Go Back  Bike Forums > Bike Forums > Folding Bikes
Reload this Page >

Another electric penny-farthing

Search
Notices
Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

Another electric penny-farthing

Thread Tools
 
Search this Thread
 
Old 06-03-13 | 06:47 PM
  #1  
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 218
Likes: 2
Another electric penny-farthing

Somewhat foldable. 20" front and 16" back.

https://www.indiegogo.com/projects/re...transportation



fwd-bwd is offline  
Reply
Old 06-03-13 | 07:10 PM
  #2  
Banned
 
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast

Bikes: 8

by definition the gear is 20" so pretty low..

Needs something like Florian Schlumpf's 2 speed unicycle wheel.. then the gear would be 30"

unless a 2.5x overdrive, then it would be 50"


but at least the Owner & sales department is smiling for the picture. I wish them luck

Last edited by fietsbob; 06-03-13 at 08:29 PM.
fietsbob is offline  
Reply
Old 06-04-13 | 08:30 AM
  #3  
Senior Member
 
Joined: Jul 2009
Posts: 922
Likes: 2
From: Toronto, Ontario, Canada

Bikes: Wheeler Mtn bike, Strida 5.0, Tern Link Uno, FSIR Spin 2.0, Dahon Mu P8

look carefully at the pedals, I don't think you were meant to pedal it. Those are mainly there for a footrest and you let the motor do the moving.
Azreal911 is offline  
Reply
Old 06-04-13 | 08:51 AM
  #4  
Banned
 
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast

Bikes: 8

Oh, I see, the pedals have a freewheel in each crankarm..
fietsbob is offline  
Reply
Old 06-04-13 | 09:19 AM
  #5  
Senior Member
 
Joined: Aug 2005
Posts: 2,097
Likes: 8
From: San Rafael, California
Originally Posted by Azreal911
look carefully at the pedals, I don't think you were meant to pedal it. Those are mainly there for a footrest and you let the motor do the moving.
Pedaling looks to optional..

"The patent pending front pedaling technology allows riders to dynamically switch the front wheel crank arms from a resting position for comfortable cruising to an active pedaling position."
BruceMetras is offline  
Reply
Old 06-04-13 | 09:52 AM
  #6  
Senior Member
 
Joined: Feb 2012
Posts: 628
Likes: 7
From: Bangkok: hottest average temperature :(

Bikes: *1998 GT Forte Ti 700c, Totem KDS-D 26" fatbike, BirdyGT 18", Brompton M2LX 16"

Looks very comfy but with almost no pedaling advantage, I call it more electric scooter than bicycle.
I can see lots of fat lazy people cruising on these or renting them at resorts.
It's not an exercise device which might make it very successful.

Has there ever been a Penny Farthing type of bike with a gearing multiplier on the front wheel?
If the crank axles were separate from the wheel axle, couldn't identical gear ratios be added to both sides of the fork to gain pedaling efficiency?

Last edited by ttakata73; 06-04-13 at 09:55 AM.
ttakata73 is offline  
Reply
Old 06-04-13 | 10:05 AM
  #7  
Senior Member
 
Joined: Aug 2005
Posts: 2,097
Likes: 8
From: San Rafael, California
Originally Posted by ttakata73

Has there ever been a Penny Farthing type of bike with a gearing multiplier on the front wheel?
If the crank axles were separate from the wheel axle, couldn't identical gear ratios be added to both sides of the fork to gain pedaling efficiency?
You could run a 2 speed Schlumpf Drive
BruceMetras is offline  
Reply
Old 06-04-13 | 02:29 PM
  #8  
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 218
Likes: 2
Originally Posted by ttakata73
Has there ever been a Penny Farthing type of bike with a gearing multiplier on the front wheel?
A prototype not real bike:
https://blog.makezine.com/2009/08/29/...hioned-bicycl/

fwd-bwd is offline  
Reply
Old 06-04-13 | 04:53 PM
  #9  
jur
Senior Member
 
Joined: May 2005
Posts: 7,393
Likes: 10
From: Albany, WA
Originally Posted by ttakata73
Has there ever been a Penny Farthing type of bike with a gearing multiplier on the front wheel?
If the crank axles were separate from the wheel axle, couldn't identical gear ratios be added to both sides of the fork to gain pedaling efficiency?
https://www.wired.com/gadgetlab/2009/...e-sans-chaine/
jur is offline  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rajanningale
Electric Bikes
1
08-22-19 07:43 AM
Scooper
Electric Bikes
7
09-18-12 06:29 AM
gecho
Advocacy & Safety
12
07-26-12 11:46 PM
bmt074
Electric Bikes
9
04-22-10 06:13 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.