Sapim Polyax Spoke Nipple

Sapim's Polyax nipples are treated with a special coating to increase durability and allow for easier wheel building. The nipples have a 2 mm thread for rims with Ø 3.5 mm holes. Aluminium saves weight, compared to other materials like brass.

Sapim's patented Secure Lock technology is a locking mechanism that prevents nipples from untightening. The advantages of this easy locking system are the possibility to use them on a truing machine and that there is no loose function while truing the wheel. Highly precise and accurate machines have specifically been developed to produce this type of locking system. They ensure stable and well defined deformation on the thread and increase the nipple's torsion about 18 cNm (+/- 3 cNm).