I nheriting much of its shape from Leatt ’s regular 4.0 full-face, the all-new Enduro 4.0 helmet is a 2-in-1 that converts between half shell and full face mode with a simple twist of 2 levers. As with most helmets in this category, it relies on an internal harness to fine tune the fit as opposed to the full comfort liners found in traditional full face helmets. The Enduro 4.0 is ASTM certified for downhill use, which makes it a good choice for those looking for a single solution for anything from XC rides to days in the bike park. We've had one out on the trails for about a month or so, keep...