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 03-22-11, 12:31 PM   #1
macnab
Senior Member
Thread Starter
 
macnab's Avatar
 
Join Date: Jul 2010
Location: Fogtown
Bikes: Litton, Gunnar, Iro
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Mechanic help - chain length / caliper rub issue (pics)

I put together my daughter's birthday bike last night. Having trouble getting the 28 rando to fit, due to the chain length. I removed two links, and now I am caught between a too-tight chain on one hand and tire-to-brake caliper rub on the other . If the chain is a pretty basic KMC Z-410:

- Is it safe toput one of the links back in, i.e. pins not damaged by removal?
Wouldnt that push the axle off the back?

- Should I move to a half-link chain? (see pics of where axle is in the dropouts right now) Moving half link distance might be much better than a whole link. Reason I took two links out in the first place is that it looked like the wheel would be pretty far back in the dropouts if I didn't. Do you think I can out a whole link back in?

Alternate ideas? File the brake arms? Get a different (low-cost) brake with better clearance?



That's where the axle sits right now.



Tire spins right now, but there's no room for a pebble.


Thanks for any help!
macnab is offline   Reply With Quote
Old 03-22-11, 12:40 PM   #2
docboyd
Senior Member
 
docboyd's Avatar
 
Join Date: Jan 2011
Location: Riverside/Temecula, CA
Bikes:
Posts: 493
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm pretty sure you can put a link back in...as long as its not busted or anything
docboyd is offline   Reply With Quote
Old 03-22-11, 12:41 PM   #3
Squirrelli
GONE~
 
Join Date: Apr 2010
Bikes:
Posts: 6,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The cheapest solution would be a half link, which is about $3 or so at your LBS.
Squirrelli is offline   Reply With Quote
Old 03-22-11, 12:53 PM   #4
Cynikal
Team Beer
 
Cynikal's Avatar
 
Join Date: Apr 2004
Location: Sacramento CA
Bikes: Too Many
Posts: 5,921
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
If you put a link back in the axle would sit too far back in the track end. You ave 3 options: smaller tire, different gearing or a half link.
Cynikal is offline   Reply With Quote
Old 03-22-11, 01:11 PM   #5
striknein
Goes to 11.
 
striknein's Avatar
 
Join Date: Oct 2010
Location: Wichita, KS, USA
Bikes: 2015 Soma Double Cross
Posts: 2,585
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Half link++.
striknein is offline   Reply With Quote
Old 03-22-11, 01:17 PM   #6
macnab
Senior Member
Thread Starter
 
macnab's Avatar
 
Join Date: Jul 2010
Location: Fogtown
Bikes: Litton, Gunnar, Iro
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I didn't know I could buy a half link by itself. Thanks!
macnab is offline   Reply With Quote
Old 03-22-11, 03:44 PM   #7
lz4005
coasterbrakelockup
 
lz4005's Avatar
 
Join Date: Nov 2004
Location: parts unknown
Bikes: surly steamroller w/coaster brake, electra single speed cruiser, specialized rockhopper commuter, no-name single speed folder, 700c ultimate wheel, 24" unicycle, specialized bmx lsd, single seat single speed huffy tandem, pink upsidedown parade bike
Posts: 825
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Smaller tire or brake with better clearance.
lz4005 is offline   Reply With Quote
Old 03-22-11, 04:01 PM   #8
macnab
Senior Member
Thread Starter
 
macnab's Avatar
 
Join Date: Jul 2010
Location: Fogtown
Bikes: Litton, Gunnar, Iro
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Brake suggestion?
macnab is offline   Reply With Quote
Old 03-22-11, 04:13 PM   #9
FastJake
Constant tinkerer
 
FastJake's Avatar
 
Join Date: May 2010
Location: Madison, Wisconsin
Bikes:
Posts: 7,574
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Cheapest: adding a half link.

Middle: A single pivot sidepull will give better clearance than a dual pivot. With a single pivot the tire will hit the brake at almost the same time it hits the seat stay bridge.

Most expensive but best (IMO): a frame with more tire clearance or horizontal dropouts instead of track ends.
FastJake is offline   Reply With Quote
Old 03-22-11, 04:14 PM   #10
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Bikes: Several, mostly not name brands.
Posts: 16,448
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 90 Post(s)
Quote:
Originally Posted by macnab View Post
Alternate ideas? File the brake arms? Get a different (low-cost) brake with better clearance?



Tire spins right now, but there's no room for a pebble.


Thanks for any help!
Lower profile tire?

How wide is the present tire?
JohnDThompson is offline   Reply With Quote
Old 03-22-11, 04:24 PM   #11
macnab
Senior Member
Thread Starter
 
macnab's Avatar
 
Join Date: Jul 2010
Location: Fogtown
Bikes: Litton, Gunnar, Iro
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The tires are 28 Randos. Thinner tires are ruled out as an option, as the kid has skinny tire phobia. We ride dirt trails now and then in the park.

I also can't buy a different frame at this time. $$$

Thanks for all suggestions though, I appreciate the input, even when I can't use it for some reason or another. I bought the half link and will test it out when I get back in the garage at the end of this week.

Edit: Just ordered a single-pivot caliper brake. That plus the half link should resolve the issue for now.

Last edited by macnab; 03-22-11 at 04:50 PM.
macnab is offline   Reply With Quote
Old 03-22-11, 08:04 PM   #12
Build your own
%#&*#%>?%
 
Build your own's Avatar
 
Join Date: Feb 2008
Location: Mass
Bikes: Pake,Shogun,Nishiki,Motobecane
Posts: 845
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I see you ordered another brake, but for future reference,filing it a mm is not going to cause fail.I've done it to the brake and forkcrown to fit 28s on one of my bikes and never had a problem.Also,if it spins freely you're good to go.
Build your own is offline   Reply With Quote
Old 03-22-11, 08:15 PM   #13
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,540
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 79 Post(s)
macnab - what frame is that? I want to see a pic of the whole bike!
__________________
__________________________________
Scrodzilla is offline   Reply With Quote
Old 03-22-11, 08:23 PM   #14
Squirrelli
GONE~
 
Join Date: Apr 2010
Bikes:
Posts: 6,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Looks like Maxway dropouts, but not stamped.
Squirrelli is offline   Reply With Quote
Old 03-22-11, 09:03 PM   #15
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,540
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 79 Post(s)
Close but no cigar:



__________________
__________________________________
Scrodzilla is offline   Reply With Quote
Old 03-22-11, 09:07 PM   #16
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: 0 Post(s)
Looks like a Swobo Sanchez/I remember a thread about them recently.
yummygooey is offline   Reply With Quote
Old 03-22-11, 09:10 PM   #17
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,540
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 79 Post(s)
I think you're right!
__________________
__________________________________
Scrodzilla is offline   Reply With Quote
Old 03-23-11, 01:47 AM   #18
macnab
Senior Member
Thread Starter
 
macnab's Avatar
 
Join Date: Jul 2010
Location: Fogtown
Bikes: Litton, Gunnar, Iro
Posts: 184
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I am not done with it yet. Doing some work-work in Kansas City this week. I'll shoot real/final pics when I get back this weekend.

edit :yeah its the 46 sanchez
macnab is offline   Reply With Quote
Old 03-23-11, 01:51 AM   #19
Sixty Fiver
Bicycle Repair Man !!!
 
Sixty Fiver's Avatar
 
Join Date: Sep 2007
Location: YEG
Bikes: See my sig...
Posts: 27,262
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Lucky kid, great dad.

We want more pics.
Sixty Fiver is offline   Reply With Quote
Old 03-23-11, 01:53 AM   #20
docboyd
Senior Member
 
docboyd's Avatar
 
Join Date: Jan 2011
Location: Riverside/Temecula, CA
Bikes:
Posts: 493
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
what you gunna do with that other brake?
docboyd is offline   Reply With Quote
Old 03-23-11, 02:16 AM   #21
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 macnab View Post
Kansas
Dorothy?!
Squirrelli 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 04:24 AM.