Modern Buddy

Do you have to go genuine dealer to replace the brake handle or can a Vespa dealer do the job. It is closer than my other dealer?

If you have the new brake lever for them to replace, the Vespa dealer should be more than able.

The Vespa dealer will not have Genuine parts on hand.

I don't have a RH50 to examine but a lever is typically a one nut and possibly a bolt to remove and replace.

You could probably tackle the job yourself.

You did not specify, but if it's still under warranty, you need to let a Genuine dealer fix that. If its not, then what brainwheelies said.