Found: Token Valve Extender w/ Campagnolo EPS Magnet Plug Port

Oops,should say valve cap, not valve extender

So why would someone pay maximum dollars for an aero wheel that needs a valve extender only to put he magnet weight on there to add back some rotating weight? Kind of silly don’t you think? What was wrong with putting the magnet in your car or garage when you started your ride?

Actually, the key isn’t a stupid idea at all, despite the baseless pronouncements. It is possible to store it in a secure spot at home just like many other things that you don’t want to get lost, like a spare set of keys, heart medicine, a thumb drive, or even a spoke key. I’ve successfully gone about 20 years without losing a spoke key (Whoa!) Also, as it happens radial forces from rotation would keep the magnet in place. And guess what: the faster the wheel turns, the greater the force holding the magnetic key in place! Go twice as fast, and that key will be held in place with 4x more force! It’s a physics thing (this will be helpful: http://en.wikipedia.org/wiki/Physics ). Token’s idea may not be so good however for harmonic impulses from rotational motion (uh, it might make a wheel significantly out of balance).