51.9mm or 52mm inte...
 

[Closed] 51.9mm or 52mm integrated headset bearing?

 Joe
Posts: 1721
Free Member
Topic starter
 

My headset bearing from the lower cup is marked 51.9mm 45/45. I want to replace it with a Chris King or maybe Cane Creek unit, but both are marked 52mm 45/45.

Is it the same size?


 
Posted : 03/06/2019 10:42 am
Posts: 5387
Free Member
 

I had the same issue.... Wasn't sure of the size I needed even after measuring with calipers and Bought what I thought was a standard a 52mm canecreak and it just wouldn't fit. Ended up getting some obscure headset bearing for a Trek that was 51.8 or something...

Theres lots of 51.9's about though...


 
Posted : 03/06/2019 11:19 am