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 08-17-12, 12:17 PM   #1
puchfinnland
MIKE is my name!
Thread Starter
 
puchfinnland's Avatar
 
Join Date: Mar 2012
Location: finland,baltimore
Bikes: hans lutz, , puch mistral ultima,2x Austro Daimler Smoked chrome Ultima,Austro Daimler Mixte,Austro Daimler 531 mixte, flying arrow,F Moser,
Posts: 2,881
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
new to MTB, and casette hubs-new chain-old cogs

I normally live over at the C&V page.Im into roadbikes and well this is my first real 9spd casette setup

my 2 kids go to a MTB youth ride 2x a week
I built them some sweet bikes,

the coach or leader said if I want to come along I am more then welcome.

drat- I got to put another MTB together.....well lets just say I love roadbikes.
I know no history of this bike-
I picked up this trek 4500 with rock shox at the dump-the front wheel was toast but easily swapped from the other trek mtb that came from the same place.
stripped down the 9 speed casette and cleaned every cog-the smallest was cracked, the 13t had a chipped tooth,replaced the 11t with a spar i stole from another bike
stripped down the crankset and cleaned it also.
well I put on a new chain,grips and brake pads.
total money in the bike-maybe 20-25

first ride,- chain hop in several but not all cogs
I know enough that the problem must be in the casette.
back home now- casette is off and later I was planning to file all the burrs off of the worn teeth

the question
am I wasting my time or should I just buy a new shimano 9spd-casette for 25?

(dambed-Ill have 50 in it then!)

mike
puchfinnland is offline   Reply With Quote
Old 08-17-12, 12:27 PM   #2
dsbrantjr
Senior Member
 
dsbrantjr's Avatar
 
Join Date: Sep 2010
Location: Roswell, GA
Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta
Posts: 4,743
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 126 Post(s)
Skipping of a new chain on a used cassette with a correctly-adjusted, non-bent derailleur often is an indication of a cassette which has worn into an elongated chain. The "worn teeth" you see may be shaped that way to assist in shifting. It might be wise to replace the cassette before you put unnecessary wear on your new chain.
dsbrantjr is offline   Reply With Quote
Old 08-17-12, 01:15 PM   #3
puchfinnland
MIKE is my name!
Thread Starter
 
puchfinnland's Avatar
 
Join Date: Mar 2012
Location: finland,baltimore
Bikes: hans lutz, , puch mistral ultima,2x Austro Daimler Smoked chrome Ultima,Austro Daimler Mixte,Austro Daimler 531 mixte, flying arrow,F Moser,
Posts: 2,881
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
i recognize the pattern of the special cog design, some of them are hammered

well lets just show the pic..

puchfinnland is offline   Reply With Quote
Old 08-17-12, 01:16 PM   #4
puchfinnland
MIKE is my name!
Thread Starter
 
puchfinnland's Avatar
 
Join Date: Mar 2012
Location: finland,baltimore
Bikes: hans lutz, , puch mistral ultima,2x Austro Daimler Smoked chrome Ultima,Austro Daimler Mixte,Austro Daimler 531 mixte, flying arrow,F Moser,
Posts: 2,881
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
4th and 5th are just shot, you can see the edge of the teeth.

puchfinnland is offline   Reply With Quote
Old 08-18-12, 12:09 PM   #5
puchfinnland
MIKE is my name!
Thread Starter
 
puchfinnland's Avatar
 
Join Date: Mar 2012
Location: finland,baltimore
Bikes: hans lutz, , puch mistral ultima,2x Austro Daimler Smoked chrome Ultima,Austro Daimler Mixte,Austro Daimler 531 mixte, flying arrow,F Moser,
Posts: 2,881
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
any comment on these teeth?
puchfinnland is offline   Reply With Quote
Old 08-18-12, 03:03 PM   #6
reptilezs
Senior Member
 
Join Date: Sep 2004
Location: boston, ma
Bikes:
Posts: 2,852
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
new cassette
reptilezs is offline   Reply With Quote
Old 08-18-12, 04:10 PM   #7
wroomwroomoops
Sir Fallalot
 
wroomwroomoops's Avatar
 
Join Date: Jul 2006
Location: Helsinki, Finland
Bikes:
Posts: 5,276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
It doesn't look terrible, but I am quite bad at judging sprockets and chainrings from looking at the teeth on a picture.
wroomwroomoops is offline   Reply With Quote
Old 08-18-12, 05:12 PM   #8
davidad
Senior Member
 
Join Date: Feb 2009
Bikes:
Posts: 4,951
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
If a new chain skips ubder then the cogs it skips on are worn. Filing off the upset won't cure the problem. The shape of the cog and therefore the pitch have changed. Read the bottom. http://draco.nac.uci.edu/rbfaq/FAQ/8d.2.html
davidad is offline   Reply With Quote
Old 08-19-12, 01:49 AM   #9
puchfinnland
MIKE is my name!
Thread Starter
 
puchfinnland's Avatar
 
Join Date: Mar 2012
Location: finland,baltimore
Bikes: hans lutz, , puch mistral ultima,2x Austro Daimler Smoked chrome Ultima,Austro Daimler Mixte,Austro Daimler 531 mixte, flying arrow,F Moser,
Posts: 2,881
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I filed the teeth, did not help- need new cassette.

end of subject
puchfinnland 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 02:21 AM.