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 04-14-11, 01:26 PM   #1
Oramas
don't door me bro!
Thread Starter
 
Oramas's Avatar
 
Join Date: Oct 2010
Location: Brooklyn
Bikes: EAI Bareknuckle
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
50T Chainring

I just picked up some Omniums with a 50T chainring. The seller stated that it was "true track" but i'm curious what effect will a 50T have over what I've come to believe is a standard 48T chainring. Apparently the chainring is a vintage Sugino Mighty (somehow different then the current version, or so the seller stated). Would it be best to leave it on or switch it to a 48T? The seller was very animate about this chainring being worth a lot, NJS ect but i'm just interested in the difference of a 48T v 50T. About to purchase a cog but wanted to see what the more veteran forum members had to say.


Last edited by Oramas; 04-14-11 at 02:04 PM. Reason: because i'm stupid
Oramas is offline   Reply With Quote
Old 04-14-11, 01:30 PM   #2
hairnet
Fresh Garbage
 
hairnet's Avatar
 
Join Date: Apr 2009
Location: Los Angeles
Bikes:
Posts: 12,565
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 82 Post(s)
I don't understand what you're concerned about. For a given cog the 50 will give a slightly higher gearing than a 48

It looks cool so keep it

Last edited by hairnet; 04-14-11 at 01:35 PM.
hairnet is offline   Reply With Quote
Old 04-14-11, 01:48 PM   #3
yummygooey
i smell bacon
 
yummygooey's Avatar
 
Join Date: Mar 2010
Bikes: Geekhouse Deerfield, GT Edge Ti, Spooky Skeletor, TET Track, Ritchey P-650b, Bridgestone MB-3
Posts: 5,607
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Why would a chainring affect the chain line? Any effect due to thickness differences will be negligible.
yummygooey is offline   Reply With Quote
Old 04-14-11, 02:03 PM   #4
Oramas
don't door me bro!
Thread Starter
 
Oramas's Avatar
 
Join Date: Oct 2010
Location: Brooklyn
Bikes: EAI Bareknuckle
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I suppose I was just curious on the effect of a 50T vs 48T would have and why most builds I see have 48T.
Oramas is offline   Reply With Quote
Old 04-14-11, 02:14 PM   #5
yummygooey
i smell bacon
 
yummygooey's Avatar
 
Join Date: Mar 2010
Bikes: Geekhouse Deerfield, GT Edge Ti, Spooky Skeletor, TET Track, Ritchey P-650b, Bridgestone MB-3
Posts: 5,607
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Most crank sets I've seen come stock with 48t chainrings. Maybe it's just a manufacturer preference?

Changing the chainring size shouldn't change the chain line. It'll just change where your rear axle sits in the rear track end.
yummygooey is offline   Reply With Quote
Old 04-14-11, 02:16 PM   #6
hairnet
Fresh Garbage
 
hairnet's Avatar
 
Join Date: Apr 2009
Location: Los Angeles
Bikes:
Posts: 12,565
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 82 Post(s)
smaller than 52, larger than 42. It's a size that lets you get through the range of high to moderately low gears with cog sizes shops usually stock, that's my guess.
hairnet is offline   Reply With Quote
Old 04-14-11, 02:33 PM   #7
carleton
Elitist
 
carleton's Avatar
 
Join Date: Jul 2005
Location: Atlanta, GA
Bikes:
Posts: 13,361
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 168 Post(s)
It's a Sugino "Drillium" chainring. It has "S-50" stamped on it with no other markings, right?
__________________
Quote:
Originally Posted by gtrob View Post
Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.
carleton is offline   Reply With Quote
Old 04-14-11, 02:39 PM   #8
Oramas
don't door me bro!
Thread Starter
 
Oramas's Avatar
 
Join Date: Oct 2010
Location: Brooklyn
Bikes: EAI Bareknuckle
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by carleton View Post
It's a Sugino "Drillium" chainring. It has "S-50" stamped on it with no other markings, right?
why am i not surprised by this, but yes.

Last edited by Oramas; 04-14-11 at 02:44 PM. Reason: carleton is always causing /thread
Oramas is offline   Reply With Quote
Old 04-14-11, 02:48 PM   #9
carleton
Elitist
 
carleton's Avatar
 
Join Date: Jul 2005
Location: Atlanta, GA
Bikes:
Posts: 13,361
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 168 Post(s)
Quote:
Originally Posted by Oramas View Post
why am i not surprised by this, but yes.


It's a nice chainring. Keep it. If you choose to ride it, use a cog that is 1 tooth bigger than normal. If you usually run a 48/18, now run a 50/19. It will take up more chain, so consider that, too. A longer chain than is currently on your bike may be required.
__________________
Quote:
Originally Posted by gtrob View Post
Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.
carleton is offline   Reply With Quote
Old 04-14-11, 03:22 PM   #10
Oramas
don't door me bro!
Thread Starter
 
Oramas's Avatar
 
Join Date: Oct 2010
Location: Brooklyn
Bikes: EAI Bareknuckle
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by carleton View Post


If you choose to ride it, use a cog that is 1 tooth bigger than normal.
THIS was what I was trying to get at with my question regarding the chainline ect but was unable to articulate it.

When Carleton speaks, /thread follows.
Oramas is offline   Reply With Quote
Old 04-14-11, 03:25 PM   #11
hairnet
Fresh Garbage
 
hairnet's Avatar
 
Join Date: Apr 2009
Location: Los Angeles
Bikes:
Posts: 12,565
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 82 Post(s)
you'll like this

http://software.bareknucklebrigade.c...it.applet.html
hairnet is offline   Reply With Quote
Old 04-14-11, 03:46 PM   #12
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,762
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 217 Post(s)
I have an unused 48t Omnium chainring that I'd be willing to sell. Shoot me a PM if you want it.
__________________
Scrodzilla is offline   Reply With Quote
Old 04-14-11, 08:32 PM   #13
Oramas
don't door me bro!
Thread Starter
 
Oramas's Avatar
 
Join Date: Oct 2010
Location: Brooklyn
Bikes: EAI Bareknuckle
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by hairnet View Post
thanks for this!
Oramas is offline   Reply With Quote
Old 04-15-11, 05:05 PM   #14
martinus
Senior Member
 
martinus's Avatar
 
Join Date: Dec 2008
Bikes:
Posts: 939
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Because, all the
Quote:
Originally Posted by Oramas View Post
true
bad-arses ride 50/15. Oooo...
martinus is offline   Reply With Quote
Old 04-15-11, 05:14 PM   #15
xavier853
.
 
xavier853's Avatar
 
Join Date: May 2009
Location: Columbus
Bikes: Pegueot UO8, Tommaso Augusta
Posts: 2,027
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What's wrong with a 50t chainring? I run a 49t and want to go up.
xavier853 is offline   Reply With Quote
Old 04-15-11, 05:18 PM   #16
jim-bob
hateful little monkey
 
jim-bob's Avatar
 
Join Date: May 2003
Location: oakland, ca
Bikes:
Posts: 5,274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Go up one tooth on the chainring? Why bother?
jim-bob is offline   Reply With Quote
Old 04-15-11, 05:19 PM   #17
evilcryalotmore
モㄥ工匕モ 爪モ爪乃モ尺
 
evilcryalotmore's Avatar
 
Join Date: Feb 2010
Location: LA San Gabriel, California
Bikes: Custom frame
Posts: 2,137
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
on my road bike i have a 56 and i go low as 10 in the rear.
evilcryalotmore is offline   Reply With Quote
Old 04-15-11, 06:03 PM   #18
Squirrelli
GONE~
 
Join Date: Apr 2010
Bikes:
Posts: 6,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Last I checked your road bike had Sora and 10t- cassette doesn't exist.
Squirrelli is offline   Reply With Quote
Old 04-15-11, 06:11 PM   #19
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,762
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 217 Post(s)
Quote:
Originally Posted by jim-bob View Post
Go up one tooth on the chainring? Why bother?
This. You'd notice much more difference dropping a tooth on your cog.
__________________
Scrodzilla is offline   Reply With Quote
Old 04-15-11, 06:12 PM   #20
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,762
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 217 Post(s)
Quote:
Originally Posted by evilcryalotmore View Post
on my road bike i have a 56 and i go low as 10 in the rear.
__________________
Scrodzilla is offline   Reply With Quote
Old 04-15-11, 09:22 PM   #21
Corwings
Senior Member
 
Corwings's Avatar
 
Join Date: May 2010
Location: Camarillo, CA
Bikes:
Posts: 139
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by hairnet View Post
I didn't like this the first time I tried it... It killed Chrome
Corwings is offline   Reply With Quote
Old 04-16-11, 02:32 PM   #22
fuzz2050
Real Men Ride Ordinaries
 
fuzz2050's Avatar
 
Join Date: Sep 2008
Bikes:
Posts: 3,707
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Quote:
Originally Posted by Scrodzilla View Post
Maybe he has a folding 'road bike'. I'm to lazy to check
fuzz2050 is offline   Reply With Quote
Old 04-16-11, 02:40 PM   #23
Squirrelli
GONE~
 
Join Date: Apr 2010
Bikes:
Posts: 6,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by fuzz2050 View Post
Maybe he has a folding 'road bike'. I'm to lazy to check


I stand corrected! 9-26, such huge jumps.
Squirrelli is offline   Reply With Quote
Old 04-16-11, 09:03 PM   #24
martinus
Senior Member
 
martinus's Avatar
 
Join Date: Dec 2008
Bikes:
Posts: 939
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
From all the sarcastic comments, looks like you should be ok ... ( going to a 50, its maybe 3-4 GI more. )
martinus 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 07:06 PM.