Jack Clark’s signature Radio S6 frame is made from Sanko seamless 4130 cromo tubing and features a machined and heat treated 117mm tall hourglass-style head tube, ovalized seat tube, short 12.7" chainstay, minimal laser cut heat treated 6mm thick dropouts, and unique seat tube design.
Headtube Angle: 75°
Seattube Angle: 71°
BB Type: Mid
BB Height: 11.5"
Chainstay: 12.75-13.3"
Seattube Height: 8"