I managed to damage the headset on my Merida Speeder 300. In particular, I warped the bottom bearing, and I need a replacement. Normally, this would be a simple matter of looking up the specifications of the model in question, except the FSA website doesn't list a product numbered 61BP or 57/61BP.
I took a caliper and measured some of the parts. The steerer measured 28.4mm at the top, and flared to 39.8mm at the crown. I probably messed up the measurements, and that steerer is a 1-1/8"-1.5". The cups are semi-integrated, the top one measured 40.1 mm on the inside, and 32.4mm inside the lip. The bottom one was 47 and 41 mm on the same. Of course, I couldn't get at the tube because the cups were in the way, and my handling of the caliper is suspect..
So, what is this product and what are the critical measurements of it, with an eye to getting a replacement.