The Eclat Tibia 2 Piece Crankset offers the function and simplicity of a two-piece design, but stay true to the proven splined design of three-piece cranks. The Tibia cranks feature a slim arm design, constructed of 4130 cr-mo arms and spindle. The Tibia cranks go together smoothly, stay secure and won't let you down. The right crank for the rider seeking simplicity, functionality and zero headaches.