Rider 550 Lock.

egan651 Herts UKRegistered Users Posts: 5
Apprentice Traveler
Hi all, Having just bought a Rider 550 and broken the flimsy supplied lock on fitting it, I was just about to search google for a different ( better ) lock but thought Id ask if there is a tried and tested third-party lock I should look at, and also is a screen protector really necessary I had a Garmin for a year or so and didn't use one and all was fine so just thought Id ask experienced users.