Spyderco Manix Spring Kit - Ceramic Ball - Light Spring

Don't wait 02/20/2026
By M Bell
Significant improvement to the function of the knife!
Easy to install.
Now I have 2 very fidget friendly Manix 2 knives!
I highly recommend this kit.

Good, but not for me 02/09/2026
By Jose Gonzalez
The spring is too light for me. The blade does not have enough tension in the closed position. I did like how easy it was to operate the ball cage but didn’t like the blade tension when closed. I have the Manix 2 Salt and that already comes with a ceramic ball so I could not use that either. The quality on this is good and if you are looking for a real easy open and a lot easier pull on the ball cage this is perfect for you.

Essential Upgrade 11/30/2025
By Matthew Marek
This kit is excellent. The lighter spring allows for easier flick openings. Disengaging the lock is also much smoother; while I had to grab both sides of the cage before, I can now pull it back with either the thumb or the finger only. Installation is a breeze with a good Torx driver. If you are frustrated by the action of your new Manix2, give this inexpensive kit a try first. It makes a world of difference.

Great Upgrade 10/19/2025
By Dave Duxstad
These changed my Manix2 to a smooth operator
Great upgrade.

Manix light spring 08/30/2025
By Allen Thomas
Works like a champ! Totally transformed my three Manix knives to being among my favorites.

It Works 07/24/2025
By Erin D
The light spring kit works. My manix 2 & dodo are much easier to deploy now. My thumb and finger pads are thanking me.

Awesome as always 07/16/2025
By Michael Cassani
This is the sixth set I’ve installed, always consistent and smooth. Excellent quality and so far has survived a lot of use and fidgeting.

Improvement 07/09/2025
By brian sullivan
The spring and bearing worked exactly like I'd hoped it would. My Manix is perfect now.

Nice modifications 06/28/2025
By jsk
Lost my stock spring during a recent teardown (predictably, in retrospect). But was never happy with its tension. Crazy hard and uncomfortable to operate.

But these replacements were like getting a new and improved Manix 2 that I will actually carry and use. Super smooth bearing and easy spring operation, but still plenty of tension to keep closed in the pocket. Very pleased with these modifications -- definitely improved my knife.

Works well - Spring too light 04/24/2025
By Skyler
Wasn't too bad to put in, I followed along a couple of videos on YouTube. The bearing is nice, the spring was too light so I stuck with the manufacturer spring