1. Product Overview
The Action Seatpost Binder Bolt 22mm CRMO is a durable component designed for securing bicycle seatposts. This bolt features a specific design with a recessed nut and a keyed tab, which is crucial for proper installation in compatible seatpost binder lugs. It is constructed from Chromoly Steel, ensuring strength and longevity for reliable performance.

Image 1.1: The Action Seatpost Binder Bolt 22mm CRMO. This image displays the chrome-plated bolt with its distinctive recessed nut and the keyed tab designed to fit into a corresponding notch in the bicycle frame's seatpost binder lug.
2. Safety Information
- Always ensure the correct size and type of bolt is used for your bicycle frame. This bolt is designed for seatpost binder lugs with a corresponding keyed notch.
- Do not overtighten the binder bolt. Overtorquing can lead to damage to the bolt, the seatpost, or the bicycle frame, potentially causing component failure.
- Use appropriate tools. A 5mm hex wrench is required for installation and adjustment.
- Regularly inspect the bolt and surrounding components for signs of wear, corrosion, or damage. Replace immediately if any issues are detected.
- If your seatpost is slipping, consider using a carbon assembly compound (e.g., Tacx Carbon Assembly Compound) on the seatpost surface before tightening the bolt, rather than excessively tightening the bolt.
3. Setup and Installation
- Verify Compatibility: Before installation, confirm that your bicycle frame's seatpost binder lug has a keyed notch that aligns with the tab on the Action Seatpost Binder Bolt. This bolt is typically suitable for lugs with a diameter between 22mm and 24mm. If your frame does not have this notch, this bolt may not be suitable and could cause damage.
- Prepare Components: Ensure the seatpost and the inside of the seat tube are clean and free of debris. If experiencing seatpost slippage, apply a thin layer of carbon assembly compound to the seatpost surface that will be inside the frame.
- Insert Seatpost: Insert the seatpost into the bicycle frame's seat tube to the desired height.
- Position Bolt: Insert the Action Seatpost Binder Bolt through the seatpost binder lug. Ensure the keyed tab on the bolt aligns and seats properly into the corresponding notch in the frame's lug.
- Tighten Bolt: Using a 5mm hex wrench, tighten the bolt. Due to the keyed tab, you will typically only need to apply torque from one side. Tighten until the seatpost is securely held in place and does not slip. Avoid overtorquing. Refer to your bicycle frame or seatpost manufacturer's recommended torque specifications if available.
- Final Check: After tightening, attempt to rotate and push/pull the seatpost to ensure it is firmly secured.
4. Operating the Binder Bolt
The Action Seatpost Binder Bolt is designed for simple operation. Once installed, adjustments to seatpost height are made by loosening the bolt with a 5mm hex wrench, adjusting the seatpost to the new desired height, and then re-tightening the bolt. The keyed design allows for single-sided wrenching, simplifying the adjustment process.
- To loosen: Insert a 5mm hex wrench into the hex head of the bolt and turn counter-clockwise.
- To tighten: Insert a 5mm hex wrench into the hex head of the bolt and turn clockwise until the seatpost is secure.
5. Maintenance
- Cleaning: Periodically clean the bolt and the seatpost binder area to remove dirt, grit, and old grease. Use a clean cloth and a mild degreaser if necessary.
- Inspection: Regularly inspect the bolt for signs of wear, such as stripped threads, bending, or corrosion. Check the recessed nut for any deformation.
- Lubrication: A thin layer of grease can be applied to the bolt threads to ensure smooth operation and prevent seizing, unless using a carbon assembly compound on the seatpost itself, in which case ensure no grease contaminates the seatpost-frame interface.
- Torque Check: Periodically check the tightness of the bolt to ensure the seatpost remains secure. Do not exceed recommended torque values.
6. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Bolt does not fit or tighten properly. | Bicycle frame's seatpost binder lug lacks the required keyed notch; incorrect bolt diameter. | Verify your frame has a keyed notch for the bolt's tab. Measure your seat binder lug to ensure it is within the 22mm-24mm range. This bolt is not universal. |
| Seatpost slips even after tightening the bolt. | Insufficient torque; dirty seatpost/seat tube; lack of friction compound; worn bolt. | Ensure the bolt is tightened to the correct torque. Clean the seatpost and seat tube. Apply carbon assembly compound to the seatpost. Inspect the bolt for damage and replace if necessary. |
| Bolt sheared or stripped threads. | Overtorquing; cross-threading during installation; material fatigue. | Replace the bolt immediately. Always ensure proper alignment before tightening and avoid exceeding recommended torque specifications. |
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | Action |
| Model Name | SEATPOST ACTION BINDER BOLT 22MM CRMO |
| ASIN | B001CJHAMY |
| Material | Alloy Steel, Chromoly Steel |
| Thread Size | M6 |
| Manufacturer Grade | Heavy-duty |
| Head Style | Round, Button |
| Fastener Type | Flange Bolt |
| Item Diameter | 22 Millimeters |
| Item Hardness | Grade 8.8 |
| Manufacturer | ACTION |
8. Warranty Information
Specific warranty details for the Action Seatpost Binder Bolt 22mm CRMO are not provided in this manual. For information regarding product warranty, please contact the manufacturer, Action, or the retailer from whom the product was purchased.
9. Customer Support
For technical assistance, questions about product compatibility, or other support inquiries, please reach out to the manufacturer, Action. Contact information may be available on their official website or through your product retailer.





