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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 09-21-11, 03:15 PM   #1
Paul Barnard
For The Fun of It
Thread Starter
 
Join Date: May 2007
Location: Louisissippi Coast
Bikes: Garage full of bikes
Posts: 2,179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Track Bike Crankset on Road Bike

I am tinkering with a commuter. I have a road bike frame with a 130mm rear dropout. For the sake of simplicity, I want to run an 11-32 rear cassette with a single 44 or 46 tooth single front sprocket crank. Can I run a track bike or SS single sprocket front crank. I guess the concern would be spacing issues off the BB. What should I look for in a rear derailleur?

Thanks!
Paul Barnard is offline   Reply With Quote
Old 09-21-11, 03:24 PM   #2
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Bikes: Several, mostly not name brands.
Posts: 16,360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 56 Post(s)
Shouldn't be a problem, although if the chain unships frequently you may want to run a front derailleur just to keep the chain on the chainring. Just use whatever rear derailleur is currently on the bike. You may want to adjust the chain length.
JohnDThompson is offline   Reply With Quote
Old 09-21-11, 03:38 PM   #3
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Bikes:
Posts: 5,922
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
A lot of track cranks come with 1/8" chainrings which will not be compatible with mutiple rear gears. Just make sure your chainring is compatible with whatever chain you need to use for the cassette.
Dan Burkhart is offline   Reply With Quote
Old 09-21-11, 03:47 PM   #4
Paul Barnard
For The Fun of It
Thread Starter
 
Join Date: May 2007
Location: Louisissippi Coast
Bikes: Garage full of bikes
Posts: 2,179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Dan, I was just about to post about the chain compatibility. Is their any chainring/chain terminology I need to look for
Paul Barnard is offline   Reply With Quote
Old 09-21-11, 06:12 PM   #5
sideshow_bob
Senior Member
 
Join Date: Jan 2008
Bikes:
Posts: 295
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The width of the front ring isn't dependent on the crankset.

Just buy a 3/32" front ring. The only thing to look for, is most track cranks are 144BCD most Shimano compatible road rings are 130BCD, there are plenty of 144BCD 3/32" rings available though.
sideshow_bob is offline   Reply With Quote
Old 09-21-11, 06:25 PM   #6
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Bikes:
Posts: 5,922
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Quote:
Originally Posted by sideshow_bob View Post
The width of the front ring isn't dependent on the crankset.

Just buy a 3/32" front ring. The only thing to look for, is most track cranks are 144BCD most Shimano compatible road rings are 130BCD, there are plenty of 144BCD 3/32" rings available though.
Understood, but cranksets often come with the chainring. I was merely suggesting that the OP be armed with that knowlege before pulling the trigger.
Dan Burkhart is offline   Reply With Quote
Old 09-21-11, 09:43 PM   #7
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,768
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 208 Post(s)
chainrings for older Campag road cranks are 144, 42t and upward.

Sugino made compatible ones, too , softer alloy, less money..

Last edited by fietsbob; 10-04-11 at 06:43 PM.
fietsbob is online now   Reply With Quote
Old 09-22-11, 06:30 AM   #8
Paul Barnard
For The Fun of It
Thread Starter
 
Join Date: May 2007
Location: Louisissippi Coast
Bikes: Garage full of bikes
Posts: 2,179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
What should I shoot for in BB width to try to center the front ring on the rear cassette? And one more question do track cranksets typically use standard road bike pedals or the larger diameter BMX type?

Last edited by Paul Barnard; 09-22-11 at 06:38 AM.
Paul Barnard is offline   Reply With Quote
Old 09-22-11, 07:25 AM   #9
goatalope
Biking Viking.
 
goatalope's Avatar
 
Join Date: Nov 2007
Location: Camp Hill, PA
Bikes: '01 Lemond Buenos Aires, '11 Specialized Stumpjumper FSR, 70s Austro Daimler Inter 10, 80s Motobecane Mirage 10 Fixed Gear
Posts: 317
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I did something very similar with my bike. However, I just used a double and ground off all the teeth on the large chainring. That way I could commute with pants without worrying about ripping up my pant leg.

I have a 44t and a 12-32 and it works well.
goatalope is offline   Reply With Quote
Old 10-04-11, 10:04 AM   #10
Paul Barnard
For The Fun of It
Thread Starter
 
Join Date: May 2007
Location: Louisissippi Coast
Bikes: Garage full of bikes
Posts: 2,179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
I have the chain/chainring/cassette issue all figured out. I do wonder though how I can determine how wide of a bottom bracket I will need so that my chainline remains centered as much as possible. Can anyone help me figure that out?

And another question. Can I use v brake levers with road brakes?

Thanks.
Paul Barnard is offline   Reply With Quote
Old 10-04-11, 10:26 AM   #11
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Quote:
Originally Posted by Paul Barnard View Post
I have the chain/chainring/cassette issue all figured out. I do wonder though how I can determine how wide of a bottom bracket I will need so that my chainline remains centered as much as possible. Can anyone help me figure that out?

And another question. Can I use v brake levers with road brakes?

Thanks.
You want the chainring centered over the cassett, either inline with the middle cog (7 or 9-speed) or inline with the gap between the two cogs bracketing the center line (6,8,10-speed). The spindle length will depend on what crank you choose.

V-brake levers pull more cable and have less leverage that the levers made for caliper road brakes so they will operate the brakes but require a lot more hand pressure to stop at a given rate. If you ride in a flat area and have strong hands they may be acceptable.
HillRider is offline   Reply With Quote
Old 10-04-11, 11:04 AM   #12
Paul Barnard
For The Fun of It
Thread Starter
 
Join Date: May 2007
Location: Louisissippi Coast
Bikes: Garage full of bikes
Posts: 2,179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Quote:
Originally Posted by HillRider View Post
You want the chainring centered over the cassett, either inline with the middle cog (7 or 9-speed) or inline with the gap between the two cogs bracketing the center line (6,8,10-speed). The spindle length will depend on what crank you choose.

V-brake levers pull more cable and have less leverage that the levers made for caliper road brakes so they will operate the brakes but require a lot more hand pressure to stop at a given rate. If you ride in a flat area and have strong hands they may be acceptable.
Thanks for he reply. Is there any way to tell what width I will need with this crank?

http://www.ebay.com/itm/FIXED-GEAR-F...item19c9492817
Paul Barnard is offline   Reply With Quote
Old 10-04-11, 06:08 PM   #13
zukahn1
Senior Member
 
zukahn1's Avatar
 
Join Date: Oct 2011
Location: Fairplay Co
Bikes: Current 79 Nishiki Royal, Jeunet 620, 59 Crown Royal, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage.
Posts: 5,681
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Rather than mess with getting the chainline right for a track crank. It may be cheaper and easier to buy a good used road crank with two removable chainrings and just remove the outer chainring. If you shop around a bit you should be able to get a crank suitable for this for less than half of what track crank and bottom bracket would cost.
zukahn1 is offline   Reply With Quote
Old 10-04-11, 06:28 PM   #14
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Quote:
Originally Posted by zukahn1 View Post
Rather than mess with getting the chainline right for a track crank. It may be cheaper and easier to buy a good used road crank with two removable chainrings and just remove the outer chainring. If you shop around a bit you should be able to get a crank suitable for this for less than half of what track crank and bottom bracket would cost.
This is good advice. A road crank will normally have a recommended bottom bracket associated with it and using just the inner chainring will pretty much assure it's in the right place.

You might try to find a "flat" old style chainring that lacks modern shifting enhancements since it will resist spilling the chain better than a newer ring.

The crank you referred to says nothing about what width chain it requires. If it's a true track crank and uses a 1/8" chain, it will not work for your planned setup.

Last edited by HillRider; 10-04-11 at 06:31 PM.
HillRider is offline   Reply With Quote
Old 10-04-11, 06:45 PM   #15
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,768
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 208 Post(s)
For 130 bcd road cranks , surly[qbp] has stainless steel single speed chainrings.
best if the centered middle of a triple crank , lining up with the central cassette cog.

I have one .. single speed SS CR, I got for my IG hub bike..

cyclocross, some setups, uses a single ring setup, so makes a market for
chainguard discs for 44t , and 42 t setups. on road cranks,

i got one for the 38t for my setup..

Last edited by fietsbob; 10-04-11 at 06:52 PM.
fietsbob is online now   Reply With Quote
Old 10-04-11, 06:50 PM   #16
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Quote:
Originally Posted by fietsbob View Post
For 130 bcd road cranks , surly[qbp] has stainless steel single speed chainrings.
I have one I got for my IG hub bike..
They also have them in 110 mm BCD
HillRider is offline   Reply With Quote
Old 10-04-11, 06:55 PM   #17
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,768
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 208 Post(s)
110 is pretty Un Track.. they also sell 4 bolt ones too.
fietsbob is online now   Reply With Quote
Old 10-04-11, 06:59 PM   #18
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Quote:
Originally Posted by fietsbob View Post
110 is pretty Un Track...
Right it is, but so is an 11x32 cassette and 130 mm dropout spacing. The 110 mm option was in case the OP finds an old SR, Sun Tour or Suguino 110 crankset which would work wonderfully in his application.
HillRider is offline   Reply With Quote
Old 10-04-11, 07:27 PM   #19
Paul Barnard
For The Fun of It
Thread Starter
 
Join Date: May 2007
Location: Louisissippi Coast
Bikes: Garage full of bikes
Posts: 2,179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
What does BCD stand for? Bolt circle diameter?
Paul Barnard is offline   Reply With Quote
Old 10-04-11, 07:29 PM   #20
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Bikes:
Posts: 5,922
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Quote:
Originally Posted by Paul Barnard View Post
What does BCD stand for? Bolt circle diameter?
Correctamundo.
Dan Burkhart is offline   Reply With Quote
Old 10-04-11, 08:04 PM   #21
zukahn1
Senior Member
 
zukahn1's Avatar
 
Join Date: Oct 2011
Location: Fairplay Co
Bikes: Current 79 Nishiki Royal, Jeunet 620, 59 Crown Royal, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage.
Posts: 5,681
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
I would recomend an older Sugino 110 for this while a little more expensive used they have much more forgiving chainrings than the SR's.
zukahn1 is offline   Reply With Quote
Old 10-04-11, 08:22 PM   #22
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Bikes: Several, mostly not name brands.
Posts: 16,360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 56 Post(s)
Quote:
Originally Posted by zukahn1 View Post
Rather than mess with getting the chainline right for a track crank. It may be cheaper and easier to buy a good used road crank with two removable chainrings and just remove the outer chainring. If you shop around a bit you should be able to get a crank suitable for this for less than half of what track crank and bottom bracket would cost.
The problem with running modern road cranks with a single chainring is that modern road chainrings often have ramps, pins, and truncated teeth to make it easier for the chain to shift on and off the ring. In the absence of a front derailleur this can lead to inopportune chain dropping.

If the OP opts for this route, I'd recommend avoiding cranks made in the last 10 to 15 years to avoid these modern enhancements.
JohnDThompson is offline   Reply With Quote
Old 10-05-11, 08:11 AM   #23
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Quote:
Originally Posted by JohnDThompson View Post
The problem with running modern road cranks with a single chainring is that modern road chainrings often have ramps, pins, and truncated teeth to make it easier for the chain to shift on and off the ring. In the absence of a front derailleur this can lead to inopportune chain dropping.

If the OP opts for this route, I'd recommend avoiding cranks made in the last 10 to 15 years to avoid these modern enhancements.
That's why fietsbob and I both recommended Surly chainrings as they are completely flat with no shifting "improvements".
HillRider is offline   Reply With Quote
Old 10-06-11, 05:24 AM   #24
Paul Barnard
For The Fun of It
Thread Starter
 
Join Date: May 2007
Location: Louisissippi Coast
Bikes: Garage full of bikes
Posts: 2,179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Quote:
Originally Posted by HillRider View Post
That's why fietsbob and I both recommended Surly chainrings as they are completely flat with no shifting "improvements".
What BCD are the Surly rings? 4 or 5 bolt?
Paul Barnard is offline   Reply With Quote
Old 10-06-11, 09:00 AM   #25
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Quote:
Originally Posted by Paul Barnard View Post
What BCD are the Surly rings? 4 or 5 bolt?
Here is Surly's web page listing all of their chainrings: http://surlybikes.com/parts/stainless_steel_chainrings
HillRider 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 08:04 AM.