I have angle valve stems on every bike. Even my concours with pressure sensors has angle stems. The concours angle stems was $49 if my memory serves me correctly. The only difference for the concours was the threated part of the stem that goes inside the rim was a little longer to accommodate the pressure sensor. I buy the regular angle stems from my dealer (11.3 mm) for less than twenty bucks, seventeen bucks as I recall.
Good Investment if you keep an eye on your tire pressure.
Good Investment if you keep an eye on your tire pressure.