If you want to improve the suspension of your Vespa GTS 300 hpe, you will find instructions and a test of the BGM Pro F16 Competition shock absorbers here. I will go into the function and setting options and give a few tips on configuration. Have fun with the video! Here you can get the BGM shock absorbers:
• Front shock absorber: BGM Pro SC / F16 Competition: http://bit.ly/BGM_Compertition_hpe with ABE for hpe models
• Rear shock absorber: BGM Pro SC / R12 Competition: https://bit.ly/BGM_Competition_hinten with ABE for hpe models
• Rear shock absorber: BGM PRO SC / R1 SPORT: https://bit.ly/bgm_sport with ABE for Vespa GTS hpe models

Test of the BGM front:    • VERGLEICH Stossdämpfer BGM oder VESP...  
Installation of the BGM shock absorbers:    • Vespa GTS 300 hpe "British Classic" T...  

Here you can tune your Vespa GTS 300 hpe and have it optically customized:
Cafe Racer 69 https://www.caferacer69.com

Accessories for your Vespa Gts or scooters: https://bit.ly/scooter_center