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


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-20-07, 07:51 PM   #1
nugenhipsta
2 mph so everyone sees me
Thread Starter
 
nugenhipsta's Avatar
 
Join Date: Jun 2006
Location: Phoenix, AZ
Bikes:
Posts: 67
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
this might be a noob question, but...

i am building my first singlespeed road bike. the bike (80's nishiki century) was originally an 18 speed, w/3 front chainrings. id like to use only the outer 52t ring. my question is, do spacers exist that will help the front ring line up with the rear cog? if not, what's a good method and what hardware should i use? any help/advice is much obliged. thanks.
nugenhipsta is offline   Reply With Quote
Old 02-20-07, 07:54 PM   #2
taken67
Senior Member
 
Join Date: Jul 2006
Location: Baltimore
Bikes:
Posts: 424
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
http://sheldonbrown.com/singlespeed.html
Start there young Padawan.
taken67 is offline   Reply With Quote
Old 02-20-07, 08:00 PM   #3
mander
Senior Member
 
Join Date: Sep 2006
Location: Van BC
Bikes:
Posts: 3,744
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You get shorter bb spindle daniel san.
mander is offline   Reply With Quote
Old 02-20-07, 08:23 PM   #4
jwind
right foot, left foot...
 
Join Date: Feb 2006
Bikes:
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mander
You get shorter bb spindle daniel san.

you may bet lucky... If yolu can, put the chain ring on the other side of the crank spider.
jwind is offline   Reply With Quote
Old 02-21-07, 01:24 AM   #5
dirtyphotons
antisocialite
 
dirtyphotons's Avatar
 
Join Date: Apr 2006
Bikes:
Posts: 3,385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by nugenhipsta
my question is, do spacers exist that will help the front ring line up with the rear cog? if not, what's a good method and what hardware should i use? any help/advice is much obliged. thanks.
the good news is that you can use regular washers for spacers

the bad news is that you may need to redish your wheel.

but its not so bad, you'll get practice truing a wheel.

sheldon has the answers.
dirtyphotons is offline   Reply With Quote
Old 02-21-07, 07:25 AM   #6
blickblocks
.
 
blickblocks's Avatar
 
Join Date: Sep 2006
Bikes:
Posts: 3,861
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If you went with a bolt on cog you'd have a lot of flexibility with the chainline. You'd just add a washer or take one out till it's perfect.
__________________
http://blicksbags.com/
blickblocks is offline   Reply With Quote
Old 02-21-07, 05:20 PM   #7
nugenhipsta
2 mph so everyone sees me
Thread Starter
 
nugenhipsta's Avatar
 
Join Date: Jun 2006
Location: Phoenix, AZ
Bikes:
Posts: 67
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by dirtyphotons
the good news is that you can use regular washers for spacers

the bad news is that you may need to redish your wheel.

but its not so bad, you'll get practice truing a wheel.
regular washers? superb...
btw im using a coaster brake rear wheel
nugenhipsta is offline   Reply With Quote
Old 02-21-07, 05:37 PM   #8
Landgolier
THIS SPACE FOR RENT
 
Join Date: Jan 2006
Bikes:
Posts: 2,849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Road triples usually have a 50-45-40 chainline, so the outer position probably isn't happening. You can move the 52 to the middle, but you will still need 3mm of spacers or a new bottom bracket. 3mm is a crapton of spacers and 20 year old road bottom brackets don't tend to be in the greatest shape, I would spring the $20 for a new bottom bracket unless you think the inner ring mounts aren't clearing by 3mm now. This requires some measuring and figgerin' that Sheldon explains pretty well.
Landgolier is offline   Reply With Quote
Old 02-21-07, 07:26 PM   #9
Zum1
brother's keeper
 
Zum1's Avatar
 
Join Date: Nov 2006
Location: ill-adelphia
Bikes: Ross Carrera, Cayne Uno, Surly Steamroller
Posts: 115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I ran into the same issue with my first conversion (nostalgic feelings wash over me as the music swells and the image dissolves into memory) I used 1/4" nuts as my spacers as opposed to washers and 1/4" stove bolts as opposed to the cam or chainring bolts. I used nylocks to secure the chainring and ground down theremaining bolts leaving one thread thickness on the exterior of the nylock. go get em boy!
Zum1 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 09:50 PM.