When it comes to motocross, safety gear isn’t just an accessory—it’s a necessity. One of the most vulnerable joints for motocross riders is the knee. Whether you're launching off a jump or navigating rough terrain, your knees absorb immense force and risk ligament injuries. That’s why many elite riders rely on the Ossur CTi Knee Brace—a premium, medical-grade knee protection solution. Designed using high-performance materials and tested in the most demanding conditions, this brace combines medical functionality with athletic durability. In this guide, we take an in-depth look at why the Ossur CTi is considered the gold standard in knee protection for motocross riders.

What Makes the Ossur CTi a Top Choice for Motocross Riders?

The Ossur CTi knee brace has built a solid reputation among motocross professionals and enthusiasts alike. What sets it apart is its medical-grade quality combined with a sports-specific design. Originally developed for those recovering from serious ligament injuries like ACL or MCL tears, the brace has found a second home in motocross thanks to its reliable protection and durability.

With a rigid exoskeleton made from carbon composite materials, the CTi offers exceptional knee stabilisation. It also fits comfortably under motocross pants and boots without restricting movement, allowing for both safety and performance. Whether you’re hitting triple jumps or tearing through rough trails, this brace helps minimise your risk of re-injury while maintaining peak mobility.

Key Technical Features of the Ossur CTi Knee Brace

Carbon Composite Frame with Medical-Grade Rigidity

At the core of the CTi’s exceptional performance is its carbon composite frame. This material is used widely in aerospace and high-impact sports gear, and for good reason. It's incredibly strong yet lightweight, offering excellent rigidity without compromising flexibility.

This frame functions as an exoskeleton around your knee, absorbing impact and reducing stress on the ligaments during aggressive movements. In motocross, where hard landings and rapid directional changes are common, this support is invaluable. The frame resists torsional forces, helping to keep the knee aligned and stable even under intense conditions. Riders benefit from reduced fatigue and more confidence on the bike, knowing their brace is working just as hard as they are.

Custom Moulding & Anatomical Fit

One of the standout features of the CTi brace is its custom moulding process. Riders can opt for a completely custom-fitted version, built precisely to match the contour of their leg using 3D scanning and CAD technology. This ensures maximum comfort, stability, and performance.

For those who prefer a faster solution, the off-the-shelf (OTS) versions offer adjustable sizing and flexible fit systems. These models still maintain high anatomical accuracy thanks to their ergonomic shell design and multi-point strap system. The anatomical fit ensures even pressure distribution and eliminates uncomfortable hot spots during long rides. Whether you choose custom or OTS, the CTi brace hugs the leg securely while allowing natural movement—ideal for extended time in the saddle or racing conditions.

Protection Performance for Injured or At-Risk Knees

Proven ACL, PCL, MCL, and LCL Protection

The CTi brace is not just about comfort—it’s a clinically proven medical device. It offers robust protection for all four major knee ligaments: ACL, PCL, MCL, and LCL. Through its rigid frame and AccuTrac® hinge system, it mimics the natural motion of the knee joint while shielding it from harmful rotation and hyperextension.

Motocross riders are particularly susceptible to ACL and MCL injuries during awkward landings or crashes. The CTi reduces these risks by providing dynamic support that limits abnormal movement. Numerous studies and real-world testimonials show that riders using the CTi experience significantly fewer reinjuries, making it an ideal brace for both prevention and rehabilitation.

Suitable for Post-Surgery Recovery and Daily Riding

The Ossur CTi is widely recommended by orthopaedic surgeons and physiotherapists for post-surgical knee support. It’s commonly prescribed following ACL reconstruction or multi-ligament repairs. Riders recovering from surgery can trust the CTi to provide the controlled stability needed during rehabilitation phases.

What makes it unique is its adaptability—not only does it support healing knees, but it also transitions smoothly into daily riding gear. Its low-profile build fits comfortably under motocross gear, making it ideal for both competitive racing and recreational riding. This dual-purpose functionality ensures that once you've recovered, the brace remains a reliable companion on every track, trail, and jump thereafter.

Fit, Adjustability, and Strap System Overview

Fit is everything in a knee brace, and the CTi delivers precision through its innovative strap and liner systems. Both the custom and OTS versions utilise a multi-strap design that secures the brace firmly against the tibia and femur. The strategically placed straps prevent unwanted brace movement, especially during high-impact landings or rapid side-to-side shifts.

Additionally, the brace features Sensil® silicone liners that grip the skin without irritation, reducing the chance of slippage even during intense sweating. For those requiring even more grip, anti-migration liners are available as optional upgrades. The AccuTrac® hinge technology synchronises with your knee's natural motion, ensuring comfort and stability at all times. Whether you're tightening down for a race or adjusting between motos, the CTi makes secure fitment easy and reliable every ride.

Who Should Use the Ossur CTi Knee Brace and Why?

Ideal for Riders with a History of Knee Injuries

Riders who have suffered from ligament injuries like ACL, MCL, or meniscus tears know the value of solid knee protection. The Ossur CTi brace is designed for these exact scenarios. Its medical-grade design offers the necessary support to prevent re-injury, even under the extreme forces encountered in motocross.

Beyond physical protection, it also provides peace of mind. The psychological aspect of returning to motocross post-injury can be daunting. Knowing your knee is supported by a brace trusted by surgeons and pro athletes can ease that anxiety and boost confidence. Whether you’ve had surgery or just want to protect a weak knee, the CTi is your best bet for reliable reinforcement that lets you ride without holding back.

Pro-Level Protection for Serious Competitors

Competitive riders need every advantage they can get, and safety should never be sacrificed. The CTi delivers a level of protection that meets the demands of pro-level racing. From AMA motocross to enduro and FMX events, the CTi is the brace of choice for riders pushing their limits.

It’s built to handle repeated abuse while maintaining a consistent fit and feel. Unlike cheaper braces that can wear down or shift mid-race, the CTi stays locked in and continues performing at the highest level. Its track record among elite riders speaks for itself—this brace isn’t a luxury; it’s an investment in your longevity as a competitor. If your goal is to stay fast, focused, and injury-free, the CTi belongs in your gear bag.

How CTi Compares to Other Premium Braces

CTi vs. Mobius X8 and Pod K8

The Mobius X8 and Pod K8 are respected names in motocross knee protection, but they differ significantly in approach. The X8 uses a continuous cable routing system to limit movement, while the Pod K8 features a polymer hinge. While both offer solid support, neither matches the medical-grade carbon fibre rigidity of the CTi.

The CTi also provides more ligament-specific protection, especially for riders recovering from injuries. Its precise fit and clinical background give it an edge in serious rehabilitation and prevention. For those who need uncompromised ligament support, the CTi remains the more medically trusted option.

CTi vs. Leatt C-Frame and Asterisk Ultra Cell

Leatt’s C-Frame and the Asterisk Ultra Cell offer impressive features, but each comes with trade-offs. The C-Frame provides solid lateral protection but can feel restrictive and has fewer custom-fit options. Asterisk’s Ultra Cell is comfortable and breathable but relies more on padding than structural rigidity.

In contrast, the CTi combines maximum structural support with medical-grade performance. It’s more customisable and has a longer lifespan thanks to its carbon fibre build. While the Leatt and Asterisk are strong contenders, the CTi wins in durability, injury protection, and medical recommendation—especially for those with a clinical need for high-level knee bracing.

Pricing, Warranty, and Long-Term Value

The CTi knee brace sits on the premium end of the pricing spectrum, but it’s an investment worth every dollar. The off-the-shelf models typically range from $800 to $1,200 AUD, while the custom versions can exceed $1,500 AUD depending on optional features. However, Ossur backs their braces with generous warranties—often lifetime coverage on the frame and two years on hinges.

Given its dual use as both a rehabilitation and performance tool, the CTi offers long-term value unmatched by cheaper alternatives. Many riders report years of consistent use without performance loss. If you value protection, durability, and peace of mind on the track, the CTi is a brace that pays for itself in injury prevention and riding longevity.

Conclusion: The Industry Standard in MX Knee Protection

For motocross riders who demand the highest standard of protection, the Ossur CTi knee brace delivers. It’s more than just a brace—it’s a medically engineered device trusted by surgeons, physiotherapists, and professional athletes around the world. Whether you’re recovering from a ligament injury or aiming to prevent one, the CTi offers the kind of rigid support and anatomical fit that keeps you riding strong.

Its combination of carbon fibre construction, ligament-specific protection, and pro-level design make it a standout in a crowded market. While it comes at a premium price, the long-term benefits—both in safety and confidence—are hard to put a number on. For those serious about motocross and serious about their knees, the Ossur CTi is not just an option; it’s the benchmark.