Park Tool Socket Y Wrench 8/9/10MM ST-3 drumbeat21-321 - Tubeless Ready GCT Casing

- Tubeless Ready GCT Casing with re-inforced sidewall

- One-piece Xnetic knit backhand

- Mounting holes are approximately 11

while genuine 3M reflective logos and highlights add visual pop in low light conditions

The injection nylon and glass fiber composite sole has an increased range of cleat adjustment with a stiffness index of 6

Park Tool Socket Y Wrench 8/9/10MM ST-3 drumbeat21-321 - Tubeless Ready GCT CasingThe Park Tool ST 3 combines the three most common bolt and nut sizes found on a bicycle into the iconic shape of a Park Tool 3 way wrench, for use on brakes, racks, accessories and more. forged chrome vanadium steel sockets. ST 3 Features 8 mm, 9 mm, and 10 mm sockets