They are great. Aside from the obvious easier access, the little piston in the valve is pointing perpendicular to the centrifugal force on the tire so it doesn't leak at high speed (was told this by a very knowledgeable mechanic who did not sell them). Straight up valves leak a little bit everything you crank it up. Since I put the angled valves in I haven't had to put air in the tires other than when I wanted a different psi. I was putting air in the tires every ride before, now almost never. Be sure to get the all aluminum ones too.
Motomummy also has them for $25
I think pasha it sells them. You might want to wait for a tire change. Instead of glowy lights get a TPMS from Pashnit too!
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They are great. Aside from the obvious easier access, the little piston in the valve is pointing perpendicular to the centrifugal force on the tire so it doesn't leak at high speed (was told this by a very knowledgeable mechanic who did not sell them). Straight up valves leak a little bit everything you crank it up. Since I put the angled valves in I haven't had to put air in the tires other than when I wanted a different psi. I was putting air in the tires every ride before, now almost never. Be sure to get the all aluminum ones too.