This was mentioned in an interview on Pinkbike recently http://www.pinkbike.com/news/steve-parr-interview.html
PB: Can you expand on what you said about riders having to take their own insurance?
UKGE: We are currently talking with numerous insurance companies about personal insurance. What a lot of people don’t realise is that they think they are insured with BC, but its only Public Liability which is 3rd party, the riders will get nothing if they are involved in an accident. Its only a third party that will receive money, not many people actually realise that. Until you get a race license then you have a bit more insurance. But what we are talking about is that if you actually want to come and race one of our UK Gravity Enduro events next year you will have to take out personal insurance. We will provide a contact and a price, which should be very competitive
PB: So insurance to cover personal injury, damage to your equipment?
UKGE: Yeah Public liability, loss of earnings and whatever they need to get back right, we’re currently looking into that.