I had some trouble with the the length of the R6 steering stem. It didn't look long enough to fit all the parts an put the final nut on top. Legend_10 helped me out, and after some fiddling with all the parts I got it to work.
I installed tapered bearings on the original XS forks, it looked like the races were a perfect match for my new bearings. Later i found out they are higher, eating up the available steering stem length and had to go. To bad there is no fr*&ing room underneath the races to force them out. Thanks to the welder, i got them out and replaced.
The bearings i used are from All Balls racing. p/n 99-3515-5 for anyone that's interested. You need two of them. they are 30x48x12mm.
Here you see the lower bearing race height of the new bearing
With the correct bearings installed in the neck I could measure the thickness of the spacer I needed underneath the lower bearing (5,75mm). Machined the correct spacer and assembled the bearing onto the stem. Made an additional spacer to hammer the bearing on the race to its final position.
just a hair of play. Anything more would take away length at the top of the stem.
In the quest for milimeters, I even turned down both the ring nuts 0,5mm.
The over-length on top should leave me enough room for the new triple clamp. I hope to get started on that this week...hopefully