ACB3547H7 1-1/4" Headset Bearing 35x47x7 36/45

I bought this bearing to replace the lower headset bearing on a 2024 Colnago V3 bike. The original bearing failed prematurely and I bought this to replace it. The original bearing was unmarked so I had to measure the OD, ID and chamfer angles. I found this bearing and am very happy with the quality and price.

Excellent service and good value

I bought this to replace the headset on my Cannondale Synapse Disc road bike. The originals always had slight play in the housing, and would be disconcertingly noisy and rattly on rough roads. These were chosen to be 0.1mm bigger o/d to fit the housing better. They do fit better, but the bevel is different, so there is a bigger gap between the fork crown and the head tube. I changed the crown race for a slimmer item which solved this, but it was a bit of a faff. However, the headset is now rattle-free for the first time since owning the bike !! Service from Wych was, as always, superb