SHIMANO CD-EM800 Chain Device Installation Guide
- June 15, 2024
- Shimano
Table of Contents
SHIMANO CD-EM800 Chain Device
Product Information
Specifications
- Product Name: Chain Device
- Model: CD-EM800
- Item Number: 1 2 3 4 5 6 7 8 9
- Shimano Code Numbers: Y0N398010, Y7HC00064, Y0N300040, Y0N300030, Y0N398020, Y0N39801T, Y0N39802T, Y0N398030, Y0N39803T
Description
The Chain Device CD-EM800 is designed to provide better chain retention and
prevent chains from dropping off during aggressive riding. It consists of
various components including guide units, fixing screws, spacers, back plate,
and guide fixing nut unit. These components work together to ensure a secure
and stable chain engagement.
Product Usage Instructions
Installation
- Start by removing the existing chainring from your bike’s crankset.
- Place the Chain Device CD-EM800 on the frame’s chainstay or seat tube, aligning it with the chainring.
- Use the appropriate fixing screws (Y0N398010, Y7HC00064, Y0N300040, Y0N300030) to secure the guide unit and plate to the frame.
- Attach the spacer (CL56.5) between the back plate and the frame for proper alignment.
- Secure the guide fixing screw (Y0N398020) to fasten the guide to the back plate.
- For additional stability, use the spacer (CL55) and fix it with the guide fixing screw (Y0N39801T).
- Attach the guide fixing nut unit (Y0N39802T) to ensure a secure fit.
- Finally, fasten the guide fixing screw (Y0N398030) to complete the installation process.
Maintenance
To ensure optimal performance and longevity of the Chain Device CD-EM800,
regular maintenance is recommended:
- Check for any loose screws or components and tighten them if necessary.
- Clean the Chain Device regularly with a soft brush or cloth to remove dirt and debris.
- Inspect the chain engagement and adjust if needed to ensure proper alignment.
- Apply a small amount of lubricant to the moving parts of the Chain Device to reduce friction.
FAQ
-
Can I use the Chain Device CD-EM800 with any bike?
The Chain Device CD-EM800 is compatible with most mountain bikes and can be installed on frames with suitable mounting points. -
How does the Chain Device prevent chain drops?
The Chain Device features a guide unit and a secure fixing system that keeps the chain in place, preventing it from dropping off during aggressive riding or rough terrains. -
Can I adjust the Chain Device for different chainring sizes?
Yes, you can use different spacers (CL56.5, CL55) to adjust the Chain Device CD-EM800 for different chainring sizes and achieve proper alignment. -
Is the Chain Device suitable for single or multiple chainring setups?
The Chain Device CD-EM800 is designed for single chainring setups and provides optimal chain retention for such configurations. -
Is the Chain Device compatible with other Shimano components?
Yes, the Chain Device CD-EM800 is designed to work seamlessly with other Shimano drivetrain components and can be integrated into your existing setup.
Chain Device CD-EM800
| ITEM NO. | SHIMANO CODE NO. | DESCRIPTION |
|---|---|---|
| 1 | Y0N398010 | Guide unit |
| 2 | Y7HC00064 | Plate fixing screw |
| 3 | Y0N300040 | Guide fixing screw CL56.5 |
| 4 | Y0N300030 | Spacer CL56.5 |
| 5 | Y0N398020 | Back plate |
| * 6 | Y0N39801T | Guide fixing screw CL55 |
| * 7 | Y0N39802T | Spacer CL55 |
| * 8 | Y0N398030 | Guide fixing nut unit |
| * 9 | Y0N39803T | Guide fixing screw CL53 |
- Sep.-2022-4686B
- © Shimano Inc. I
- Specifications are subject to change without notice.