I just installed some new adjustable brake levers on my 300GTS as I always hated that I had to roll my hand forward to get a to get more than one finger on the brakes (when I was squeezing I didn't need to roll my hand). They're also about an ich longer which is great as I ride with my hand partially on the silver handlebar ends
Well worth the $35ish from aliexpress (very similar also on ebay). took about 1&1/2 for me to install.
(link to same looking but for a different scooter as I couldn't find a correct picture)