Replacement for Campy chainring?
02-19-12, 11:04 AM
#1
Carpe Velo
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Replacement for Campy chainring?
The 40t Veloce chainring on my Campy triple is bent and causing me shifting problems. I've been looking around online and not finding a lot of 40T rings for it. Plenty of 39's and some 41's however. I ran across this on Ebay which appears to be a compatible ring from TA. The price is right, even after shipping. Anyone have any experience using Campy compatible TA stuff?
02-19-12, 11:35 AM
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Have you tried to bend the one you have back into shape?
02-19-12, 11:38 AM
#3
Carpe Velo
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02-19-12, 12:32 PM
#4
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Campag 135 triple 40t has shift assist pins on the inside face.
a double inside ring will lack that.
anyhow TA stuff is top tier .. 7075/Ergal.
a double inside ring will lack that.
anyhow TA stuff is top tier .. 7075/Ergal.
02-19-12, 12:57 PM
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I did a search and found some info. Those are what you are talking about. From Branfordbike.com:
All current Campagnolo middle and outer chainrings use steel chain pick up pins and have precisely machined teeth. Chain pick up pins are only used on middle, for triple chainring cranks, and outer rings for triple and double chain ring cranks. They help to lift your chain when you are shifting from a smaller ring into a bigger ring. Note how the teeth above the pick up pins are profiled to further assist in up shifting.
Thanks to the info. I'll see if I can straighten it a little more. I'll have the crank off again soon to replace the BB.
Last edited by Yo Spiff; 02-19-12 at 01:02 PM.
02-19-12, 01:23 PM
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Is the bolt circle correct?
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02-19-12, 01:32 PM
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all the modern campy road triples i have seen were 135bcd. there used to be an ebay seller that had a bucketload of 42t rings from campy triples. i know it would change your gearing but if they are still around they were a steal for $15 shipped. i run one on my single speed. the pins dont do me any good but they would help your situation.
02-19-12, 01:49 PM
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The 40t Veloce chainring on my Campy triple is bent and causing me shifting problems. I've been looking around online and not finding a lot of 40T rings for it. Plenty of 39's and some 41's however. I ran across this on Ebay which appears to be a compatible ring from TA. The price is right, even after shipping. Anyone have any experience using Campy compatible TA stuff?
02-19-12, 02:22 PM
#10
Carpe Velo
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Thanks for all the input. I think I'll give it a try, since its only $35 with the shipping. I spend most of my time on the middle ring anyway.
02-20-12, 03:41 AM
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I used a TA chainring on my Chorus crankset, it was very good. It lasted maybe longer than the original Campagnolo one.
02-20-12, 03:44 AM
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Yes, they work fine, but why not go with a 39? a touch lower gear can't hurt especially as you get older!
Last edited by pat5319; 02-20-12 at 03:48 AM.
02-21-12, 09:59 AM
#13
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I didn't see the TA in a 39. The 41 was what was being sold and I don't think I will perceive a 1 tooth difference. My bike is geared pretty wide anyway. I've always got that small ring if I have to wimp out on a climb!
02-21-12, 11:31 AM
#14
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AFAIK Campag 'race' triples come with a 40 and a 42t middle.. I have one of each.
52/42[26] & 50/40[24], I swapped out the 3rd ring in both cases.. from the 30t
52/42[26] & 50/40[24], I swapped out the 3rd ring in both cases.. from the 30t
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