NOTE: Hubs are bolt-on for the RC10B4.2 Factory Team edition only, which uses a 3/16x3/8 bearing on the inside, and a .187x.196 bearing on the outside. The other B4.2 versions use two 3/16x3/8 bearings. To install these on your non FT B4.2, you will need one pair of Team Associated #7935.

Item# C25297BLUE Barcode: 91789019443