MZ/MuZ Riders

Can someone fill me in on the size valve stem I need for the Skorpion's rims? Are all valve stems the same size?

As far as I know, tubeless bike valve stem (.327" diameter)is smaller diameter than car/truck stuff. (.453' or .625")
some different lengths and angles available if you look hard enough.
Most any bike dealer or bike parts/tires mailorder has the rubber pop in ones pretty cheaply.
Not a bad idea to replace with the tire.

The ultimate is the high pressure metal valve if you have a NAPA auto parts nearby.

http://napaonline.com/Catalog/Result.as ... 1&Dp=3&N=0

The metal ones like NAPA has are what are typically used with tubeless conversions.