Salsa Firestarter Carbon Fork 15x100mm Thru-Axle Matte BlackSalsa Firestarter Carbon Fork 15x100mm Thru Axle Matte Black. The Firestarter carbon fork is made from high modulus carbon fiber built for all terrain riding. Three Pack mounts on each leg give you room for water or Anything Cages and mid blade mounts accommodate racks for panniers. This fork is light tough and ultra versatile with the capacity to fit a wide range of tire sizes. High modulus carbon fiber construction Tapered 1 1 8 to 1 steerer tube