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Leatt DBX 4.5 Neck Brace for MTB, BMX

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our part num: B-1015100170

Distinguishing Features

  • Alternative Load Path Technology  - Helps mitigate impact on neck/spine during a crash
  • Helmet Rim Striking Platform Profile - Increased compatibility and protection with a Leatt helmet
  • SureFit Side Hinges - Quick and easy to put on and take off


  • Frame - fiberglass reinforced polyamide chassis, new rigid design by Leatt to improve durability
  • Chest Supports - split design with padding, increased comfort
  • Thoracic Spine Protection - split designed thoracic rear strut and tough rubber insert. for protection and designed to snap off with severe impact to prevent back injury; replaceable
  • Chest Straps - included, more secure fit
  • Adjustability - Two-way adjustability, four sizing spacers and three-angle rear thoracic strut adjustments, fit most body types with ease (adjusting tool included)
  • Padding - injected easy-to-clean foam padding, increased comfort and additional crash impact protection 
  • Range of Motion - front, side tables sit lower than previous models, more flexibility and moveability
  • Body Armor Compatibility - perfect integration with any Leatt Upper Body Armor; compatible with many other types of upper body armor
  • Weight - 700 grams for S/M
  • Suitable for downhill mountain bike, freeride, and BMX racing ONLY (must wear a full face helmet)


The Leatt DBX 4.5 Neck Brace - An Entry Level Commitment to Safety

Here at SportsProtective, we strive to give insight into products that offer excellent protection, even on a more modest budget. With the Leatt 4.5 neck brace, riders with a more limited budget, as well as new riders that aren't so aggressive that they need a more advanced brace, can outfit themselves with industry leading Leatt technology. We think this brace offers all a rider could need to protect themselves or their loved ones, without spending on the extra bells and whistles that come with a higher level Leatt neck brace. It is your entry-level commitment to protection and safety. Matched up with a good quality full face helmet, and now you've got a robust protective package on your head and shoulders. If you're riding downhill or racing BMX, a neck brace is an incredibly important piece of gear to get into your safety gear bag.

Leatt not only created the neck brace category, but they still produce the widest range of braces for downhill / freeride mountain bikers as well as BMX racers.What separates Leatt from other competitors? Simply put, it's Leatt's patented Alternative Load Path Technology. Used on all Leatt neck braces, Alternative Load Path Technology spares your neck and back from absorbing all the energy of a blow. Instead, the neck brace intercepts the impact from the skull by dispersing the force, thus sparing you from a more serious, potentially season-ending neck injury. Working in conjunction with a full face helmet, the neck brace guards against extreme backward-bending of the head (hyper-extension); extreme forward bending of the head (hyperflexion); and over-bending of the head to either side (lateral hyperflexion). Additionally, the neck brace is protective when the chin bar takes the brunt of a face plant and pushes the neck backward (posterior hypertranslation). In certain scenarios, the neck brace can prevent axial loading.

Fit of the Leatt 4.5 is extremely important. If it is not fitted and being worn correctly, the years of technology perfected by Leatt will be mitigated. The 4.5 offers some adjustability to fit most body types. Leatt includes four different size spacers and the tool needed to change them, so the brace can be fit properly without rocking or moving while on. The thoracic rear strut also comes with four different size angle wedges to keep the brace from climbing your back while in use. Lastly, the brace comes equipped with optional chest straps that can help keep it in place during even the most aggressive rides. 

About Leatt

Sometimes it takes a tragedy to create a change. Such was the case in South Africa in 2001 when Dr. Chris Leatt, a medical doctor and motorcycle rider, went to a racetrack with his son who himself had just begun to ride. There, Dr. Leatt witnessed the death of another rider, Alan Selby, from suspected neck injuries. Dr. Leatt was so shaken by the incident that he made it his mission to develop a device that would go a substantial way toward preventing this type of fatal injury in the future. After three years of research, development, and testing, Dr. Leatt introduced his first Leatt-Brace. However, it would be another two years before the Leatt-Brace would make it to market on a large scale. Today, Leatt-Brace is a worldwide leader in neck protection for extreme sports. Dr. Leatt likes to say the Leatt Brace is "a helmet for your neck". Designers and engineers in the Leatt laboratory in South Africa have expanded their reach to high-technology protective armor that meet varying needs of downhill mountain bikers, bmx bikers, and skiers and snowboarders.


Related Items

Leatt Size Chart

Leatt Neck Brace, Body Armor, and Pads Size Charts

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Leatt Neck Brace Size Charts - Look for the Specific Brace Model Below

Leatt DBX 5.5  and DBX 5.5 Jr Neck Braces

Neck Brace Size Chest Circumference
Junior 29.5-32.5in
Adult S/M 32.5-37.0in
Adult L/XL 37.0-49.5in


Leatt DBX 4.5 Neck Brace

Neck Brace Size Chest Circumference
Adult S/M 31.0-37.0in
Adult L/XL 37.0-45.0in


Leatt DBX Comp 4 and DBX Ride 4 Neck Braces

Neck Brace Size Chest Circumference
Adult S/M 26.0-37.0in
Adult L/XL 34.0-43.0in


Leatt Upper Body Armor Size Charts

Leatt 3DF Adult Size Upper Body Armor

Size Chest Circumference
Small/Medium 34-38in
Large/Extra Large 40-44in
XXL 44-48in


Leatt 3DF Youth Size Upper Body Armor

Size Height
Junior Small/Medium 4'5"-4'9" Tall
Junior Large/Extra Large 4'9"-5'3" Tall


Leatt 3DF Knee Guards Size Charts

Measure your knee circumference, with your leg extended out straight.

How to Measure Your Knee for Leatt 3DF Knee Pads

Leatt 3DF Adult Size Knee Guards

Size Knee Circumference
Small/Medium 31-41cm
Large/Extra Large 41-53cm
XXL 53-58cm


Leatt 3DF Youth Size Knee Guards

Size Knee Circumference
Junior 4'5"-4'9" Tall
Kids 4'9"-5'3" Tall


Leatt 3DF Elbow Guards Size Charts

Measure your elbow circumference, with your arm extended.

How to Measure Your Elbows for Leatt 3DF Elbow Guards

Leatt 3DF Adult Size Elbow Guards

Size Elbow Circumference
Small/Medium 22-28cm
Large/Extra Large 28-35cm
XXL 35-41cm


Leatt 3DF Youth Size Elbow Guards

Size Elbow Circumference
Junior 4'5"-4'9" Tall
Kids 4'9"-5'3" Tall


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