Need help measuring Cannondale bearing

[aindriu]

Hi,

I am looking for a (headset) top bearing for my Cannondale Supersix 2012 bicycle, see attached picture. The bearing is part of Cannondale SuperSix EVO Complete Headset - KP203 but I just need the upper bearing, measurement says 1 1/8" but there are many variants with different inner angle/outer angle. Can someone identify the measurements? I was going to order it off AliExpress https://www.aliexpress.com/item/32991982476.html

 

[Smokin Joe]

Best way is to just take the bearing to your LBS where they should have a like for like replacement. It won't cost much. Unusual for a top bearing to need replacing though, what's wrong with it?

 

[aindriu]

It's starting to wear and doesn't feel smooth, I will ask Cannondale

 

[CXRAndy]

https://www.google.com/search?clien....642.2-3......0....1.........0i71.npXRwzdc6BI

Supplies a Plenty

 

[aindriu]

I did a Google search but just seen
Currently unavailable
We don't know when or if this item will be back in stock.

Still waiting for Cannondale to respond

 

[si_c]

Should be some markings on the bearing to tell you what it is.

 

[Oldfentiger]

I agree. Should be a part number on the bearing.
Google the number and see results.

 

[twentysix by twentyfive]

This ^^^^

 

[Foghat]

It's all very well advising to read the markings on the bearing, but this doesn't get you very far when the bearing has none, which is not uncommon.

When there are no markings, if you want to determine the dimensions for a replacement yourself, then the following come in quite handy (FSA head tube/bearing gauges, Park digital caliper):

 

[aindriu]

Thanks for all the help, There were no visible markings on the bearing with all the corrosion.
Cannondale sent me the dimensions,
1 1/8" Headset Bearing 41.8MM/7MM/45
Product code: ACB418H7B-DBA

 

[Slick]

Thanks for all the help, There were no visible markings on the bearing with all the corrosion.
Cannondale sent me the dimensions,
1 1/8" Headset Bearing 41.8MM/7MM/45
Product code: ACB418H7B-DBA

I had the same issue and in the end had to make some adjustments to make the one the Lbs thought would fit but didn't. The issue wasn't the diameter of the bearings it was the chamfered shoulder that was a nightmare.