PDA

View Full Version : Record 10 chainring bolts popped

KJMUNC
05-13-2017, 05:16 PM
3mi into my ride today I heard some creaking and figured I'd check it when I got home. Then on a steep climb I heard "ping" and thought I'd broken a spoke. Turns out somehow 3 bolts were toast. Not sure if they all went at once or not but it stranded me as the inner ring is rubbing the chainstay.

Anybody have a new set of bolts they want to sell?
cadence90
05-13-2017, 05:42 PM
I wonder what would cause that?

If this profile (single "step", and not double "step" as required on U-T cranksets/rings) and color works, I have these NIB blue Tiso Campagnolo chainring bolts:

https://forums.thepaceline.net/attachment.php?attachmentid=1697934568&stc=1&d=1486924764
.
.
oldpotatoe
05-13-2017, 05:54 PM
3mi into my ride today I heard some creaking and figured I'd check it when I got home. Then on a steep climb I heard "ping" and thought I'd broken a spoke. Turns out somehow 3 bolts were toast. Not sure if they all went at once or not but it stranded me as the inner ring is rubbing the chainstay.

Anybody have a new set of bolts they want to sell?

Stripped a few when re-installing these chainrings but haven't seen any fail JRA. I suspect they were already stripped when installed last but...find some Athena ones, steel. Aluminum CR bolts not a good idea, imho.
ultraman6970
05-13-2017, 06:17 PM
No special bolts for that record crankset but maybe the one in the back.
oldpotatoe
05-13-2017, 06:32 PM
No special bolts for that record crankset but maybe the one in the back.

Not true. Holes in carbon spider small so 'conventional' bolts/nuts too big.
Vientomas
05-13-2017, 06:49 PM
The remaining visible bolt looks kinda funky...is that the stock bolt?
El Chaba
05-13-2017, 06:56 PM
Something is not right here.....Those bolts are up to the task. I understand maybe popping one, but several makes it weird....
pbarry
05-13-2017, 07:11 PM
Over tightened, no grease, water incursion.. Stuff happens.
ultraman6970
05-13-2017, 10:19 PM
They are??? had a chorus that generation and that thing used normal ones... good to know...

Not true. Holes in carbon spider small so 'conventional' bolts/nuts too big.
oldpotatoe
05-14-2017, 01:56 PM
They are??? had a chorus that generation and that thing used normal ones... good to know...

Can ya pound 'conventional' CR nuts thru the crank spider holes? Why yes you can but not ideal.
Tickdoc
05-14-2017, 02:10 PM
yo wattage is insane, brau.
KJMUNC
05-14-2017, 03:03 PM
yo wattage is insane, brau.

Prob my wattage while installing them :crap:
KJMUNC
05-14-2017, 03:05 PM
Can ya pound 'conventional' CR nuts thru the crank spider holes? Why yes you can but not ideal.

Something like these work?

https://xtremebikeandsport.com/products/campagnolo-chainring-bolt-kit-for-veloce?gdffi=ab394555fab44f5c8e8f1018c60713e2&gdfms=2644628A340545089594708CF7122CDE&_vsrefdom=adwords&gclid=CK7-l4qX8NMCFQ8xaQodpbIJPg
Marz
05-14-2017, 09:33 PM
Something is not right here.....Those bolts are up to the task. I understand maybe popping one, but several makes it weird....

Happened to me. I didn't tighten them properly when I swapped chain rings.
oldpotatoe
05-15-2017, 02:53 AM
Something like these work?

https://xtremebikeandsport.com/products/campagnolo-chainring-bolt-kit-for-veloce?gdffi=ab394555fab44f5c8e8f1018c60713e2&gdfms=2644628A340545089594708CF7122CDE&_vsrefdom=adwords&gclid=CK7-l4qX8NMCFQ8xaQodpbIJPg

Well, as I said, you can hammer the 'nuts' into the spider arm holes but you really need these.

http://www.jensonusa.com/!7dBT!89smMaZxTb2BQSx!A!/Campagnolo-Chainring-Bolt-Kit?utm_source=FRGL&utm_medium=organic&pt_source=googleads&pt_medium=cpc&pt_campaign=shopping_us&pt_keyword=&gclid=CNyP1c-18dMCFUK4wAodrYIJnA