What about this drilled tooth chainring?
01-21-21, 02:05 PM
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What about this drilled tooth chainring?
Looking for a bit of info on this chainring. It came to me on a 1976 Record Strada crank and , while I'm pretty sure it's home drilled, I'm not sure about those teeth. Hopefully some of you guys who know more than me can clue me in. Is this a Campy chainring? That haphazard 52 has me doubtful. Any idea what it is? And would you ride it? Thanks!
01-21-21, 02:22 PM
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not Campag
their dentition marking differs
perchance another reader shall recognise it straightaway...
could we have an image of the back side to assist readers?
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not Campag
their dentition marking differs
perchance another reader shall recognise it straightaway...
could we have an image of the back side to assist readers?
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01-21-21, 02:26 PM
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I would break it.
Coffee Run bike fitment.
Coffee Run bike fitment.
01-21-21, 02:26 PM
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My Google fu is strong today. Gian Robert, they made lower quality copies of Campagnolo parts.
https://www.ebay.com/itm/GIAN-ROBERT...cAAOSwfX9b6q-~
https://www.ebay.com/itm/GIAN-ROBERT...cAAOSwfX9b6q-~
01-21-21, 02:33 PM
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My Google fu is strong today. Gian Robert, they made lower quality copies of Campagnolo parts.
https://www.ebay.com/itm/GIAN-ROBERT...cAAOSwfX9b6q-~
https://www.ebay.com/itm/GIAN-ROBERT...cAAOSwfX9b6q-~
fine work!
and alacritous as well
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01-21-21, 03:04 PM
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Wow, that was fast, thanks guys! So this is a Gian Robert chainring that's been further drilled out and should probably be carefully ridden. Good to know. Check this out:
01-21-21, 03:35 PM
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I don't think there is any reason to be concerned. There isn't any structural deficiency that I can see. that measurement is nearly meaningless. The holes don't impact anything either.
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01-21-21, 04:19 PM
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Ride it.
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A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera
A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera
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01-22-21, 04:44 AM
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The sprocket is factory drilled (I think) and I have seen them before. Sadly, I cannot remember what bike(s) I have seen them on.
Other that some worn teeth, the sprocket is just fine and I would not hesitate to use it, from a mechanical stand point. Cosmetically - nope. I am not a fan of Drillium.
Other that some worn teeth, the sprocket is just fine and I would not hesitate to use it, from a mechanical stand point. Cosmetically - nope. I am not a fan of Drillium.
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