Park Tool Spoke Tool 4 Sided 0.127INCH 3.23MM Black SW-40 drumbeat21-655 The opposite end fits three-notched

The opposite end fits three-notched fixed-cones on some one piece cranks

This helmet comes with an integrated visor

Add your CatEye light to the underside for seamless integration

brake components

Fit System: Roc Loc Sport

Park Tool Spoke Tool 4 Sided 0.127INCH 3.23MM Black SW-40 drumbeat21-655 The opposite end fits three-notchedUnique four sided design provides extra strength and support and helps prevent slipping and deformation of aluminum nipples. Uses the same world famous design and high quality materials as Park Tool's three sided spoke wrenches. Features Four sided Sized for 0. 127" (3. 23mm) nipples Same size as the SW 0 (black) Fits common Edco, Wheelsmith and DT square nipples, among others About Park Tool Park Tool are the world's largest bicycle tool