If you are an owner of a Land Rover Defender, you know that “standard” is a relative term. Over several decades of production, Land Rover made subtle but significant changes to the body tub. One of the most common pitfalls for owners upgrading to Masai 4×4 glass is the difference between the 50/50 (50mm radius) and 50/70 (70mm radius) windows.
Getting this wrong means the difference between a sleek, watertight upgrade and a frustrating afternoon with a window that simply won’t seat. Here is the deep dive into why these differences exist and how to choose.



