Custom Cycle Fork Tubes DLC Black 710071 Custom Cycle Engineering has been manufacturing extension fork tubes for over 30 years. Crafted from DOM 1026 steel tubing that is ordered specially from a tubing mill. Hard Chrome Fork Tubes: Finish is hardened to 55-60 Rockwell for a durable, long lasting corrosion and wear resistance. Show Chrome Fork Tubes: Machined to exact ID specs with a centerless ground outside diameter to O.E.M. specifications. Material is buffed to a mirror finish and the final product is chrome plated for a show chrome finish. Black DLC Fork Tubes: Diamond-Like Coating (DLC) is a low friction, corrosion resistant and an extremely hard finish. Gold TNC Fork Tubes: Titanium Nitride Coating (TNC) is an extremely hard ceramic material that reduces friction and is wear resistant.
