These handlebars are constructed with seamless CNC mandrel bent 0.120” wall 4130 chromoly tubes. Available in two styles: Smooth bars for custom applications: no slots, dimples, or castellated ends. TBW w/ insert handlebars for regular, cable-operated throttles, and Harley's Throttle-By-Wire control module if the black end plug is removed. TBW bars have slots on each side for stock H-D hand controls and an exit slot in the center for internal wiring. Form and Function: These bars look great on any bike with a stock or slightly stretched backbone length, stock to slightly raked neck angle, and stock to 6” over forks. As Biltwell bars go, this model is extremely versatile. Chumps look great and install easily on Softail Street Bobs and Low Riders using stock wires, brake lines and cables. NOTE: your motorcycle's clutch cable, brake line and/or hand control wires may not be long enough to safely install this bar. Double-check these components before taking the stock bars off your motorcycle. Technical Details: Seamless 0.120" (3mm) wall 4130 chromoly construction CNC mandrel bends Black electroplate and chrome-plated finishes available 1" O.D. model available in smooth for custom application or TBW w/ insert for regular, cable-operated throttles, and Harley's Throttle-By-Wire control module if the black end plug is removed Technischer Überwachungsverein (Technical Inspection Association, or TüV) in Germany is an independent laboratory that tests the fatigue strength, manufacturing quality, and fitment for a wide range of consumer products, with special emphasis on automotive and motorcycle components and accessories. Biltwell handlebars and risers that have received TüV verification are among the strongest and most thoroughly well-tested motorcycle parts in the world. Package Includes: 1 Biltwell Handlebar