- 4040 2 x 390mm inserted into end of Stage 1 side bars, 200mm in out extension available
- Each: Stop for maximum extension:
- threaded M6 10mm from 1 end
- Cap screw M6x16mm as a stop
- Each: Clamping:
- 2 x M8 4040 T8mm M8 Spring block nuts
- 2 x M8x16mm clamping handles (Maybe cut down later pack with washers
- 2 x 9021 M8 Washers
- Each: Stop for maximum extension:
- 2060 x 1 900mm first cross bar