SwishTi Titanium Road Bicycle Oversized Pulley Wheel Cage for 11s Sram eTap use

SwishTi Titanium Road Bicycle OverSized Pulley Wheel Cage   TITANIUM CAGE    Titanium is a strong and lightweight refractory metal.   Titanium are critical to the aerospace industry, while also being used in medical, chemical and military hardware, and sporting equipment.Aerospace applications account for 80% of titanium consumption, while 20% of the metal is used in armor, medical hardware, and consumer goods.Alloys containing titanium are known for their high strength, low weight, and exceptional corrosion resistance.   Despite being as strong as steel, titanium is about 40% lighter in weight.   NARROW-WIDE TEETH   The term "narrow wide" describes the shape and profile of the individual teeth driving the chain.  Each tooth alternates thickness, narrow wide narrow wide, all the way around the pulley.  With an old school traditional pulley, all the teeth would be considered narrow with small differences in thickness between brands.  When looking at your chain, yo