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 03-27-11, 06:58 AM   #1
SortKaffe
Newbie
Thread Starter
 
SortKaffe's Avatar
 
Join Date: Mar 2011
Location: Copenhagen, Denmark
Bikes:
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Brake misalignment issues

Hi guys

I'm new to this forum, and I just got my first bike a Fuji Classic Track 2011.

I'm having an issue with the front break being too loose nomatter how hard i tighten the center bolt that holds the brake to the front of the frame. The thing is the whole thing seems to either move to the left or the right after a while of use, so I always end up with one of the brakepads permanently touching the rims which isn't good

It seems like the center bolt is the only thing that secures the whole brake to the frame and i've tightened the front and back bolt as hard as possible but i'm still able to move the brake with my hand pretty easily. It just seems like it's way to loose for comfort so I was wondering if you guys have any suggestions as to what I can do about this problem? The brake is of the brand Radius.

Thanks

Last edited by SortKaffe; 03-27-11 at 07:13 AM.
SortKaffe is offline   Reply With Quote
Old 03-27-11, 07:53 AM   #2
rhenning
Senior Member
 
Join Date: Apr 2006
Bikes:
Posts: 2,504
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
Take it back to the shop you bought it from. It is a new bike and there are I suspect some washer/spacers missing from the brake bolt/stud or the nut is defective. You bought new so use the warranty while you have it. Roger
rhenning is offline   Reply With Quote
Old 03-27-11, 07:58 AM   #3
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: 28,917
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
Quote:
Originally Posted by rhenning View Post
Take it back to the shop you bought it from. It is a new bike and there are I suspect some washer/spacers missing from the brake bolt/stud or the nut is defective. You bought new so use the warranty while you have it. Roger
+1 Either a spacer was left out or a too long retaining nut was used. In either case it's an easy and quick fix by the shop.
HillRider is offline   Reply With Quote
Old 03-27-11, 08:01 AM   #4
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Bikes: Rans Rockst (Retro rocket) Rans Enduro Sport (Retro racket) Catrike 559, Merin Bear Valley (beater bike).
Posts: 26,738
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Is this a really cheap brake caliper?

I looked up Radius bike brakes on google and found what looked to me like a rebadged version of the old weinamm/ dia compe design that has been around forever. If that's the case, you have a couple of choices.

The first is to play around with bending the return spring. Eventually you'll get better at doing it because you'll be fussing with it a lot. If it was my bike, however, I'd bite the bullet and buy a low end Shimano or Tektro dual pivot caliper.
Retro Grouch is offline   Reply With Quote
Old 03-27-11, 09:36 AM   #5
SortKaffe
Newbie
Thread Starter
 
SortKaffe's Avatar
 
Join Date: Mar 2011
Location: Copenhagen, Denmark
Bikes:
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi guys

Well I don't have the option of returning it since the bike was bought online shipped from the U.K to Copenhagen, Denmark where I live but I'm definitely gonna send them an email to see if I can get some kinda replacement brake but since this being Europe I highly doubt they'll give a customer that kinda service.

I've already taken it apart and reassembled the brake but it doesn't seem to make any difference, anyways I'm not sure what qualifies as a cheap brake caliper? But yeah I do suspect it to be a ****ty brake like you said. I'm pondering on whether or not I put the thing back together right? now that I think of it so I can one of you guys just take a look and see if I missed something? there's a long metal rod that goes through the whole brake which is inserted into the frame and tightened with a bolt in the back and in the front there's two small "discs" a silver and a metallic one which is placed between the frame and the brake and then there's the two five sided nuts in the front which you can see too. I used all the parts and I'm 99% sure It's all right since the brake functions correctly other than the issue of being slightly loose even after the center bolts are secured tightly.

Here's some pics I've taken, If It's all good I might just take the brake off and buy a lowend quality brake like you guys suggested

http://i55.tinypic.com/10xfzpv.jpg
http://i54.tinypic.com/nwzplg.jpg
http://i51.tinypic.com/244dxyc.jpg
SortKaffe is offline   Reply With Quote
Old 03-27-11, 10:38 AM   #6
BCRider
Senior Member
 
BCRider's Avatar
 
Join Date: Mar 2008
Location: The 'Wack, BC, Canada
Bikes: Norco (2), Miyata, Canondale, Soma, Redline
Posts: 5,456
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm going to guess that the recessed nut is a shade too long to fit properly. It's likely bottoming on the threads and getting tight before it tightens the brake itself hard enough to hold it in place properly. If you can twist the caliper easily side to side by hand that would be the case.

Also you really should have a housing ferrule on the housing end where it goes into the adjuster on the brake.

And yes, going to a set of dual pivot style Tektro calipers would be a big upgrade in your brakes. But you should be able to fix the present ones with a little more study and some simple work.
BCRider is offline   Reply With Quote
Old 03-27-11, 11:34 AM   #7
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,956
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 362 Post(s)
As BCRider says, it's probably that the mounting hardware is too long for the fork, and bottoming on the last thread rather than tightening front and back against the fork.

Simple experiment to confirm. Trap a dollar bill, or 1 pound note between the brake and the fork and tighten the bolt in the back. If you can pull out the note, the brake isn't tight, and the bolt or nut is too long. If you have a recessed allen key nut the remedy is easy, file or saw off a few millimeters so it'll move farther sown on the bolt and you'll be good to go in 3 minutes.

If the bolt goes all the way through with a nut in the back, add a spacer between the brake and fork, or a few washers in the back to take up the distance, and tighten.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline   Reply With Quote
Old 03-27-11, 11:58 AM   #8
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: 28,917
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
Quote:
Originally Posted by FBinNY View Post
Simple experiment to confirm. Trap a dollar bill, or 1 pound note.....
Been a while since you've been in the UK hasn't it? AFAIK, the £1 note disappeared long ago and was replaced with a coin. I think the smallest paper note is £5. The 1 and 2 Euro pieces are coins too with the smallest paper bill being 5 euro.

The US is about the only remaining country where the smallest denomination is still a paper note and there have been three unsuccessful attempts to replace it with a coin.
HillRider is offline   Reply With Quote
Old 03-27-11, 12:01 PM   #9
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,956
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 362 Post(s)
Quote:
Originally Posted by HillRider View Post
Been a while since you've been in the UK hasn't it? AFAIK, the £1 note disappeared long ago and was replaced with a coin. I think the smallest paper note is £5. The 1 and 2 Euro pieces are coins too with the smallest paper bill being 5 euro.

The US is about the only remaining country where the smallest denomination is still a paper note and there have been three unsuccessful attempts to replace it with a coin.
Gee, I guess using currency as feeler gauges is much pricier in Europe than here in the states. But it shouldn't be an issue since you can still spend it afterward.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY 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 03:29 PM.