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Troy Lee Designs Catalyst X Knee Brace Pair

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Q & A

Have a product related question about fit, features, or functionality? Ask it here.

If you have a question about availability or need immediate assistance, call 1-800-841-2960.

Have large legs, 28 mid thigh and 20 mid calf. Will the 2X fit?
Chad Bennett - September 11, 2018
Thank you for your inquiry Chad. I just went down and measured the straps of this unit. The largest the calf strap will go is just over 22" and the thigh strap can extend to 32". These will fit you perfectly. - Kyle & the Chap Moto Team
Chaparral Motorsports Customer Support - September 12, 2018
Do you have in size M? Is this product discontinued?
Ed - November 7, 2018
Thank you for your inquiry Ed. These Troy Lee Designs Catalyst X Knee Braces have been discontinued and we only have the Small available for sale. Our recommendation for you would be these Leatt C Frame Braces: or our new favorite, the POD K8 braces: - Kyle & the Chap Moto Team
Chaparral Motorsports Customer Support - November 8, 2018
Can u supply replacement pads etc for these in medium?
Daniel shepherd - May 9, 2018
Hello Daniel, thank you for your inquiry. Yes, the full line of replacement parts for Troy Lee Designs Catalyst X Knee Braces are available. It sounds like you are needing TLD SKU: # 550065000
Please call us to order: 1-800-841-2960 - Kyle & the Chap Moto Team
Chaparral Motorsports Customer Support - May 10, 2018
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Troy Lee Designs Catalyst X Knee Brace Pair

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  • This motocross knee brace made of 7075 series aluminum is light, slim and durable
  • 1.6 lb lightweight medical grade knee brace
  • Tibial docking system provides secure tibial control
  • Moldable aluminum frame enables customization
  • Auto conform aluminum core wings adapt to anatomy
  • Integrated PCL strap delivers increased stability
  • Extension stops: 0°, 5°, 10°, 15°, 20°, and 25°
  • Flexion stops: 45°, 60°, 75° and 90°
  • Full coverage patella guard is removable for washing
  • Moisture wicking frame liners, condyle pads and strap pads keep you cool and comfortable
  • Open medial upper and lower shells provide maximum clearance and comfort on the medial aspect of both legs, making it the perfect solution for patients engaging in activities including mountain biking and motocross
  • One year manufacturer's warranty
  • Sold as a pair
  • White/Black
  • C.E. certified

Troy Lee Designs Knee Braces

Above Mid-Patella (in) 14.5 - 17 17 - 19.5 19.5 - 22.5 22.5 - 25.5 25.5 - 30
Mid-Patella (in) 11.5 - 13 13 - 15 15 - 17 17 - 19 19 - 22
Below Mid-Patella (in) 11.5 - 13 13 - 14.5 14.5 - 16.5 16.5 - 18.5 18.5 - 22

General Sizing information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.

Leg Circumference

Measure the circumference 6" above your mid-patella, mid-patella and 6" below mid-patella. Next find a size in the chart that corresponds to your measurements.


Catalyst X
Age & Gender
Model Name for Gear
Catalyst X
Troy Lee Designs

Item Numbers

Details Item Number Availability Store Pickup
Details:White/Black  S Item #TL1241-0108 Availability:In stock: Ready to shipStore Pickup:Available


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