Watch Joff Summerfield as he rides Tour of Flanders sportive on a penny-farthing

Yup. Pretty cool indeed! Until they discover that 32.33-inch are 17% more efficient in 14.5-degree wind on Sundays, that is. Otherwise, you totally need a 30.97 one.

Just like James Cracknell. A fact not mentioned in his video, or by anybody interviewing him, and even though that broke the BBC Editorial Policy, my complaint was dismissed.

You can also buy grinder cleaner pellets - you just grind them like you would with beans and they absorb the oils nicely as they follow the same path as the beans. You can also use rice (uncooked is recommended) though that may not be as kind to your grinder.

Assuming that post is aimed at me, it's hard to tell with the new dreadful system: "Her helmet shows a crack, and that’s significant." Yes, but probably not in the way you think. Helmets are supposed to work by absorbing energy by deformation, and if they've cracked, they've failed catastrophically and haven't absorbed much energy. "I understand the physics behind how a helmet works,..." Given the above, are you sure about that? "That’s your right, but don’t think you’re making any informed decision or that you know anything about potential consequences." I was one of the first people in my area to wear a helmet, until someone asked me if I'd checked the data on the actual effects of helmets: I did so and never wore one again. I think I'm pretty informed on the subject as my MSc dissertation was about cycle helmets and I keep up to date with the published studies. "As for your handwaving statistics, come back when you understand statistics and all the factors that influence statistical outcomes." I'm not sure which "handwaving statistics" you're referring to, since my post contained none. I'm no master of stats, but I have a basic understanding as my engineering education, quality control, BSc and MSc all demanded that.

73 Newtons in this planet's gravity is the equivalent of 7.44 kgf (kilogram force). Although kgf has largely been superseded by Newtons as a measure of force it is still used in China, by the European space agency and various other bodies. So no, not misremembering, not mischaracterising, and not research done by unqualified persons. https://www.forensicmed.co.uk/pathology/head-injury/skull-fracture/

One thing to keep in mind is that cracks in helmets are usually the result of tensile forces as the plastic foam is strong under compression, but weak under tension. It's possible that the crack formed due to the forces applied elsewhere e.g. if you snap a piece of spaghetti (or a Shimano crank), the break is not where you're holding it and applying force.

Yes. What a shitshow

[img]https://static.standard.co.uk/s3fs-public/thumbnails/image/2012/01/03/09/bald-squirrel-415x275.jpg[/img]

Dagnammit - have road.cc stopped the img tags from working?

"caused by a force as low as 10kgs" This sentence does not make much sense. Either you are misremembering or mischaracterising whatever research this was, or else this research you are quoting was done by people unqualified in this area.