Home › Forums › Motorcycle Tech Talk › BMW system 4 helmets › Re: Re: BMW system 4 helmets
I had the same leaking problem with the Sys 4. When I bought a dark visor it didn't leak. The original clear one was slightly larger so Experience replaced it and no more leaks. I now have a 4 and a 5. I use the 4 for work as it gets knocked about a bit and the 5 on longer rides as it is quieter but I will have to retire the 4 soon as it approaches 5 years.