I had a 19 over 20 years ago so I don't really remember. I would
suggest, however, that you go with the short valve stem and have an
extension in the aircraft. Reason being that, if the stem is too long,
one revolution of the wheel will remove it.

On 9/20/2015 7:28 PM, wrote:
I'm looking to buy a spare inner tube for my 19 but I don't have the tube handy to take measurements. I know it's a 500 x 5 with a 90 degree bend in the valve stem but I don't know if I need a long valve stem or a short valve stem. Any assistance is appreciated! Thanks in advance.

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Dan, 5J