Pro Circuit T-4 Exhaust - CRF50 Handlebars & Controls Prototype versions were developed and

Prototype versions were developed and tested by top AMA Supercross and Motocross racers and factory teams

suitable for "A" or Hoop style swingarms

Fits chain size 420

275mm eye to eye

Pro Circuit T-4 Exhaust - CRF50 Handlebars & Controls Prototype versions were developed andPro Circuit T 4 Exhaust The T 4 System is designed to increase performance from bottom to top, making it easier to ride faster. The stainless steel and aluminum construction offer increased strength and durability; ideal for racing and off road riding. This system is also tunable, meaning you can remove the spark arrestor screen turning it into a race tip for closed course racing; fasten the screen back on for off road riding. The T 4 System is