Kibblewhite Black Diamond™ Valve - 20-4170R For Harley Motorcycles 1984-2000 Product Type_Exhaust Systems 490" Intake Duration 226°

490" Intake Duration 226°

43 cm / 4-1/2" Units Pair Riding Style Street

Product Name Rim Style Rolled Edge Model Drift Base Color Black Finish Anodized / Gloss Color/Finish Anodized / Gloss / Black Material 6061-T6 Aluminum Rim Diameter 21" Rim Width 3

Custom rotors allow the use of the stock style '00-'07 calipers

Kibblewhite Black Diamond™ Valve - 20-4170R For Harley Motorcycles 1984-2000 Product Type_Exhaust Systems 490" Intake Duration 226°Features One piece stainless steel, stellite tipped valves impregnated by a special nitrided process with . 002" depth and . 0002" surface buildup to improve wear properties and reduce friction This process provides resistance to corrosion; wears superior to hard chromium and electrolysis nickel plating Lightweight with profiles that provide excellent flow characteristics Compatible with leaded and unleaded fuels and can be run in cast iron and bronze