First Impressions: Mobius X8 Knee Braces

Mobius X8 Knee Braces

I’m with MX Locker, and I want to share why the Mobius X8 has been my go-to knee brace for the last several years. After tearing my ACL, I went looking for maximum protection and landed on the Mobius X8. Below I break down what I like, where it could improve, and whether it’s worth the investment for riders who want serious knee protection.

Why I Chose the Mobius X8

My decision came after a pretty major injury — I tore my ACL about five or six years ago while riding. After surgery I was focused on preventing another injury, especially hyperextension. The standout feature that sold me on the X8 is the interchangeable patella insert. You can swap couplings to change lockout points, and I chose a larger insert to reduce hyperextension and provide extra coverage when the brace is fully open.

Design, Fit, and Comfort

The X8 is built for protection first. That means it’s on the bulkier side compared to some other braces. In certain gear setups I notice it fits a bit tighter, which is something I’d like to see slimmed down if possible. That said, the trade-off is obvious: more material and structure equals more protection.

• Pros: Excellent protection and multiple patella lockout options.
• Cons: Bulkier than some braces; can feel tighter in certain gear lines.

BOA System and Strapping — Fast, Secure, Repeatable

One of my favorite functional features is the BOA system on the back. Pull the lever and the rear section releases; twist the dial to tighten it back up. Along with three additional straps, the BOA gives you a super secure fit that’s quick to dial in and consistent every time you put the brace on.

On the Bike: It Stays Put

After years of riding in different braces, one thing that really impresses me about the X8 is that it never slides down. I don’t find myself constantly pulling the brace up between motos — it stays put, which directly improves riding comfort and confidence on the bike.

"One thing that I really do like is it never falls down."

Durability and Maintenance

Can the X8 pass the test of time? For me, absolutely. My braces are over five years old. I’ve worn them three to four days a week for the last five years with zero functional issues. No replacement straps, no broken parts — just occasional rinses when they get sweaty or muddy. They’re tough, and I’d call them bomb-proof.

Cost, Parts, and Value

Expect to invest roughly $500–$600 for a good pair of braces like the Mobius X8. For that price you get a brace that will hold up, protect you, and comes with support if you ever need replacement parts. Mobius offers replacement straps, BOA components, cables, and other parts, so long-term maintenance is straightforward.

Who the Mobius X8 Is For

• Riders coming off ACL or other serious knee surgery who want maximum protection.
• Motocross riders who ride frequently and need a durable, reliable brace.
• Anyone willing to trade a bit of bulk for higher protection and a secure fit.

Final Thoughts

If you need max protection and a brace that will last, the Mobius X8 is a top contender. It’s durable, secure, and designed to prevent hyperextension with customizable patella lockout options. It’s not the lightest or slimmest brace out there, but for me that added bulk is worth the peace of mind.

Consider the Mobius X8 for your next E-brace purchase — especially if protection and reliability are your priorities. Find these braces on MX Locker and check out replacement parts directly from Mobius if you ever need them.

Have you tried the Mobius X8?

Drop your thoughts and experiences in the comments and let me know how they held up for you.