Re: *** X-LITE STEM CAP NEEDED ***
That is the stem I have, so with a bit of effort, you can get it to fit. Thinking things through logically, the cap fits in the stem fine, it just doesn't fit inside the steerer tube of the fork. I ended up filing mine down so it would, but perhaps it doesn't need to fit inside the steerer due to the clamp arrangement of the stem, and maybe designed to sit on top, as mt spare also has a rubber bumper. I may have to ask around.