Biltwell Tyson 1 Handlebars The Tyson handlebars boast rugged, seamless 4130 chromoly construction for strength and comfortable ergonomics for high-performance riding and clean aesthetics, making it the perfect match for modern club style bikes. The handlebar is 0.120 wall (3mm) seamless 4130 chromoly with a 1 crossbar and 1 O.d. at the bar ends. Features: Handlebar is 1 at the center and 1 O.d. on the bar ends 0.120 wall thickness TIG-welded internal mounting bungs accept 1/2-13 t.p.i. mounting bolts Vertical uprights are 3 1/2 apart on center Specs: 30 wide 2 3/4 pullback