Important Safety Warning

Always depressurize air and damper circuits before disassembly. If your shock or fork is still pressurized, removing the eyelet, sealhead or opening the damper in general can cause injury or damage.

12mm Shaft Clamp

Designed for 12mm damper shafts, a size found on some older or less common coil shocks. Not suitable for most fork dampers or modern air shocks.

Product photo shows the DHX2 3/8 clamp as an example. Actual 12mm version may differ in appearance.

What It Does

This clamp allows you to safely hold 12mm damper shafts in a bench vise for service. Its useful for removing the eyelet, main piston, rebound assembly, or any shaft-mounted component, when used with proper setup technique.

• Fits: Older EXT V3 shocks
• Fits: Older EXT E-Storia (newer versions use 14mm)
• Fits: FAST Fenix Coil (some models)
• Note: Some e-tuned variants may use 14mm, verify with calipers
• Be carefull, some shocks have 12.7mm shafts and it might look like it fits but you will damage the clamp.

Tip: If the clamp doesnt seat properly or the shaft spins under pressure, double-check the diameter, some newer shocks in this category have switched to 14mm shafts.

Setup Instructions

• Clean the shaft thoroughly with isopropyl alcohol,repeat until fully degreased
• Wrap the shaft with a dry paper towel to maximize grip
• Clamp with even vise pressure,do not overtighten
• Heat Loctited parts, EXT often uses strong threadlocker on shaft interfaces

Read the full shaft clamp usage manual

Match Your Torque: Use our luggage scale torque calculator to estimate proper torque on eyelets and pistons.

Reminder: Improper cleaning, oily shafts, or using the wrong clamp size will lead to slippage and clamp damage. If it doesnt fit easily, double-check your shaft diameter and ensure the clamp is fully seated.

Disclaimer

These clamps are for home mechanics only. Improper use can cause shaft or clamp damage. Always follow proper technique. By purchasing this product, you agree to our terms of service.