look for hooked teeth on the chainrings, excessive side-to-side movement, and rough bottom bracket bearings.

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Conclusion

The Shimano FC-4700 crankset is a reliable and efficient choice for road cyclists. By following this installation, adjustment, and maintenance guide, you’ll ensure optimal performance and extend the lifespan of your crankset.

The Shimano Tiagra FC-4600 [paid link] Crankset is a reliable, entry-level [paid link] road bike crankset designed for smooth performance and durability. Whether you’re upgrading your bike, replacing a worn crankset, or simply maintaining your drivetrain, proper installation and care are essential for longevity and efficiency.

Continue reading “How to Install, Adjust, and Maintain the Shimano Tiagra FC-4600 Crankset”