A set of reinforced thread-wheels made by the Guarder company designed for the V.2 and V.3 type gearboxes. A standard transmission was used here ( the ratio of the number of teeth on the thread-wheels ), this set is a perfect alternative for standard thread-wheels that are the default in V.2 and V.3 gearboxes. Simultaneously, it is perfectly prepared for additional power tune ups – it will perfectly cooperate with very stiff springs.