Archived posting to the Leica Users Group, 2021/08/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks for the enlightenment, Douglas. On 8/21/21 4:38 PM, Douglas Barry wrote: > Jim, the tyres are generally all the same, but the rims that hold them > can be got in different aerodynamic profiles. The deeper the rim the > more aerodynamic it is. The choice of the various profiles are left to > the rider and varied according to the type of stage.? On a tough > mountainous stage like the one shown in Nathan's pics, a slick profile > is not that important if you're a good climber, but if you're not a > good climber, but rather a brave descender, you can claw back time on > steep descents, so a more aerodynamic rim might pay off a little, both > psychologically, and in actuality. However, the shorter spokes reduce > shock absorption and can make for a less comfortable ride. > > Watch what happens at 1 min 15 secs in this video of yesterday's stage > of the Vuelta to see why shock absorption is fairly useful!!? > https://www.youtube.com/watch?v=PS755VYjNTY > > Douglas > > > > On 21/08/2021 15:30, Jim Nichols wrote: >> Nice coverage, Nathan.? Why do some choose narrow tires, while a few >> have larger tires? >> >> On 8/21/21 8:06 AM, Nathan Wajsman wrote: >>> The Vuelta a Espa?a bicycle race started last weekend. After a >>> series of relatively flat stages, yesterday things got serious. >>> Stage 7 contained six mountain passes over 152 km, finishing in the >>> mountains near Tibi, one of my cycling destinations. So I took the >>> afternoon off to go and see the race. I planned to cycle to Tibi and >>> catch the Vuelta at the top of the penultimate mountain pass of the >>> stage. But the climb to Tibi is very tough, and inland temperatures >>> were going to hit 40C during the afternoon. Driving was not an >>> option (you go to see a bicycle race on a bicycle, or else you stay >>> home and watch on TV). So instead, I cycled to Jijona, about 24 km >>> away, and found a great spot with shade, shared with a nice local >>> family. It was on a steep uphill, so the speed of the cyclists would >>> be moderate (all relatively speaking, of course), and at that point >>> the cyclists would have 120-125 km and four passes in their legs, so >>> I knew the peleton would be nicely spread out, and it would take >>> 20-30 minutes for everyone to pass. And so it was. >>> >>> What I like about cycling from a spectator?s point of view is that >>> in no other professional sport can you get so close to the >>> competitors. I could have touched the cyclists if I had wanted to. >>> But I settled for photos, and a small gallery of 29 images is now >>> uploaded. Some of the images are not technically perfect but I >>> included them anyway because they show the effort and suffering of >>> the cyclists. Where I could identify the cyclists, I have done so in >>> the captions. It?s all here: >>> >>> https://www.greatpix.eu/La-Vuelta-in-Jijona/ >>> <https://www.greatpix.eu/La-Vuelta-in-Jijona/> >>> >>> As always, comments and critique are welcome and appreciated. >>> >>> Nathan >>> >>> Nathan Wajsman >>> >>> Alicante, Spain >>> http://www.frozenlight.eu <http://www.frozenlight.eu/> >>> http:// <http://www.greatpix.eu/>www.greatpix.eu >>> PICTURE OF THE WEEK: http://www.fotocycle.dk/paws >>> <http://www.fotocycle.dk/paws>Blog: >>> http://nathansmusings.wordpress.com/ >>> <http://nathansmusings.wordpress.com/> >>> >>> Cycling: http://www.crazyguyonabike.com/belgiangator >>> <http://www.crazyguyonabike.com/belgiangator> >>> >>> YNWA >>> >>> "I?m not arguing, I?m just explaining why I?m right" >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information -- Jim Nichols Tullahoma, TN USA