New thick set for the mainshaft consisting of seal, graft and O ring 4,6x2,3 suitably for Jawa model 353, 354, 559, 360, 590, 592, 362 California, 633 Bizon, 553, 554, 634, 638, 639, 640 and Jawa Perák with 250 and 350 cubic centimetres. Moreover, suitably with CZ of the models 450, 453, 455, 473, 470, 475, 501, 502, 505.
