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


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-08-12, 01:40 AM   #1
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Bike doesnt turn much on the left and turns dramatically on the right

Hi i only realised in the last few weeks that the front turning/rotation so different on the right and left. Is this normal? I don't know why it has taken me so long to see this or is there something i don't know about folding bikes?
Attached Images
File Type: jpg dscf4341.jpg (98.1 KB, 52 views)
File Type: jpg dscf4340.jpg (98.7 KB, 55 views)
rapattack is offline   Reply With Quote
Old 07-08-12, 03:17 AM   #2
jur
Senior Member
 
Join Date: May 2005
Bikes:
Posts: 6,807
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
The only thing I can think of is that the handlebars got twisted around by 360deg, wrapping the cables around the steering column, preventing rotation in one direction as they tighten up.
jur is offline   Reply With Quote
Old 07-08-12, 03:19 AM   #3
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
No its not the cables. Could it be something i have to adjust?
rapattack is offline   Reply With Quote
Old 07-08-12, 06:11 AM   #4
wahoonc
Senior Member
 
wahoonc's Avatar
 
Join Date: Jan 2005
Location: On the road-USA
Bikes: Giant Excursion, Raleigh Sports, Raleigh R.S.W. Compact, Motobecane? and about 20 more! OMG
Posts: 16,687
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What kind of bike and head set? I have had a headset where the lower cup was binding when turned to one side and not the other, turned out the cup was in a bit crooked and the piece on the fork was off the other way.

Aaron
__________________
Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(

ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.

"Cycling should be a way of life, not a hobby.
RIDE, YOU FOOL, RIDE!"
_Nicodemus

"Steel: nearly a thousand years of metallurgical development
Aluminum: barely a hundred
Which one would you rather have under your butt at 30mph?"
_krazygluon
wahoonc is offline   Reply With Quote
Old 07-08-12, 09:39 AM   #5
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
http://www.blindfreddyebikes.com.au/page4.php
Its the first bike on this page. I have a lithium battery set up though...upgraded some time ago
rapattack is offline   Reply With Quote
Old 07-08-12, 10:05 AM   #6
HGR3inOK 
Senior Member
 
Join Date: Apr 2009
Location: Oklahoma, U.S.A.
Bikes: Brompton H6L-X, Dahon Curve D3
Posts: 714
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by rapattack View Post
... the front turning/rotation ... [is] different on the right and left. Is this normal? ...
No, it is not normal. The first thing I would probably do to troubleshoot this issue would be to remove the front basket and, maybe, any other accessories (lights, computer, etc.) that have been added to the bike.

-HANK RYAN-
Norman, Oklahoma USA
__________________
DISCLOSURE: I have an ownership interest in a company that is an authorized dealer for Brompton.
HGR3inOK is offline   Reply With Quote
Old 07-08-12, 10:15 AM   #7
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks but this happens wether the basket is on or not. I only just put it on. Its just put on with cable ties as i don't have the proper mount stuff to put it on the right way. i can tell thats not the issue. I should make a video but not now as it is super late in the morning in australia and i need some sleep soon :0)
rapattack is offline   Reply With Quote
Old 07-08-12, 11:06 AM   #8
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,829
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 220 Post(s)
Go to a proper bike shop for a live mechanic seeing it in person..
fietsbob is offline   Reply With Quote
Old 07-08-12, 11:17 AM   #9
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks i am on a pension and can't afford that but when i get a chance will go to a community Bike Club...don't know when that will be though :0)
rapattack is offline   Reply With Quote
Old 07-08-12, 11:33 AM   #10
wahoonc
Senior Member
 
wahoonc's Avatar
 
Join Date: Jan 2005
Location: On the road-USA
Bikes: Giant Excursion, Raleigh Sports, Raleigh R.S.W. Compact, Motobecane? and about 20 more! OMG
Posts: 16,687
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Is it when the bike is under power or just pedaling? If under power it is called torque steer. If not under power, possibly a wheel/fork misalignment.

Aaron
__________________
Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(

ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.

"Cycling should be a way of life, not a hobby.
RIDE, YOU FOOL, RIDE!"
_Nicodemus

"Steel: nearly a thousand years of metallurgical development
Aluminum: barely a hundred
Which one would you rather have under your butt at 30mph?"
_krazygluon
wahoonc is offline   Reply With Quote
Old 07-09-12, 02:19 AM   #11
Poguemahone
Vello Kombi, baby
 
Poguemahone's Avatar
 
Join Date: Dec 2002
Location: Je suis ici
Bikes:
Posts: 5,057
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Could also be the headtube facing/headset installation. Eliminate the simplier to fix stuff first; this one is a bit of a pain. Do check the cable runs. I've seen what jur suggests occur.
__________________
"It's always darkest right before it goes completely black"

Waste your money! Buy my comic book!
Poguemahone is offline   Reply With Quote
Old 07-09-12, 02:49 AM   #12
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Its an ebike and i can ride without the motor or both. The motor and battery are on the back of the bike. I am going to the sydney Bike Club in two days :0)

Yeah no its nothing to do with cables. Hard for me to explain but i know its not that.
rapattack is offline   Reply With Quote
Old 07-09-12, 04:12 AM   #13
jur
Senior Member
 
Join Date: May 2005
Bikes:
Posts: 6,807
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
There are just a few things that could limit rotation... the external ones such as a reflector hitting somewhere because it is misaligned, would be easy to spot by careful inspection while turning the steering in the direction in which it binds.

If it binds with a clunk, it is likely to be something that hits against something else (like the reflector). If it just gets gradually more difficult, then I would call the bearing, assuming cables have been eliminated as a reason.

Eliminating all external possibilities, basically leaves only the headset bearings. That is a bike shop job if you lack the tools and know-how.
jur is offline   Reply With Quote
Old 07-09-12, 05:54 AM   #14
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Good news the handy neighbour turned up and it was that thing that is where the bike rotates that needed adjustment. Sorry not good at explaining and it did seem obvious but i am not very strong due to illness. I also thought the tool i have was not big enough to do the job...anyway its good news and i can go around corners now better than ever. Even my neighbour that has a talent for fixing cars didn't know why this occurs
rapattack is offline   Reply With Quote
Old 07-09-12, 08:44 AM   #15
Azreal911
Senior Member
 
Join Date: Jul 2009
Location: Toronto, Ontario, Canada
Bikes: Wheeler Mtn bike, Strida 5.0, Tern Link Uno, FSIR Spin 2.0, Dahon Mu P8
Posts: 856
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Glad you got everything fixed and in working order. But that's very weird that the headset can bind in such a way. Also since you are riding a pretty expensive E-bike and it's probably your main form of transportation, I would fold it up and bring it in with you whenever you can!
Azreal911 is offline   Reply With Quote
Old 07-09-12, 08:47 AM   #16
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yeah he unscrewed whatever the thing is and then turned it? then re tightened? Sorry both he and i didn't get why that worked. One of those puzzling things i guess
rapattack is offline   Reply With Quote
Old 07-09-12, 05:10 PM   #17
jur
Senior Member
 
Join Date: May 2005
Bikes:
Posts: 6,807
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
So it is the headset bearing. Sounds like the lock nut on top is/was not locked and the adjustment tightens up when turning to the right. That should not happen... something may be adrift.
jur is offline   Reply With Quote
Old 07-09-12, 09:24 PM   #18
Clownbike
Senior Member
 
Join Date: Jul 2007
Bikes:
Posts: 351
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by jur View Post
So it is the headset bearing. Sounds like the lock nut on top is/was not locked and the adjustment tightens up when turning to the right. That should not happen... something may be adrift.
Was thinking along the same lines. My guess was that the lock washer was missing between the lock nut and bearing cap(or whatever the technical term is). Turn it one way, tightens bearing. Turn it the other, loosens bearing. The lock washer is usually keyed to keep it from turning. If this is the case, I'd go over the entire bike with a fine tooth comb.
Clownbike is offline   Reply With Quote
Old 07-10-12, 08:34 AM   #19
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oh ok not sure what you mean as i just don't know enough about modern bikes. The bike has been in the shop many times since i have had it so maybe they didn't look at everything during its multiple stays! Ah well will see how i go with Bike Club tomorrow not that i think anyone there knows that much about this type of bike...its useful what you said though as i will push whoever i can get a hold of to look at everything.
rapattack is offline   Reply With Quote
Old 07-10-12, 11:06 AM   #20
Clownbike
Senior Member
 
Join Date: Jul 2007
Bikes:
Posts: 351
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by rapattack View Post
Oh ok not sure what you mean as i just don't know enough about modern bikes. The bike has been in the shop many times since i have had it so maybe they didn't look at everything during its multiple stays! Ah well will see how i go with Bike Club tomorrow not that i think anyone there knows that much about this type of bike...its useful what you said though as i will push whoever i can get a hold of to look at everything.
Check out Sheldon's reference to Threaded Headsets here - http://sheldonbrown.com/gloss_ha-i.html#headset

The Spacer between the Locknut and Threaded Top Race is keyed to a slot in the Steerer, preventing the locknut from tightening the top race. The keyed spacer may be missing from your bike, or was possibly replaced with a plain washer.
Clownbike is offline   Reply With Quote
Old 07-10-12, 11:10 AM   #21
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
ok i get what you mean. will check this out tomorrow as the bike is locked away and time for bed :0) thanks so much
rapattack is offline   Reply With Quote
Old 07-10-12, 01:27 PM   #22
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,829
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 220 Post(s)
Threaded headset adjustments require 2 wrenches,
The one that fits the adjustable top race, is thinner .
often 1/8" thick and a 36mm..
if stem is 1",
regular bikes usually 32mm .. stem is 7/8"[22.2mm]

Last edited by fietsbob; 07-10-12 at 01:30 PM.
fietsbob is offline   Reply With Quote
Old 07-10-12, 10:45 PM   #23
rapattack
Senior Member
Thread Starter
 
rapattack's Avatar
 
Join Date: Jul 2010
Location: Sydney
Bikes: EziGo zoom
Posts: 473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for the info. Will log into this forum when i get to bike club so they will know what to do or this will help them anyway if there is doubt :0)
rapattack is offline   Reply With Quote
Old 07-11-12, 04:31 PM   #24
Poguemahone
Vello Kombi, baby
 
Poguemahone's Avatar
 
Join Date: Dec 2002
Location: Je suis ici
Bikes:
Posts: 5,057
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by jur View Post
So it is the headset bearing. Sounds like the lock nut on top is/was not locked and the adjustment tightens up when turning to the right. That should not happen... something may be adrift.
Indeed. Stand over the bike and hold down the front brake. Shove the bike back and forth ; if you feel a click your headset is now too loose. It was certainly too tight at points in the rotation.
__________________
"It's always darkest right before it goes completely black"

Waste your money! Buy my comic book!
Poguemahone is offline   Reply With Quote
Old 07-11-12, 04:35 PM   #25
Hoshnasi
Senior Member
 
Hoshnasi's Avatar
 
Join Date: Oct 2006
Location: Cerritos, Ca.
Bikes:
Posts: 562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I was going to say you left arm HAD to be longer than your right.

Glad you're back on the road.
Hoshnasi 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 04:08 PM.