Crank Bros Acid 3 Pedals: The 2008 Crank Brothers Acid 3 Pedals are light-weight enduro racing pedals with magnesium and carbon fiber platform. The 2008 Crank Brothers Acid 3 Pedals are constructed of a scm435 chromoly steel spindle, magnesium/carbon fiber platform, 6al/4v titanium wings, 300 series stainless steel spring, and an anodized aluminum end cap. Release angle of 15 or 20 degrees.