Friday fun post
#1
<3s bikes
Thread Starter
Join Date: Dec 2005
Location: CA
Posts: 1,060
Bikes: lots
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Friday fun post
Cruising ebay this morning found me a real funny auction for a new bicycle patent.
https://cgi.ebay.com/100-MPH-High-spe...ht_1173wt_1029
Here is the actual patent.
https://www.google.com/patents?id=nj1...page&q&f=false
Sure would like to see the legs that could power this to 100mph with upright bars and no streamline fairings.
this has already been posted in the road forum apparently, don't beat me up for reposting it. I think the gear heads in this forum would appreciate the hilarity more then the roadies.
https://cgi.ebay.com/100-MPH-High-spe...ht_1173wt_1029
Here is the actual patent.
https://www.google.com/patents?id=nj1...page&q&f=false
Sure would like to see the legs that could power this to 100mph with upright bars and no streamline fairings.
this has already been posted in the road forum apparently, don't beat me up for reposting it. I think the gear heads in this forum would appreciate the hilarity more then the roadies.
#2
Elitist Troglodyte
Join Date: Jun 2006
Location: Dallas
Posts: 6,925
Bikes: 03 Raleigh Professional (steel)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Hey, free shipping !
__________________
Stupidity got us into this mess - why can't it get us out?
- Will Rogers
Stupidity got us into this mess - why can't it get us out?
- Will Rogers
#3
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,095 Times
in
741 Posts
That two-stage type of gearing was used on the bike John Howard rode to a 150+mph self-propelled speed record several years ago. Of course he was riding right inside the enclosed rear fairing of a very powerful race car so, effectively, he was riding with zero air resistance. I recall the high gear being well over 300 gear-inches.
#4
Full Member
Join Date: May 2008
Location: Incognito
Posts: 395
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 0 Times
in
0 Posts
Don't some recumbents have 120 ghears, dual cassettes? It would also be easier to pedal a recumbant faster as there is something to push against when pedaling.
#5
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,095 Times
in
741 Posts
Yeah, intermediate two-stage gearing is nothing new and if the intermediate transfer gear is a cassette and derailleur you can have an absurd number of gears. Recumbents are faster because of their improved aerodynamics, not because you have "something to push against". All unassisted (no draft) bicycle speed records have been set using a fully faired recumbent.
Last edited by HillRider; 05-28-11 at 06:16 AM.
#7
Senior Member
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 30,225
Bikes: Catrike 559 I own some others but they don't get ridden very much.
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1572 Post(s)
Liked 643 Times
in
364 Posts
All you have to do is to be able to turn the crank.
I've been surprised at the people who think they'd be faster on a bike with bigger wheels because "you go farther with every revolution."
I've been surprised at the people who think they'd be faster on a bike with bigger wheels because "you go farther with every revolution."
#8
Senior Member
#9
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,095 Times
in
741 Posts
#11
Senior Member
Join Date: May 2005
Location: SFBay
Posts: 2,334
Bikes: n, I would like n+1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 127 Post(s)
Likes: 0
Liked 133 Times
in
108 Posts
Intermediate shafts are common on recumbents, and have been since before the application date on this patent. Interestingly, your power output is lower on a recumbent (yes, that means they really are slower up hills, not just in comparison to their increased flat speeds). I was talking with Sam Whittingham about power output a couple weeks ago and the gist is that his recumbent sprint power is ~50% of his upright bike sprint power. The curves don't merge until ~ the 10 minute mark. Even taking a couple years off of road bikes and riding just recumbents didn't change that.
#12
bike whisperer
Join Date: Dec 2009
Location: Melbourne, Oz
Posts: 9,537
Bikes: https://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=152015&p=1404231
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1523 Post(s)
Liked 716 Times
in
508 Posts
Yeah, recumbents trade biomechanical efficiency for lower drag.
On a road bike, your torso's weight is cantilevered over the pedals via your glutes. Something to push against doesn't make up for it.
On a road bike, your torso's weight is cantilevered over the pedals via your glutes. Something to push against doesn't make up for it.
Thread
Thread Starter
Forum
Replies
Last Post
Brocephus
General Cycling Discussion
34
09-20-18 08:32 AM
rickbuddy_72
Track Cycling: Velodrome Racing and Training Area
10
11-13-17 12:41 PM
Jarrett2
Clydesdales/Athenas (200+ lb / 91+ kg)
21
06-25-13 08:37 AM