Old Valkyries use the same type of valve stems as the F6B. It's a metal stem with a 90 degree rubber elbow, and a plastic clip to keep the elbow from flexing. Full Wings use a different, all metal valve stem with a TPMS sender on the inside of the rim, similar to automotive TPMS.

I still own 2 Valkyries and this subject often gets raised on the VRCC board. Keep these two things in mind if you still use the OEM rubber/metal valve stems:

1. If you lose the plastic clip, centrifugal force will cause the rubber elbow to flex and a leak will develop quickly.

2. Like most tire valves, the rubber deteriorates over time and will eventually leak. This happened to me 300 miles from home. Replacing a valve stem on the road is MUCH more difficult than plugging a puncture. After that I switched to metal valve stems.