Live blog: More madness from Dafne Fixed, refuel wth BMC Racing, and more

having seen and been regularly around these cars in London whilst riding, the issue is their erratic behaviour, particularly on narrow, i.e. normal uk roads - its is exactly the sudden swerving or unexpected stop/freeze that is the problem for all other road users...human drives will mostly hold their line as you move past on inside or outside, these shift out of the way suddenly, over reacting to normal positioning.

@Mr Blackbird It's quite a skill.

@Terry Hutt good point, although while doing testing without a helmet I broke my shoulder and have suffered various other contusions. So I suggest the control should not be "no helmet" as in my experience that adds the confounding variable of your other limbs and appendages as (for some) instinct will mean you sacrifice them to protect your head...

@mdavidford or the highly skilled cycle football / radball players...

@No Reply dunno about childish, but I haven't heard that one since the 90s. Can't say I miss it.

Bit harsh on the BMXers.

@No Reply Er, nope - there are no age restrictions on the site. As previously noted, though, if it were restricted to adults, your choice of language would seem to mark you out as someone who shouldn't be on it.

@Mr Blackbird This is an adult forum. If adults are getting so worked up over the term bum chum, then they need to get a grip. People have a right to be offended, people have a right to offend. But if someone finds offence in something, it doesn’t mean its offensive. It means they are offended. Two different things. I am as free to offend as you are to feel offended. Freedom of speech. Do you want to silence freedom of speech? Or just silence things you don’t like?

@No Reply You obviously have a lot of knowledge of cyclo cross and make a valid point, but why detract from your comment by using a phrase that is probably offensive to the majority of readers?

@chrisonabike I think the important message here is that your head will fly 20% further if you are wearing a collapsible helmet. Has anyone researched how far your head will fly if you're not wearing a helmet at all? Seems worthy of a research grant.