hey jerm21 you really do need to spend the money on the little pump, it has the gauge and an air bleeder with it, and it is weird how it works, it just spurts a little bit of air each pump, and even though it will take up a bit of room in the saddlebag, it comes in a well protected, albeit bigger than need be box. now that's something that needs a hard plastic sort of foam protected box. hmm, good thinkin.... note to self, find out if there is demand for such a product at a reasonable price. retirement, here i come. nice thread, as i am still not sure what psi to run in my 08 streetglide with solo me weighing 200#. lots of useful information in this forum, i'm glad i found it.