BGM Original Vespa Steering Locking Nut Kit T5 MK1, Cosa, PK XL2
The handlebars have a steel handlebar under their plastic cover. This is screwed directly onto the fork from above using a nut (similar to the headset lock nut). This was mostly seen on the T5 MK1's and some of the PK models that were available at the time.
1x profile disc
2x counter nut 7mm height
Comparison No. BGM79N07KT (BGM) 229570, 226600, 226789 (PIAGGIO)