replace chainring?
11-10-13 | 03:11 PM
#1
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From: CT
replace chainring?
Around here i'm in the 50t ring most of the time and I think it is getting worn out but i'll ask here for an opinion 
I can take more pics later if needed.. my car was blocked in so i couldn't take it out.
sorry about the grungy chain.. just rode today and it's due for a scrub.
I can take more pics later if needed.. my car was blocked in so i couldn't take it out. sorry about the grungy chain.. just rode today and it's due for a scrub.
11-10-13 | 03:28 PM
#4
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From: CID
Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)
Looks like it has plenty of life left in it. As long as you don't let your chains elongate past 1/8" or so, the chainring teeth should work until they're nearly gone. 
11-10-13 | 06:30 PM
#5
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From: Fairplay Co
Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed
That chainring looks pretty nackerd gone. It should properly be replaced along with the chain and most likley the cassette/freewheel. Note running a worn chain and cassette/freewheel will wear aout chainrings quick cut there life by 2/3rds. I have chainrings original on 30 year old bikes riden heavily that don't look that bad.
11-10-13 | 06:48 PM
#6
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From: CT
still not understanding why I should replace a cassette which is not worn out. They were not put on at the same time. chainring is twice as old. I have replaced the chain every 2500mi or so.. usually each spring.
11-10-13 | 07:21 PM
#8
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From: CT
No symptoms.. it was just not looking as un-spikey as compared to a new one. Perhaps it's not as bad as I think. The section i photo'd might be the ramped part for shifting.
I measured my chain and it is 12" center to center so it is not worn out either. cassette cogs are still nicely squared off on top
tomorrow it will get a good scrubbing since i feel bad my chain looks so grunged up.
I measured my chain and it is 12" center to center so it is not worn out either. cassette cogs are still nicely squared off on top
tomorrow it will get a good scrubbing since i feel bad my chain looks so grunged up.
Last edited by Jakedatc; 11-10-13 at 07:25 PM.
11-10-13 | 07:31 PM
#9
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From: Fairplay Co
Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed
Well if eveything works right that makes my earlier post pretty much moot. There was an assumbtion that this drivetrain had failed or wasn't functioning properly. I if everything works good and the chain is within basic torerance ride it I have riden stuff that looked worse.
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