Having a chinbar for anything other than Extreme freeride/DH does limit you in design with regards to weight and venting, I’m not sure if they’ll ever come up with a viable solution. Of all the crashes I’ve experienced, I’ve only had one major faceplant on the lower face and that was because of high speed and hitting the ground where a transition levelled out. I think if I hadn’t been wearing a full facer, and instead the pisspot I replaced two weeks before, I’d have put my arms across my face. As it was I placed too much confidence in the full facer and as I was flying at the ground I accepted I was likely to die and just relaxed my body and closed my eyes. Who knows if putting my arms up as a cushion would have helped, or if I’d have been carted off with two broken limbs.
The majority of my normal crashes have been where my bike stopped dead leaving me to land on knee, hip or shoulder, with the only head strikes being side strikes where I feel my helmet came out too far, or rear strikes (unavoidable)
I’ve always tried to get slim fitting helmets to avoid those side strikes, which really feeds into the argument where some people choose not to where a helmet on the road because of increased risk of head strikes from wearing something so bulky. I’ve personally had a road accident whilst not wearing a helmet, land ed on hip and elbow (chipping bones) but didn’t strike my head luckily and I always thought it was because my small head didn’t have a bulky helmet on it. This leads me to always fret over new helmet purchases. I actually normally wear a Met Crackerjack for road and XC usage (yeah, kids design!) which is really narrow, but it’s not vented enough.
I’m about to buy a new combi helmet and it’s got to be a Fox Transition I think. There’s loads of people, male and female, wearing pisspots for commuting round here so I won’t look out of place and I guess the venting can’t be ‘that’ much worse than my Met for longer rides, but we’ll see. If it’s A to B on Sustrans routes in the heat of summer I’ll just strap the helmet to my rucksack and put it back on at road sections. I simply can’t find an adult decent vented MTB helmet to fit me, so this is my route.