This set looks to be non adjustable the adjustable can me lengthed and shortened accordingly for bottom mid to top. But these are gonna be a very strong mid range set of pipes. There should be like a vin tag or numbers on them. It's now called led performance. Arlens a great guy shoot him a call and he will let u know if they will work on your application. More national championships have been won on these pipes mx and xc. Only pipes I run on any of my bikes.