Brake Discs - Front - 12 Groove - GR86, GT86 & BRZBlack Diamond 12 Groove Brake Discs Front 294 x 24mm Note: Price is for 1 pair of discs Black Diamond's 12 Groove range offer improved response and greater friction, the brake discs are heat treated to provide you with awesome braking performance. All brake discs feature black phosphate coatings which will wear off on the friction surface. These award winning brake discs are made to the most exacting standards using computer aided design and
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