Leatt-Brace STX RR User Manual

User ManUal

rOaD raCInG neCK BraCe

INDEPENDENTLY TESTED AND CERTIFIED

AS PERSONAL PROTECTIVE EQUIPMENT

Note: The products depicted in this user manual may vary to some degree in product graphics or color.

WarnInG

All motorsports are hazardous.

Participants can suffer severe brain, head, or neck injuries causing permanent paralysis or even death.

A properly tted Leatt-Brace®, worn in conjunction with a full-face helmet, can help reduce the

incidence or severity of neck injuries, but no known safety device can eliminate the physical risks inherent in any motorsport activity.

Read and follow all safety instructions

A Leatt-Brace® is not a substitute for skill or experience. Do not attempt potentially hazardous maneuvers while wearing a Leatt-Brace® that you would not attempt without a brace.

The Leatt-Brace® must be correctly tted to the wearer’s body. Follow the sizing and tment directions in this manual

to insure that your brace ts properly.

Failure to achieve a correct t of the Leatt-Brace® will reduce the effectiveness of the brace and may subject the

wearer to unexpected risks.

A cracked, bent, or deformed Leatt-Brace®, or any Leatt-Brace® worn by a user during an injury-producing accident or fall, should not be used again by anyone. Damage affecting the structural integrity and performance of the brace may not be visible to the naked eye.

Leatt-Brace® STX

The STX RR is a neck brace specically designed for motorcycle road racing.

It is not designed for street use where Leatt®’s STX neck brace is a more appropriate choice.

Table of contents

User Manual Introduction ........................................................ Page 03

•

Test Data ................................................................................. Page 04

•

Leatt-Brace® sizing chart ......................................................... Page 05

•

Correct Fitment ........................................................................ Page 05

•

Adjustment

•

• The Scapula wings ............................................................ Page 07

• Shoulder height adjustment .............................................. Page 09

Back height adjustment ..................................................... Page 10

•

STX Body straps ...................................................................... Page 11

•

Emergency Open ..................................................................... Page 12

•

Proper care and maintenence .................................................. Page 13

•

In the event of a crash .............................................................. Page 14

•

STX RR Exploded view and parts list ....................................... Page15

•

User manual introduction

Welcome to the world of Leatt® and thank you for choosing our product. The Leatt-Brace® you have purchased is based on years of academic research and extensive evaluation of the mechanisms of head and neck injuries. Together with testing in test facilities and via simulation software, the brace has been evaluated using various static and dynamic tests. The Leatt-Brace® is part of the protective equipment ensemble available for use by participants in cycling and motor sports activities

The design rationale behind the Leatt-Brace® is to help bring the head to a controlled stop during an accident/fall. This is achieved by providing a padded rigid structure that helps act as an alternative load path for neck forces. Helmet impacts otherwise transmitted from the helmet to skull and then to the neck are re-directed from the helmet to the brace and then to other body structures. The design of the Leatt-Brace® helps prevent the helmet/head from projecting over the brace and therefore helps prevent a fulcrum action which has been documented in literature pertaining to the use of foam collar devices. The Leatt-Brace® may be worn with most types of motor sport body armor and chest protectors.

The Leatt® STX RR neck brace system helps prevent the following extreme movements:

Hyperextension Hyperexion Lateral

Hyperexion

Posterior

Hypertranslation

Coupled Axial

Hyperexion: Over-bending of the head in forward direction. Hyperextension: Over-bending of the head in rearward direction. Lateral Hyperexion: Over-bending of the head to one side. Posterior Hypertranslation: Extreme movement of head and helmet, rearward on the neck. Coupled Axial Loading: Axial forces acting in combination with other mechanisms.

Leatt® STX RR has been tested against the manufacturer’s specications and EC Type-Examination

certication has been issued by RICOTEST Via Tione, 9 - 37010 Pastrengo (VR) Italy, Notied Body

No. 0498. It is CE marked to denote compliance with the EU Personal Protective Equipment Directive 89/686/EEC.

In addition to certication against the PPE directive, the Leatt-Brace® has also passed a battery of

additional tests compiled by the Notifying Body RICOTEST that includes elements from EN 1621-

2:2003 (the European Standard for Motorcyclists Back Protectors), ISO 20344:2004 to evaluate

Impact resistance in the rear and a RICOTEST internal test protocol me-int-074-00 to evaluate ergonomics, tensile strength and the content and comprehensiveness of the manufacturers information.

All the materials that make up the Leatt-Brace® have passed chemical innocuousness testing as required by the European Standard EN 340:2003 for general requirements of protective clothing.

Please e-mail any comments you might have to info@leatt.com.

The Leatt® STX RR (Figure 1) has been designed to be set up in stages to suit your

requirements. Please follow the tment process carefully. It should take you about 20 minutes to

complete.

Back Assembly

Figure 1

Front Assembly

Scapula wings

Please note: The product shown may vary in colour. Brace components are depicted in

contrasting colours to indicate individual identication.

Test Data

Technical inputs to the development of this product include:

• Eurotype Hybrid III instrumented sled tests (Land Mobility Technologies document No.P/2/00/00431, May 2004)

• BMW Pendulum Testing and Validation Model using Lifemod™ – BMW Test Facilities, Munich,

Germany (2006)

• Innovations at BMW Motorrad in the development of equipment for motorcycle riders to reduce

the risk of injuries based on the example of the Neck Brace System (proceedings of the 6th

International Safety - Environment - Future Conference; Cologne, Germany,

9 – 10 October 2006)

• Side Impact Simulations Using a Validated Pendulum Test Methodology (Leatt® Corporation Biomechanics Division)

• Leatt® Lab Quasi-Static Testing

• Leatt® Lab Destructive Impact Testing

• Leatt® Lab Pendulum Testing

• Detailed Spine Simulation Modeling (LifeMod / ADAMS)

• EN 340:2003 – “Protective clothing – General Requirements”

The rst four test protocols listed assess the ability of the Leatt-Brace® to help reduce forwards and backwards movement of the wearer’s head and neck in a collision, or when impacting the

road surface. Leatt® Lab Quasi-Static Testing includes evaluations of the resistance of the LeattBrace® fastenings to opening in the event of an impact. The chemical content of the materials and components used in the construction of the Leatt-Brace® has been assessed in accordance with the requirements of EN 340:2003.

Leatt-Brace® sizing chart

The sizing chart below is a guide to determine if the STX RR will t your body type. If you are out of the range of the sizing chart or are unsure of your exact t, please contact us, wearing the STX RR with certain protectors could result in a safe t. The sizing chart is based on your height

and chest circumference right below the arms, therefore make sure that you take the correct measurements before utilizing the chart.

Chest circumference

inches

Height

5’1” - 5’4” 156 - 163 STX RR STX RR

5’4” - 5’5” 164 - 166 STX RR STX RR STX RR

5’6” - 5’7” 167 - 169 STX RR STX RR STX RR STX RR

5’7” - 5’8” 170 - 172 STX RR STX RR STX RR STX RR

5’8” - 5’9” 173 - 175 STX RR STX RR STX RR STX RR

5’9” - 5’10” 176 - 178 STX RR STX RR STX RR STX RR

5’10” - 5’11” 179 - 181 STX RR STX RR STX RR STX RR

5’11” - 6’ 181 - 183 STX RR STX RR STX RR STX RR

6’ - 6’1” 183 - 185 STX RR STX RR STX RR

6’1” - 6’3” 185 - 190 STX RR STX RR

6’3” - 6’4” 191 - 195 STX RR

33.9 - 35 35.4 - 37 37.4 - 43.3 43.7 - 45.3

86 - 89 90 - 94 95 - 110 111 - 115

* Chest circumference right below the arms

Correct ﬁtment

* Height

Figure 2a Figure 2b

The folowing is to ensure that your brace is setup correctly, please go through entire section. Fit the brace by pulling it over your head with the scapula wings attached (p7). (Figure 2a) Please ensure that the brace is facing the correct way. (Figure 2b)

The size of the brace should be correct for your body shape and allows for adjustability to ensure correct tment and comfort. (Figure 3a) When correctly adjusted and worn with your helmet, the Leatt-Brace

should allow for a full safe range of a rider’s head and neck movements (i.e. looking up,

looking down and looking side-to-side, such as when performing an over-the-shoulder check); the

Leatt-Brace® and the helmet must come into contact with each other as the full safe range of

normal riding head movement is reached. (Figure 3b)

+ 14 hidden pages

Leatt-Brace STX RR User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual