Synthetic high-strength rubber insert for using dyneema wishbones for tied rubbers.
 
It has 1 blind transverse and 1 longitudinal communication holes where the thread passes and is secured in the center of the tire without protruding.
 
Its minimalist dimensions in combination with its material and its perfect hydrodynamic shape advantageously deal with the unpleasant phenomena of dead lengths, jams, swirls, and unwanted metal noises.
 
It offers at the same time ease of installation as well as security in its anchoring, inside the hole of the rubber.