Thule T Bolt 92mm 50553 and Barrel 50208 used for the Thule 591 598
Thule part number 50553 t-bolt. 50208 for the Thule Barrel. To fit 1 x 591 to Thule square bars you require part numbers Allows cycle carrier to be fitted to Thule square bars. We are a authorised Thule dealer.