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World Rugby Handbook

SCHEDULE 2 REGULATION 12 Materials Materials used in the studs/cleats should be such that they do not give rise to hazards as a result of mechanisms such as abrasion or impacts in wear; or through any other form of damage or deterioration. Materials used in replaceable studs/cleats should be capable of repeated fixing and removal without creating a hazard. Nylon has been found previously not to be a suitable material due to its propensity to burring. Shape and Dimensions Stud/cleat length shall be no greater than 21 mm (see Law 4). Studs/cleats complying with the design and dimensions shown in Figure 1 should give satisfactory performance. The shape and dimensions of other stud/cleat designs should be such that they present a no greater risk of injury to another player than the stud/cleat shown in figure 1. Tests A and B can be used to assess comparative performance. The plan view cross-sectional contact area of the stud/cleat shown in Figure 1 at a plane 2 mm below the tip is 78 mm2. Other studs/cleats having the same or greater contact area might be expected to give satisfactory performance dependent on minimum stud/cleat width in any direction. All edges of the studs/cleats should be finished smooth and rounded to a radius of not less than 1mm. Construction and design The edge profile of the sole unit itself should be rounded with no sharp edges. The studs/cleats should have no external projections on its surface except where text or a logo is desired. In such cases, the embossment details shall be no more than 0.3 mm proud of the surrounding material of the stud. The studs/cleats and their attachment should be capable of withstanding mechanical demands of service, including impacts and abrasive wear, without becoming damaged and creating a potential hazard. Performance can be assessed by means of tests C, D and E. In the case of studs/cleats incorporating a spigot or similar, it is recommended that: (a) when the attachment spigot is of a different material from the stud/cleat, a clearly visible warning should become evident when the stud/cleat has worn down to a length that gives a minimum of 2 mm cover to the end of the spigot. (b) Any flutes or other recesses for the fixing tool, should not extend nearer to the tip of the stud/cleat than the clearly visible warning mark. Replaceable studs/cleats should be designed in such a way that they can be fitted by a method that does not damage the stud/cleat and thereby introduce a cutting hazard or any other hazard. Last update: 14 January, 2015 216


World Rugby Handbook
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