The Bolt(6x20) is the most widely applied product in the TU250X 2011 (L1) USA (E03) CAM CHAIN ( two times ).
The eight Tu250x 2011 (l1) Usa (e03) Cam Chain component parts are all listed in this schematic.
A sample from the products for the Cam Chain include: Bolt,cam Chain Tensioner, Tensioner,cam Chain, Adjuster Assy,tensioner, Bolt(6x20).