• 30.9mm Dropper Post Shaft Clamp - Shockwave Parts
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Shockwave Parts

30.9mm Dropper Post Shaft Clamp | Straight/Angled

30.9mm Dropper Post Shaft Clamp | Straight/Angled

$29.00 CAD
$29.00 CAD
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Which version?

30.9 mm Dropper Post Shaft Clamp Tool

Made for 30.9 mm dropper shafts, one of the most common post standards. This clamp ensures stable, non-damaging retention in a bench vise while you service cartridges, heads, or actuator systems.

Available in two versions at the same price: straight or angled 35°. Both use the same 360° clamping surface and hold identically, the only difference is how the post sits relative to your vise.

Which version should you pick?

Straight: best if you have a big wide vise where you can clamp off to the side and let the post hang past the edge.

Angled 35°: best if you have a small vise, or one with a wide bottom casting that gets in the way of long straight parts. The angle sends the post off to the side so it clears the center of the vise instead of running into it.
Why You Need This
  • Dropper shafts spin freely once removed from the frame, clamping is essential for service.
  • Cartridges and head assemblies are often factory-tight and require a secure hold to loosen safely.
  • Provides full 360° contact for reliable grip without crushing or marking the surface.
  • Whichever version you choose, the goal is the same: hold the post solid without fighting your vise for room.
⚠️ Warning

Even a single grain of dirt can scratch anodizing. Never clamp with insane force, just clean it well with isopropyl alcohol if it slips. Always ensure full surface contact before applying torque.

Never clamp over the collar, actuator, or cable entry.

Angled version: set it in the jaws with the tilt running clear of the vise center before you close it, so you are not repositioning under load.

Compatibility
  • Most 30.9 mm round dropper posts, including Fox Transfer, RockShox Reverb, OneUp V2, PNW Loam/Rainier, BikeYoke Revive, KS Lev, and more.

Fitment is identical on both the straight and angled versions — same 30.9 mm bore, same posts.

Disclaimer

Always clean the shaft, wrap in a single layer of paper towel, and follow proper clamping procedures. See our full Terms of Service.

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