Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Electric Bikes Here's a place to discuss ebikes, from home grown to high-tech.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-10-10, 10:26 PM   #1
Mike B.
Senior Member
Thread Starter
 
Mike B.'s Avatar
 
Join Date: Apr 2008
Location: Dodge City, KS.
Bikes: Schwinn, World Avenue One
Posts: 60
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Do I need steel?

I have a Schwinn bicycle. The frame and forks is an aluminum alloy, anyways it is not steel.

I've heard that it's not a good idea to convert an aluminum framed bike into an electric. Is that true? I'm tempted to try it anyways. I really don't want to buy a new bicycle, just to convert it, when I already have one that may work. (Yep...you guessed it...I'm a tight wad.)

Is a steel frame (forks) really necessary?

What's your experience?

Thanks!
Mike B. is offline   Reply With Quote
Old 04-10-10, 11:04 PM   #2
cvenstrom
Junior Member
 
Join Date: Aug 2009
Bikes:
Posts: 23
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Steel

4/10/10

For what it is worth. I had my 1200 W Cyclone motor mount welded to my Aluminum frame Diamond Back Recoil mountain bike. It is a 3 wheel chain drive system. I am very happy with the bike. I am still have some issues with my kit; I burned up a controller after less than 150 miles & I am disappointed how it takes the hills. It is great on relatively flat paved bike paths.

Carlsbad Carl
cvenstrom is offline   Reply With Quote
Old 04-11-10, 01:34 AM   #3
morph999 
Senior Member
 
Join Date: Jan 2009
Bikes:
Posts: 499
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Are you sure your Schwinn is not steel? Most are I think. If it's Aluminum 6061, that's steel.
morph999 is offline   Reply With Quote
Old 04-11-10, 07:48 AM   #4
rscamp
Senior Member
 
rscamp's Avatar
 
Join Date: Jun 2008
Bikes:
Posts: 251
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by morph999 View Post
Are you sure your Schwinn is not steel? Most are I think. If it's Aluminum 6061, that's steel.
6061 is an aluminum alloy.

The issue with aluminum isn't strength alone. The failure mode can be catastrophic...
rscamp is offline   Reply With Quote
Old 04-11-10, 09:32 AM   #5
Mike B.
Senior Member
Thread Starter
 
Mike B.'s Avatar
 
Join Date: Apr 2008
Location: Dodge City, KS.
Bikes: Schwinn, World Avenue One
Posts: 60
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by rscamp View Post
6061 is an aluminum alloy.

The issue with aluminum isn't strength alone. The failure mode can be catastrophic...
I'm sure it's not steel. A magnet will not stick to it. I've heard that steel is more flexible than aluminum, which is needed to handle the torque. Is that right?
Mike B. is offline   Reply With Quote
Old 04-11-10, 01:50 PM   #6
rscamp
Senior Member
 
rscamp's Avatar
 
Join Date: Jun 2008
Bikes:
Posts: 251
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Mild or tempered steel flexes and yields (deforms) more before failure which gives you more warning. The aluminum is more prone to sudden fracture. If this occurs, the result can be nasty - I would think the rider would take to the air over the handlebars...
rscamp is offline   Reply With Quote
Old 04-11-10, 02:43 PM   #7
CowtownPeddler
Senior Member
 
CowtownPeddler's Avatar
 
Join Date: Feb 2010
Location: Calgary
Bikes: Old Norco frame in conversion process
Posts: 110
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My Katmandu frame is all Aluminum. I decided to buy the rear wheel conversion and it's been working just fine. Sometimes it worries me, that seems to be a lot of weight, but so far no issues.

I wouldn't use a front wheel drive kit.
CowtownPeddler is offline   Reply With Quote
Old 04-11-10, 03:07 PM   #8
yopappamon
Senior Member
 
Join Date: Mar 2010
Location: Tustin, CA
Bikes:
Posts: 206
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My Giant Suede is aluminum so I went with the rear drive amped system with a torque arm.
yopappamon is offline   Reply With Quote
Old 04-11-10, 06:23 PM   #9
Mike B.
Senior Member
Thread Starter
 
Mike B.'s Avatar
 
Join Date: Apr 2008
Location: Dodge City, KS.
Bikes: Schwinn, World Avenue One
Posts: 60
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
So, would anyone happen to have a link(s) to rear wheel conversion kits? I have no idea, as to what company would be producing a good product.

Thanks!
Mike B. is offline   Reply With Quote
Old 04-11-10, 08:56 PM   #10
morph999 
Senior Member
 
Join Date: Jan 2009
Bikes:
Posts: 499
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
the nine continent are pretty good motors.

ampedbikes.com
e-bikekit.com

both use nine continent motors.

Hightekbikes.com uses aotema motors and those are pretty good too.

http://ebikes.ca has a lot of different motors to choose from.

If you want some decent lifepo4 batteries that aren't too expensive, check out the "looking for battery recommendation" thread here in this forum.
http://www.bikeforums.net/showthread...ecommendations
They were dirt cheap, about $104 per 12v pack but they raised prices a little but they are still a good buy at $120 per 12v pack. That thread also tells you what to buy and how to charge them properly so that you don't destroy any cells.

Last edited by morph999; 04-11-10 at 08:59 PM.
morph999 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 01:31 AM.