Introduction
The Shimano TL-FC16 Crank Arm Bolt Tool is specifically designed for the efficient removal and installation of crank arm fixing bolts on Hollowtech II cranksets and compatible bottom brackets. This tool ensures proper torque application and prevents damage to components during maintenance or assembly.
This manual provides essential information for the correct and safe use of your Shimano TL-FC16 tool. Please read it thoroughly before use.
Product Features
- Purpose-Built Design: Engineered specifically for Hollowtech II crank arm fixing bolts.
- Durable Construction: Made from robust plastic material for reliable performance.
- Compact and Lightweight: Weighing only 0.02 pounds, it is easy to handle and store.
- Ergonomic Grip: Designed for comfortable manual operation.
Compatibility
The Shimano TL-FC16 Crank Arm Bolt Tool is compatible with Shimano Hollowtech II cranksets and bottom brackets that utilize a corresponding crank arm fixing bolt. Always verify compatibility with your specific bicycle components before use.
Safety Information
- Always wear appropriate safety gear, such as gloves and eye protection, when performing bicycle maintenance.
- Ensure the bicycle is stable and secured in a work stand before beginning any work.
- Do not apply excessive force beyond what is necessary for tightening or loosening. Over-tightening can damage components.
- Keep the tool clean and free from grease or dirt to maintain a secure grip.
- Store the tool in a dry place away from direct sunlight and extreme temperatures.
Operating Instructions
1. Removing the Crank Arm Fixing Bolt
- Locate the crank arm fixing bolt on the non-drive side crank arm of your Hollowtech II crankset.
- Align the Shimano TL-FC16 tool with the notches on the crank arm fixing bolt.
- Turn the tool counter-clockwise to loosen and remove the bolt. Apply steady, firm pressure.
2. Installing the Crank Arm Fixing Bolt
- Ensure the crank arm is properly seated on the spindle.
- Insert the crank arm fixing bolt into the crank arm.
- Align the Shimano TL-FC16 tool with the notches on the bolt.
- Turn the tool clockwise to tighten the bolt. Tighten until snug, following the manufacturer's recommended torque specifications for your crankset (typically found in your crankset's manual). Do not overtighten.
Visual Guide: Using the Crank Arm Adjusting Cap Tool
This video demonstrates the process of using a bike crank arm adjusting cap tool, which is functionally similar to the Shimano TL-FC16 for removal and installation of crank arm caps.
Maintenance
- After each use, wipe the tool clean with a dry cloth to remove any grease, dirt, or debris.
- Inspect the tool regularly for any signs of wear or damage. If the notches become rounded or the tool is cracked, replace it to prevent damage to your bicycle components.
- Store the tool in a tool box or a designated area to protect it from impacts and loss.
Troubleshooting
- Tool slips on bolt: Ensure the tool is fully engaged with the bolt's notches. The bolt might be overtightened or seized. Apply penetrating oil if necessary and try again with firm, steady pressure. If the bolt is stripped, professional assistance may be required.
- Bolt won't loosen: The bolt may be very tight. Ensure you are turning counter-clockwise. For extremely tight bolts, a longer wrench (if using a socket adapter) or professional help might be needed.
- Damage to tool or bolt: This usually indicates improper alignment or excessive force. Always ensure the tool is correctly seated and apply force gradually.
Specifications
| Brand | SHIMANO |
| Model Name | Crank Arm Tools |
| Item Type Name | KEY REMOVED FOOT BOLT SHIM. TL-FC16 HOLLOW |
| Material | Plastic |
| Item Weight | 0.02 Pounds |
| Size | One Size |
What's in the Box
Your package includes:
- 1 x Shimano TL-FC16 Crank Arm Bolt Tool

Image of the Shimano TL-FC16 Crank Arm Bolt Tool, black in color.
Dimensions

The tool measures approximately 1.7 inches (4 cm) in diameter, as shown in the image.
Warranty and Support
This Shimano TL-FC16 Crank Arm Bolt Tool comes with a Limited Warranty. For specific details regarding warranty coverage, terms, and conditions, please refer to the official Shimano website or contact Shimano customer support directly.
For additional product information, technical support, or to explore other Shimano products, visit the official SHIMANO Store.