Motorized Bicycle: Engine Kit Forum  

Sponsors



Go Back   Motorized Bicycle: Engine Kit Forum > Motorized Bicycle Mechanical Components > Hubs, Gearboxes and Sprockets

Hubs, Gearboxes and Sprockets Can't find 'em, grind em - hubs and transmissions, problems and modifications to make your motorized bicycle run smooth and trouble free

Reply
 
Thread Tools Display Modes
  #1  
Old 08-05-2009, 06:48 PM
Humsuckler's Avatar
Humsuckler Humsuckler is offline
Motorized Bicycle Elite Member
 
Join Date: Jul 2009
Location: Ontario
Posts: 458
Default will a sturmey archer 3 speed hub hold up to motored biking?

i cant afford to shell out over sixty bucks for a new back wheel, and i happen to have an old wheel with a sturmey archer aw hub on it that i could put togeather cheaper and probley even get the gears working.

if your using one of these hubs, let me know how they hold up.
Reply With Quote
Sponsored Links
  #2  
Old 08-05-2009, 06:57 PM
lennyharp's Avatar
lennyharp lennyharp is offline
Motorized Bicycle Elite Member
 
Join Date: Jul 2008
Location: Mesa Arizona
Posts: 432
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

they break easily because of lots of small fragile parts that are not reliable for most cyclists. Spooky Tooth is selling them for $50.00.
__________________
LennyHarp of Lenny's Bikes & Things
http://lennyh.com
The true value of a man is not judged by what he has, but rather by what he can do without.
"We are what we repeatedly do. Excellence, then, is not an action, but a habit." -- Aristotle

Last edited by lennyharp; 08-05-2009 at 07:03 PM. Reason: add link
Reply With Quote
  #3  
Old 08-05-2009, 08:38 PM
joewlms3 joewlms3 is offline
Motorized Bicycle Senior Member
 
Join Date: May 2009
Location: south carolina
Posts: 77
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

well that sucks to hear
i got the three speed on my bike planning to run the shift kit through it
i guess if it explodes ill save up for the nuvinci


hope it lasts a little while
Reply With Quote
  #4  
Old 08-05-2009, 08:59 PM
Humsuckler's Avatar
Humsuckler Humsuckler is offline
Motorized Bicycle Elite Member
 
Join Date: Jul 2009
Location: Ontario
Posts: 458
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

for the record on this post, im not looking to run the engine to the sturmeys drive sprocket, my only concern is the constant high speed freewheeling perhaps disentegrating things. if its always oiled up i dont think ill have a problem? i definitly wouldnt run a shift kit through one, i think it would gernade
Reply With Quote
  #5  
Old 08-05-2009, 09:22 PM
2door's Avatar
2door 2door is offline
Super Moderator
 
Join Date: Sep 2008
Location: Littleton, Colorado
Posts: 7,587
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

Humsuckler,
The old S.A. hub should server you just fine. The engine puts no stress or strain on the bike hub. Unless of course you plan to run a shift kit. The motor torque is only applied to the spokes, rim and tire.
Tom
__________________
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
Reply With Quote
  #6  
Old 08-05-2009, 09:25 PM
Humsuckler's Avatar
Humsuckler Humsuckler is offline
Motorized Bicycle Elite Member
 
Join Date: Jul 2009
Location: Ontario
Posts: 458
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

awesome. thanks alot 2door thats pretty much all i need to hear
Reply With Quote
  #7  
Old 08-05-2009, 09:30 PM
azbill's Avatar
azbill azbill is offline
Motorized Bicycle Elite Member
 
Join Date: May 2008
Location: Fountain Hills, Arizona
Posts: 2,784
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

I watched Roland from spookytooth grenade his jack-shaft driven 3spd hub at this years deathrace...
they don't hold up to the torque of these little engines
__________________
Bill
EZ Motorbike Dealer - Fountain Hills, AZ
www.ezmotorbike.com
EZ Motorbike of Fountain Hills
azgrampa@gmail.com
Reply With Quote
  #8  
Old 08-05-2009, 10:11 PM
joewlms3 joewlms3 is offline
Motorized Bicycle Senior Member
 
Join Date: May 2009
Location: south carolina
Posts: 77
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

that really is bad news for me
Reply With Quote
  #9  
Old 08-05-2009, 10:53 PM
FileStyle's Avatar
FileStyle FileStyle is offline
Motorized Bicycle Elite Member
 
Join Date: May 2008
Location: Decatur,IL
Posts: 710
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

Quote:
Originally Posted by azbill View Post
I watched Roland from spookytooth grenade his jack-shaft driven 3spd hub at this years deathrace...
they don't hold up to the torque of these little engines
so lets say your running a 3 speed occ rear hub, do you think that wil hold? I would like to plan a chopper build and was wondering about that!
__________________
FileStyleCycles
Reply With Quote
  #10  
Old 08-05-2009, 11:17 PM
Humsuckler's Avatar
Humsuckler Humsuckler is offline
Motorized Bicycle Elite Member
 
Join Date: Jul 2009
Location: Ontario
Posts: 458
Default Re: will a sturmey archer 3 speed hub hold up to motored biking?

the truth is, planetary 3 speeds are designed for pedal power, arguably (and i will argue it) you can put more pressure with your two feet on pedals than the small 5hp engine can however, leg power is spiky, and not constant.

if you baby the 3 speed, and be mindful to shift the gears with zero load it may hold up, but common sence says that it wont, and shouldnt.

now, if you use a regular clamshell and leave the 3 speed to your legs you shouldnt have a problem so long as the spokes are all good to go and you oil the hub with gear oil every second day.

moving parts wear out, and moving parts break when you overstress them, there is a middle ground tho.
Reply With Quote
Reply

Thread Tools
Display Modes

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 -5. The time now is 04:56 PM.


Sponsors

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2012, vBulletin Solutions, Inc.
Motorized Bicycle Engine Kit Forum