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cottered cranks

Old 04-02-10, 01:01 PM
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chico1st
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cottered cranks

I have a number of cottered cranks I dont have on bikes, are they worth keeping? or should I donate them to a co-op?

I have a cottered crank on 1 of my 4 bikes do I need to keep a replacement around?

I dont really understand how they work :S (cotters make sense) they have a crazy built in axle/spindle
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Old 04-02-10, 01:30 PM
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All depends on condition and model. Check ebay for sales, and see if you want to mess around with it.
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Old 04-02-10, 04:45 PM
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If you have a Stronglight, I might be interested.
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Old 04-02-10, 05:01 PM
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I have a cottered Araya made bicycle with a bent chainwheel in my possession. I'm very temped to consider that as my next project and if so would be looking for a replacement crank. no promises either way, but could you toss up a few pictures of the cranks if not inconvenient?

also I think the plugging of the following website is in order for anyone who finds themselves working on cottered cranks:
https://bikesmithdesign.com/CotterPress/

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Old 04-02-10, 06:55 PM
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Originally Posted by Wizel603
I have a cottered Araya made bicycle with a bent chainwheel in my possession. I'm very temped to consider that as my next project and if so would be looking for a replacement crank. no promises either way, but could you toss up a few pictures of the cranks if not inconvenient?

also I think the plugging of the following website is in order for anyone who finds themselves working on cottered cranks:
https://bikesmithdesign.com/CotterPress/

that cotter pin press is the best thing i have ever used
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Old 04-03-10, 07:15 AM
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That's a nice press ... kinda pricey.

My one experience with removing cotter pins from cranks ... it was a struggle. Could have used a press.

I found one at Harbor Freight for removing ball joints that would work ... but by then my bike-friendly buddy and his machinist neighbor had hammered it out (a torch was involved, too), so I never got a chance to try it out.

Those things are tough!
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