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#11
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Need to go faster / New to road bikes
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#12
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Need to go faster / New to road bikes
On Sat, 06 Sep 2003 14:42:03 +0000, Rick Onanian wrote:
Specifically, the Weinman 519 rims on my MTB and the Mavic CXP-21 rims on my road bike, neither of which has been a problem, though reviews paint them as very weak. Don't believe the reviews. I have one or two CXP-21's (and other similar shallow-V Mavic wheels) and my experience is that they are very durable indeed. -- David L. Johnson __o | Let's not escape into mathematics. Let's stay with reality. -- _`\(,_ | Michael Crichton (_)/ (_) | |
#13
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Need to go faster / New to road bikes
On Fri, 05 Sep 2003 22:23:47 +0000, Bill Davidson wrote:
I was thinking the same thing. I've heard of riders spinning about 180rpm's before but I'd think 200rpm's is a bit unusual--particularly for recreational riders. I suggest that is a bit of an exaggeration, and he probably knew it. I have managed close to that, but only downhill on my fixed gear, when I really didn't have much choice. -- David L. Johnson __o | The lottery is a tax on those who fail to understand _`\(,_ | mathematics. (_)/ (_) | |
#14
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Need to go faster / New to road bikes
On Sat, 06 Sep 2003 05:31:37 +0000, Ken wrote:
A track sprinter can probably hit 300 or 400 rpm. Nonsense. Track sprinters typically use 85" or 90" gears, like say a 48/15. At 400rpm, that would be 100mph. They may be fast, but not that fast. A fast sprinter can probably hit, not maintain, 200, which is still 50mph. I've done over 250 rpm In a track gear? -- David L. Johnson __o | More people object to wearing fur than leather because it is _`\(,_ | safer to harrass rich white women than motorcycle gangs. (_)/ (_) | |
#15
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Need to go faster / New to road bikes
Man I was praying for no potholes at that speed! I need a helmet......
Hopefully you'd just go over the pothole but I'd try to avoid them at high speed. Developing the skill the safely jump a pothole, cattleguard, or other obstacle is a nice thing to have. :-) Chris Neary "Science, freedom, beauty, adventu what more could you ask of life? Bicycling combined all the elements I loved" - Adapted from a quotation by Charles Lindbergh |
#16
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Need to go faster / New to road bikes
"Bill Davidson" wrote in message news:EBz6b.114056$kP.30472@fed1read03... The other day I hit 46 mph in a similar situation. I stopped pedaling the second I started going down hill. It was a very steep hill (Texas St going from North Park to Mission Valley for those that know San Diego). Man I was praying for no potholes at that speed! I need a helmet...... Hopefully you'd just go over the pothole but I'd try to avoid them at high speed. I'm one of the pro-helmet people around here but helmet or no helmet, falling at 30+ mph is going to hurt a lot. The fastest I've fallen on pavement was about 25mph when I was 15 years old. I wouldn't recomend it (shock, massive road rash, stiches, bleeding, lots of time in the emergency room). Don't worry about 90-95--especially at the beginning. If you can maintain 80-85 comfortably, then stick with that for a while. 135.7 rpms is impressive with your feet not attached to the pedals. Clearly, you have enough spin for that 52-13 above 40 mph. --Bill Davidson I worked out the numbers: 52-13, 137.5 prpm, 82.875" tire circumference = 43.164 mph What I can't get over is the poster who claimed 400 prpm! I can't even think what it must have been like for you at 46..... I had an accident on my mountain bike (full susp) a few years ago - was riding along the sidewalk and passed a pedestrian - went off the concrete and then attempted to get back on the sidewalk at 18 mph....... Bam! Face first! Cell phone didn't survive the wreck but my ham radio handheld (a Yaesu VX5) did - put out a emergency call on a nearby repeater and the stupid ambulance crew was there in a few minutes.... Stupid? Why? You'd think that way if with a banged up body, they decided to DROP the stretcher when loading you into the meat wagon. Ouch - where's my lawyer??? lol Ken |
#17
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Need to go faster / New to road bikes
Ken Bessler wrote:
I worked out the numbers: 52-13, 137.5 prpm, 82.875" tire circumference = 43.164 mph What I can't get over is the poster who claimed 400 prpm! I can't even think what it must have been like for you at 46..... I can't pedal that fast--at least not with my current gearing. I just coasted and the hill is steep enough for gravity to get me that speed. --Bill Davidson -- Please remove ".nospam" from my address for email replies. I'm a 17 year veteran of usenet -- you'd think I'd be over it by now |
#18
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Need to go faster / New to road bikes
"Bill Davidson" wrote in message news:BBJ6b.114083$kP.10762@fed1read03... Ken Bessler wrote: I worked out the numbers: 52-13, 137.5 prpm, 82.875" tire circumference = 43.164 mph What I can't get over is the poster who claimed 400 prpm! I can't even think what it must have been like for you at 46..... I can't pedal that fast--at least not with my current gearing. I just coasted and the hill is steep enough for gravity to get me that speed. --Bill Davidson -- Please remove ".nospam" from my address for email replies. I'm a 17 year veteran of usenet -- you'd think I'd be over it by now It's interesting to note there are a couple of steep hills where I used to ride in Wichita, KS. One is equal to the hill I coasted down yesterday and got 31 mph. On my mountain bike all I could get out of that hill was 17 mph! Ken |
#19
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Need to go faster / New to road bikes
"Chris Neary" wrote in message ... Developing the skill the safely jump a pothole, cattleguard, or other obstacle is a nice thing to have. :-) You can jump a cattleguard? |
#20
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Need to go faster / New to road bikes
"Matthew" wrote:
"Chris Neary" wrote in message .. . Developing the skill the safely jump a pothole, cattleguard, or other obstacle is a nice thing to have. :-) You can jump a cattleguard? Who can't? You must not be thinking about the same kind of cattle guard Chris is - basically they're just a sideways sewer grate about 4-5 feet (1.5m) deep and the width of the road. Yeah, you have to be moving at a pretty good clip to totally clear one, but it's not that tough. OTOH, I never TRY to jump them because they're not hard to ride over, and the consequences of missing... well, aren't good. Mark Hickey Habanero Cycles http://www.habcycles.com Home of the $695 ti frame |
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