Review on Heavy Duty Seatylock Mason U Lock - Patented Diamond Secure Anti Theft Bike Lock With Keys - Ultimate Protection For City, Electric, Mountain Bikes, And Scooters by Joe Mix

I did heavy research on all types of locks and ultimately went with Seatylock.It is such a bad feeling like wondering if you're ever going to get home (or back to the office from a lunch errand) when you simply can't get the tumblers to open up and you're being super gentle to not bend or break the key off - something that will happen with competitive brands - but never with Seatylock!Lock mechanism is SUPER SMOOTH, feels very solid like you aren't at risk for ruining anything.

Attaches very smoothly to my bike, not harsh or cumbersome to attach around bike stations.Peace of mind is priceless: I know it will open whenever I need, and lock quickly and without hastle.Thank you for great product!