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 04-05-05, 08:55 PM   #1
drolldurham
ogre
Thread Starter
 
Join Date: Oct 2004
Location: arlington, va
Bikes: surly steamroller fixie, '90 cannondale SR 800
Posts: 399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
steamroller chainring clearance

right now on my steamroller i've got 42:14. i want to go to a smaller ratio, but with bigger gears. the thing is, right now, my 42t up in front is REALLY close to the chainstay. it is on the inside of the spider, and i know i can put the new one (assuming i get a bigger chainring) on the outside of the spider to get more clearance Clarence, buuuut then my chainline would be all messed up.... would i need to adjust the hub in order to adjust the chainline's vector Victor?

by the way i've got a surly hub in the back.

so does anyone have a big chainring on a steamroller with a surly hub, and if so howsit done?

roger Roger.
drolldurham is offline   Reply With Quote
Old 04-05-05, 09:03 PM   #2
pitboss
cxmagazine dot com
 
pitboss's Avatar
 
Join Date: Jun 2003
Location: WI
Bikes: Titus road, Fort CX
Posts: 8,269
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I run a 48 - I have a sugino 75 BB and crankset. No problems for me. See this thread:
problems w/ sugino75 cranks on steamroller

good info there for sure.
pitboss is offline   Reply With Quote
Old 04-05-05, 09:05 PM   #3
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Bikes:
Posts: 18,555
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
I've got a 46 ring on my steamroller, but on a track crankset.
You can mount your new bigger ring on the inside using a longer BB spindle or on the outside with a shorter BB spindle....either way should give you a close enough chainline.
roadfix is offline   Reply With Quote
Old 04-05-05, 09:12 PM   #4
drolldurham
ogre
Thread Starter
 
Join Date: Oct 2004
Location: arlington, va
Bikes: surly steamroller fixie, '90 cannondale SR 800
Posts: 399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by The Fixer
I've got a 46 ring on my steamroller, but on a track crankset.
You can mount your new bigger ring on the inside using a longer BB spindle or on the outside with a shorter BB spindle....either way should give you a close enough chainline.
it's not the crank clearance or the spindle length that's the issue. the issue is the chainline. if i move my chainring outboard of the spider, the chainline will be wiggidy-whack
drolldurham is offline   Reply With Quote
Old 04-05-05, 09:31 PM   #5
baxtefer
Cornucopia of Awesomeness
 
baxtefer's Avatar
 
Join Date: Oct 2004
Location: not where i used to be
Bikes:
Posts: 4,847
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
do you have a new steamroller, or one of the old boston baked bean brown ones.

The new gray/charcoal steamrollers with the shaped chainstays are supposed to have clearance for a 50T ring while maintaining chainline.
baxtefer is offline   Reply With Quote
Old 04-05-05, 09:39 PM   #6
BostonFixed
Banned.
 
Join Date: Oct 2004
Bikes:
Posts: 4,418
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by drolldurham
right now on my steamroller i've got 42:14. i want to go to a smaller ratio, but with bigger gears.
I don't get it. Why bigger gears? You are just complicating things here.

You want an easier to pedal gear? Then increase rear cog size and/or decrease chain ring size.
You want a harder to pedal gear? Reduce the rear cog size and/or chainring size.

You should be able to make most gear changes by jsut swapping out rear cogs, unless you REALLY want to fine tune your gearing to within +/- 1 gear inch.

Last edited by BostonFixed; 04-05-05 at 09:44 PM.
BostonFixed is offline   Reply With Quote
Old 04-05-05, 09:42 PM   #7
cousinl
Junior Member
 
Join Date: Apr 2004
Bikes:
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm runnung 38/14. Had the stuff lying around. Its been working well.
cousinl is offline   Reply With Quote
Old 04-05-05, 09:47 PM   #8
drolldurham
ogre
Thread Starter
 
Join Date: Oct 2004
Location: arlington, va
Bikes: surly steamroller fixie, '90 cannondale SR 800
Posts: 399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by BostonFixed
I don't get it. Why bigger gears? You are just complicating things here.

You want an easier to pedal gear? Then increase rear cog size and/or decrease chain ring size.
You want a harder to pedal gear? Reduce the rear cog size and/or chainring size.

You should be able to make most gear changes by jsut swapping out rear cogs, unless you REALLY want to fine tune your gearing to within +/- 1 gear inch.
yeah yeah i know, i'm just eating up all the stuff i hear about bigger drivetrains causing less wear, looking cool and "feeling good"
drolldurham is offline   Reply With Quote
Old 04-05-05, 09:50 PM   #9
BostonFixed
Banned.
 
Join Date: Oct 2004
Bikes:
Posts: 4,418
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by drolldurham
yeah yeah i know, i'm just eating up all the stuff i hear about bigger drivetrains causing less wear, looking cool and "feeling good"
The wear issue is a VERY minimal factor; it's not like your drivetrain is goind to last 2x longer with bigger rings/cogs...
As for the looking cool part; that's BS. Carry a pie in one hand and you will look cool no matter you ring/cog size.
The feeling good part is also minimal; there's not too much of a difference in feel.

This just seems pointless to me; as bigger rings and cogs just cost more money....
BostonFixed is offline   Reply With Quote
Old 04-05-05, 11:03 PM   #10
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Bikes:
Posts: 18,555
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Quote:
Originally Posted by drolldurham
if i move my chainring outboard of the spider, the chainline will be wiggidy-whack
That's where you could use a shorter BB... but not too short where your cranks come awfully close to the chainstays.
roadfix is offline   Reply With Quote
Old 04-05-05, 11:09 PM   #11
ryan_c
troglodyte
 
ryan_c's Avatar
 
Join Date: Jul 2004
Location: the tunnels
Bikes: Soma DoubleCross, Surly Steamroller, various others
Posts: 1,284
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I've got a 49T on a baked bean steamroller (supposedly less clearance!) w/ no problems.
ryan_c is online now   Reply With Quote
Old 04-06-05, 02:24 AM   #12
HexagonSun
Happy Cycling
 
HexagonSun's Avatar
 
Join Date: Dec 2003
Location: SF
Bikes: bareknuckle, bomber pro, 3Rensho SR, nagasawa special
Posts: 417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i have a 48T on a baked beaner
HexagonSun is offline   Reply With Quote
Old 04-06-05, 05:57 AM   #13
Miracle Whip
The Alternative Dressing
 
Join Date: Jan 2004
Location: In the condiments section of your local grocer
Bikes:
Posts: 169
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by The Fixer
That's where you could use a shorter BB... but not too short where your cranks come awfully close to the chainstays.
If there is no clearance for the chainring, it doesn't matter.
Miracle Whip is offline   Reply With Quote
Old 04-06-05, 07:42 AM   #14
jordache
Senior Member
 
jordache's Avatar
 
Join Date: Sep 2004
Bikes:
Posts: 129
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by baxtefer
The new gray/charcoal steamrollers with the shaped chainstays are supposed to have clearance for a 50T ring while maintaining chainline.
Yeah, I run a 50.
jordache is offline   Reply With Quote
Old 04-06-05, 10:21 AM   #15
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Bikes:
Posts: 18,555
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Quote:
Originally Posted by Miracle Whip
If there is no clearance for the chainring, it doesn't matter.
Hmmm.....I see plenty more room. Maybe I'm missing something here.... Perhaps my Campy track hub's chainline is further out compared to the Surly hub's...?

Last edited by roadfix; 04-06-05 at 10:33 AM.
roadfix is offline   Reply With Quote
Old 04-06-05, 12:57 PM   #16
daveIT
F*** Corporate Beer
 
daveIT's Avatar
 
Join Date: Mar 2005
Location: Anchorage
Bikes: On-OneIROOlympiaYetiLeMondZanella
Posts: 328
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by BostonFixed
Carry a pie in one hand and you will look cool no matter you ring/cog size.
Thanks, man. Almost shot beer out of my nose.
daveIT 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 02:30 PM.