On Friday, September 8, 2017 at 6:48:47 PM UTC-7, Frank Krygowski wrote:
On 9/8/2017 6:00 PM, Joerg wrote:
On 2017-09-08 14:51, wrote:

[...]

... Now I have black chain lube stains all over my hands.


Interestingly it gets black when riding lots of roads. On bike paths and
singletrack it doesn't turn black. I use the same lube (White Lightning
Epic Ride) for the road bike and the MTB. On the MTB I don't get black
hands unless I use it for valley errand rides when the road bike is down
for some reason like right now.

Which makes me wonder what all those bike path foes are doing to their
lungs.

There have been quite a few studies showing that bike commuters live
significantly longer than people who use other ways of getting to work.
Those studies have gotten that result consistently, even after
correcting for confounding variables.

So whatever road riders are doing to their lungs, it appears to be
beneficial overall. Cut the "Danger! Danger!" crap, Joerg.

Exactly WHERE can they gain sufficient data to analyze bicycle commuters in the USA? Therefore it is data from Europe. It can't be from Italy or France anymore since those places have degraded to the point where there are few bicycle commuters now. So they have to be relying on Holland and Belgium and the data reflect people from the 80's more than people from the 2010's.

I'm sure that bicycle commuters on the whole probably do have healthier and longer lives but don't go waving around "studies" as if they could reflect anything other than the beliefs of the study authors.