According to the Spec Miata rules in both SCCA and NASA all "Convertible tops and attaching hardware shall be completely removed. Cars may compete with the Mazda factory detachable hard top in place (latches shall be replaced with positive fasteners)". These SP TOPP Brackets are the "positive fasteners" you are looking for to secure your hardtop safely and legally. We use them on our Spec Miata racecars and highly recommend them. Here are the specs:
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Reviewed by: REMI01/14/2012 06:35PM
Product ownership: Less than 1 month
Purchased from: 5X Racing
Comments:
Lightweight and secure, these brackets are perfect for securing the hardtop for both race and street.