#361
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Dynohub drag
LOW SPEEDS around obstacles, unforeseen circumstance....inevitable and unprepared somewhat chancy if not outright dangerous.
In facto from what yawl say here, without knowing the LED response to low dyno outputs...the safety factor rises, in an IC sense, to reg control levels for those unaware...the public's interest is for your safety....trucks have these regs. |
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#362
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Gearing for steep hills
On Monday, October 20, 2014 2:05:33 PM UTC-5, Bertrand wrote:
Lowest ratio is 1:1, so you can spin at 90 rpm down to 7 mph. A mortal on a steep climb (Lincoln Gap - 16%) will be way slower than that. A 150 lb. rider would need to put out over 400 watts to get 7 mph. How low is this guy's gearing for a 33% climb? https://www.youtube.com/watch?v=FgIL6eHHgZU |
#363
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The perfect example of The Krygowski Method of Alienating Peopleand Making Enemies
On Wednesday, October 22, 2014 8:44:14 PM UTC+1, Sir Ridesalot wrote:
On Wednesday, October 22, 2014 11:11:07 AM UTC-4, Frank Krygowski wrote: On 10/22/2014 1:13 AM, jbeattie wrote: On Tuesday, October 21, 2014 3:51:19 PM UTC-7, Frank Krygowski wrote: Walking a commuting bike up 65 widely spaced stairs for 100 yards in the dark _is_ an unusual need, Jay. It's unusual even in Portland. What percentage of Portland cycling commuters do you think really do that? Who knows? I could take these stairs and cut a half mile off my climb, and they're probably a quarter mile long. http://tinyurl.com/ppj3zze My trail stairs are pretty tame. http://tinyurl.com/nknst5q And I see plenty of wheel ruts, and I had to race some CXers up the stairs one night.. So, I'm not alone. I could commute through River View Natural Area if I wanted. http://bikeportland.org/2013/11/06/g...769#more-96769 -- which also includes a little hiking. A lot of cyclist take these stairs -- or the elevator. http://tinyurl.com/mz3gw4r It's a connector to a major bicycle commute route. http://tinyurl.com/k9qwrqe http://tinyurl.com/mkyvbx5 So, to answer your question, I assume that plenty of commuters encounter stairs -- or situations where you have to walk. Climbing is also something most people living on the West Coast do by necessity -- including everyone living on the close-in westside of Portland. Good low speed light output is not an unusual need. Climbing is something bicyclists in my area do by necessity, too. I know several bike commuters in my suburban area, and almost all of them have to climb out of the area's river valley to get home from work, just as I did. Climbing is also something done by randonneurs and tourists. You don't seem to believe that those of us with dynamo lights actually do these things! Please, discard the Scharfian myths that claim everything east of the Rockies is dead flat. That's fine. I just prefer not climbing in the dark -- or near dark. Anecdote alert: My wife and I are Warm Showers hosts. We've hosted quite a few touring cyclists over the years. One couple retired in the San Francisco area, then headed east to Maine by bike. When they got to Maine, they decided they were having so much fun they'd keep going, heading to a friend in Texas, via Ohio. They contacted us, and we said sure, they could spend a night here. When they arrived here, they were absolutely beat. They informed us that after crossing the U.S., then heading from Maine to Ohio, they never had hills kill them like the ones in Western PA did. The hills within, oh, maybe 40 miles of my house. Hell, there's a hill about 7 miles from my house that few members of our bike club could climb without walking. I'm pretty sure I can no longer climb it, despite low gearing (24 front, 34 rear), although I used to with higher gears. Now imagine doing that hill with a dimming front headlight, wondering if a car is going to come around the hair pin and whack you. That's my issue going up the little goat road in to my neighborhood -- the road that those cement stairs bisect. Every place has a hill somewhere. I've ridden across the US, too -- including the Appalachia and Ozarks. The mountains east of the Rockies are like doing hill repeats -- lots of climbing but no significant elevation gain. I wouldn't want to be creeping over those roads in near darkness. IMO, the Sierra are harder -- heat and elevation and steep climbs. http://adventuresonabike.com/2009/10...g-sonora-pass/ All very nice. Except that when walking your bike up a wooded path as part of a bike commute, "not being alone" is far from being in any way common or normal; and it doesn't show that "plenty" of others do that. It's very unusual. And for almost all of us who use them, climbing or riding at low speed does not mean our dynamo headlights are out, or even very dim. We simply don't have the problems generated by your oddball route and unfortunate headlight choice. It's a shame. You went for maximum lumens, rather than maximum practicality. BTW, I don't see the dangerous overhanging branches. -- - Frank Krygowski You're really becoming very smarmy Frank. just because you don't do something doesn't mean it's not common. What it might mean is that a lot of people riding like Jay simply don't post about it. Every time you (Frank) disagree with someone you soon become very disparaging. That one comment on another thread where you speciffically mentioned Duane was a classic example of trolling - making a comment intended to provoke. Cheers This is the perfect example of The Krygowski Method of Alienating People and Making Enemies. Krygowski is suck a permanent ****up, if he tried to make enemies, he'd make friends instead. What we're seeing is Krygowski trying to be a "spokesman for bicycles", and instead persauding everyone that whatever he says, it's safer to do the diametrically opposed opposite. Feel sorry for Franki-boy: you could have been born such a perfect jerk as he. Andre Jute How can one guy go so wrong in so many ways? |
#364
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The perfect example of The Krygowski Method of Alienating People and Making Enemies
And here we have a troll accusing someone else
of being difficult to get along with... -- Andre Jute fiultra1 yahoo.com wrote in news:0e7d452b-ce1a-44ac-badf-0f41a9146ea1 googlegroups.com: X-Received: by 10.182.98.232 with SMTP id el8mr4259259obb.42.1414086061610; Thu, 23 Oct 2014 10:41:01 -0700 (PDT) X-Received: by 10.140.29.196 with SMTP id b62mr14511qgb.25.1414086061495; Thu, 23 Oct 2014 10:41:01 -0700 (PDT) Path: eternal-september.org!mx02.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!news.glorb.com!uq10no16344426igb.0!n ews-out.google.com!i10ni0qaf.0!nntp.google.com!s7no107 376qap.0!postnews.google.com!glegroupsg2000goo.goo glegroups.com!not-for-mail Newsgroups: rec.bicycles.tech Date: Thu, 23 Oct 2014 10:41:01 -0700 (PDT) In-Reply-To: c0e4f649-0106-41ac-bade-c6d92dba9771 googlegroups.com Complaints-To: groups-abuse google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=86.44.94.100; posting-account=CHUGDgoAAACzKMcl6j-ZuzitmltC8m79 NNTP-Posting-Host: 86.44.94.100 References: afcfb1f0-069d-4248-9f05-e20303972961 googlegroups.com d326ea0b-1063-4859-a14a-a0cba0464075 googlegroups.com fO-dnaPzDuCPyNzJnZ2dnUVZ8mudnZ2d brightview.co.uk 10691212-d3d8-499a-a8de-c9526010fbe7 googlegroups.com m1shj8$bar$1 dont-email.me 8ab98897-8cbb-4217-a2ad-675b00af0162 googlegroups.com m1uct8$nt6$1 dont-email.me 270100ab-df96-4427-bf13-c14fc16353f7 googlegroups.com m1uqth$56u$1 dont-email.me 636bef07-8d77-4a0b-8f4b-d183b96fd01c googlegroups.com m20qkg$ajc$1 dont-email.me f1431042-33d1-4417-9087-44fbd284e163 googlegroups.com a07c0ffe-f64d-4a1f-81af-a75af8bd96ab googlegroups.com m21pub$rg8$1 dont-email.me b087a836-cb31-4f5f-9837-35c0c08c496f googlegroups.com m24fmg$hcf$1 dont-email.me 3c76b1e4-3404-4eb6-b426-27e931a759b5 googlegroups.com m25vf8$jnj$1 dont-email.me e89c88d3-89bd-4c6a-8b8c-d81f7fbb1e87 googlegroups.com m26o10$fsa$1 dont-email.me 785521cb-27dc-4e29-a684-fc514b20e0de googlegroups.com m28he3$ere$1 dont-email.me c0e4f649-0106-41ac-bade-c6d92dba9771 googlegroups.com User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: 0e7d452b-ce1a-44ac-badf-0f41a9146ea1 googlegroups.com Subject: The perfect example of The Krygowski Method of Alienating People and Making Enemies From: Andre Jute fiultra1 yahoo.com Injection-Date: Thu, 23 Oct 2014 17:41:01 +0000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Xref: mx02.eternal-september.org rec.bicycles.tech:166482 On Wednesday, October 22, 2014 8:44:14 PM UTC+1, Sir Ridesalot wrote: On Wednesday, October 22, 2014 11:11:07 AM UTC-4, Frank Krygowski wrote: On 10/22/2014 1:13 AM, jbeattie wrote: On Tuesday, October 21, 2014 3:51:19 PM UTC-7, Frank Krygowski wrote: Walking a commuting bike up 65 widely spaced stairs for 100 yards in the dark _is_ an unusual need, Jay. It's unusual even in Portland. Wha t percentage of Portland cycling commuters do you think really do that ? Who knows? I could take these stairs and cut a half mile off my climb , and they're probably a quarter mile long. http://tinyurl.com/ppj3zze My trail stairs are pretty tame. http://tinyurl.com/nknst5q And I see plenty of wheel ruts, and I had to race some CXers up the stairs one night. So, I'm not alone. I could commute through River View Natural Area if I wanted. http://b ikeportland.org/2013/11/06/go-off-road-in-river-view-natural-area-96769#more-96769 -- which also includes a little hiking. A lot of cyclist take these stairs -- or the elevator. http://tinyurl.com/mz3gw4r It's a connector to a major bicycle commute route. http://tinyurl.com/k9qwrqe http://tinyurl.com/mkyvbx5 So, to answer your question, I assume that plenty of commuters encoun ter stairs -- or situations where you have to walk. Climbing is also something most people living on the West Coast do by necessity -- including everyone living on the close-in westside o f Portland. Good low speed light output is not an unusual need. Climbing is something bicyclists in my area do by necessity, too. I know several bike commuters in my suburban area, and almost all of t hem have to climb out of the area's river valley to get home from work, just as I did. Climbing is also something done by randonneurs and touris ts. You don't seem to believe that those of us with dynamo lights act ually do these things! Please, discard the Scharfian myths that claim everything east of the Rockies is dead flat. That's fine. I just prefer not climbing in the dark -- or near dark. Anecdote alert: My wife and I are Warm Showers hosts. We've hosted quite a few touring cyclists over the years. One couple retired in the San Francisco area, then headed east to Maine by bike. When they go t to Maine, they decided they were having so much fun they'd keep going, heading to a friend in Texas, via Ohio. They contacted us, and we s aid sure, they could spend a night here. When they arrived here, they were absolutely beat. They informed us that after crossing the U.S., then heading from Maine to Ohio, they never had hills kill them like the ones in Western PA did. The hill s within, oh, maybe 40 miles of my house. Hell, there's a hill about 7 miles from my house that few members of our bike club could climb without walking. I'm pretty sure I can no longer climb it, despite low gearing (24 front, 34 rear), although I used to with higher gears. Now imagine doing that hill with a dimming front headlight, wondering if a car is going to come around the hair pin and whack you. That's my issue going up the little goat road in to my neighborhood -- the road that those cement stairs bisect. Every place has a hill somewhere. I've ridden across the US, too -- including the Appalachia and Ozarks. The mountains east of the Rockies are like doing hill repeats -- lots of climbing but no significant elevation gain. I wouldn't want to be creeping over those roads in near darkness. IMO, the Sierra are harder -- heat and elevation and steep climbs. http://adventuresonabike.com/2009/10...g-sonora-pass/ All very nice. Except that when walking your bike up a wooded path as part of a bike commute, "not being alone" is far from being in any way common or normal; and it doesn't show that "plenty" of others do that. It's very unusual. And for almost all of us who use them, climbing or riding at low speed does not mean our dynamo headlights are out, or even very dim. We simply don't have the problems generated by your oddball route and unfortunate headlight choice. It's a shame. You went for maximum lumens, rather than maximum practica lity. BTW, I don't see the dangerous overhanging branches. -- - Frank Krygowski You're really becoming very smarmy Frank. just because you don't do something doesn't mean it's not common. What it might mean is that a lot of people riding like Jay simply don't post about it. Every time you (Frank) disagree with someone you soon become very dispara ging. That one comment on another thread where you speciffically mentioned Duan e was a classic example of trolling - making a comment intended to provoke. Cheers This is the perfect example of The Krygowski Method of Alienating People and Making Enemies. Krygowski is suck a permanent ****up, if he tried to make enemies, he'd make friends instead. What we're seeing is Krygowski trying to be a "spokesman for bicycles", and instead persauding everyone that whatever he says, it's safer to do the diametrically opposed opposite. Feel sorry for Franki-boy: you could have been born such a perfect jerk as he. Andre Jute How can one guy go so wrong in so many ways? |
#365
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The perfect example of The Krygowski Method of Alienating Peopleand Making Enemies
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