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 06-02-10, 02:00 AM   #1
PDXaero
French threaded
Thread Starter
 
PDXaero's Avatar
 
Join Date: Aug 2008
Location: Portland, OR.
Bikes: many
Posts: 1,225
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
a foray into folders (with questions)

Bought my first folding bike today and I am excited.
Its a generic 1990 italian made 20" folder branded as a peugeot in okay condition that I got for $60.
Upon first riding I noticed some issues.
1. Internal 3 speed SA hub is not locking into gears and won't hit first.
2. Has brand new 1 3/4"knobby tires, unfortuantely I need some narrower slicks as its destined for city.
3. Oh the sizes. 20.8 stem, 24.5 bars, its all gotta go.
4. The brakes are a drag, compressionless housing would help but I think new calipers that don't flex will be the best investment.

My solutions.
1. Complete tear down of the hub and cleaing and greasin leaves the bike shifting better but still not hitting first gear, should I focus on the shifter console?
2. I'm thinking of alex r390s any advice? I have never delved into 20" rims but will likely have my wheel guy cut me some spokes so I can build them myself (on the cheap)
3. This is my big worry, I am thinking of using a bmx seatpost (20.8 with 22.4 clamp section) for a threadless style fork extension, then using 22.2->25.4 shims to fit it for a 1inch threadless stem. Sound safe?
4. Tektro BMX sidepulls? This is last on my list as the current brakes work and will certainly get better with new levers and cables.

Any guidance is much appreciated. Pictures up tomorrow when there is sunlight.
(Also very glad I didn't splurge on the NS-22 folder with 22" wheels, and hence more issues)
P.S. extra kudos for cheap fixes, this is just my bad weather/ no clipless pedals bike.
Edit: link to the catalog on jims website
http://mysite.verizon.net/vzerndgo/s...oomPeugeot.JPG

Last edited by PDXaero; 06-02-10 at 02:15 AM.
PDXaero is offline   Reply With Quote
Old 06-02-10, 05:31 AM   #2
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: 16,768
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
I would bet that you shifting issue is either cable adjustment (look about halfway down the page) or possibly the wrong indicator chain. I get my 20" tires from the lowrider guys.

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 06-02-10, 05:33 AM   #3
thatsut
If it dont fold frankly..
 
thatsut's Avatar
 
Join Date: Jul 2007
Bikes:
Posts: 251
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
K.I.S.S

without knowing more specifics its hard for me to give detailed help, but the most important thing i realise about folding bikes is....

You may not need what you want, ride it for a while before you just want to change stuff. Hope this helps!
thatsut is offline   Reply With Quote
Old 06-02-10, 02:56 PM   #4
PDXaero
French threaded
Thread Starter
 
PDXaero's Avatar
 
Join Date: Aug 2008
Location: Portland, OR.
Bikes: many
Posts: 1,225
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Dbl post

Last edited by PDXaero; 06-02-10 at 09:51 PM.
PDXaero is offline   Reply With Quote
Old 06-02-10, 03:18 PM   #5
PDXaero
French threaded
Thread Starter
 
PDXaero's Avatar
 
Join Date: Aug 2008
Location: Portland, OR.
Bikes: many
Posts: 1,225
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thannks for the advice. I can get by on rough tires for the time being even though they feel slow and bumpy. I want some drop bars or even just bullhorn bars so I have more than one hand position. The upright bars may be functional but even my short trips in the rain are still 5 miles or so.

As far as adjusting the 3 speed goes, I could get the hub to engage all gears when it was off the bike but using the shifter just won't do it. I have tried the barrel adjuster but it just feels like I am putting more tension on the cable without the chain pulling the hub.
I just can't tell if the problem is in how much the cable is pulling on the chain or how much the chain is releasing from the hub.
PDXaero is offline   Reply With Quote
Old 06-02-10, 04:03 PM   #6
badrad
Senior Member
 
badrad's Avatar
 
Join Date: Jan 2010
Bikes:
Posts: 420
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by PDXaero View Post
Thannks for the advice. I can get by on rough tires for the time being even though they feel slow and bumpy. I want some drop bars or even just bullhorn bars so I have more than one hand position. The upright bars may be functional but even my short trips in the rain are still 5 miles or so.

As far as adjusting the 3 speed goes, I could get the hub to engage all gears when it was off the bike but using the shifter just won't do it. I have tried the barrel adjuster but it just feels like I am putting more tension on the cable without the chain pulling the hub.
I just can't tell if the problem is in how much the cable is pulling on the chain or how much the chain is releasing from the hub.
check your shifter cable for any rust. it may shift easier when removed from the bike, but rust will increase friction once the cable housing goes around bends and curves. it may be as simple as removing the cable, cleaning and lubricating, or may need to change the cable/housing.
badrad is offline   Reply With Quote
Old 06-02-10, 04:05 PM   #7
Dynocoaster
Senior Member
 
Join Date: May 2004
Location: Pacific Northwest
Bikes: Too many....................
Posts: 3,074
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
http://www.utahtrikes.com/PRODINFO-S...Wheel_Kit.html


Upgrade to this, I paid about $10 in shipping.

Last edited by Dynocoaster; 06-02-10 at 04:09 PM.
Dynocoaster is offline   Reply With Quote
Old 06-03-10, 04:22 AM   #8
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: 16,768
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
Quote:
Originally Posted by PDXaero View Post
Thannks for the advice. I can get by on rough tires for the time being even though they feel slow and bumpy. I want some drop bars or even just bullhorn bars so I have more than one hand position. The upright bars may be functional but even my short trips in the rain are still 5 miles or so.

As far as adjusting the 3 speed goes, I could get the hub to engage all gears when it was off the bike but using the shifter just won't do it. I have tried the barrel adjuster but it just feels like I am putting more tension on the cable without the chain pulling the hub.
I just can't tell if the problem is in how much the cable is pulling on the chain or how much the chain is releasing from the hub.
Try oiling/greasing the cable and housing, also does the bike flex when you are pedaling? That can do some interesting things to shifting.

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
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 11:37 AM.