Are they the Spirit-40s or the Spirit-50s? I picked up a set of Spirit-50s back in June for my summer road trip for $90 from Motorcyclegear.com (formerly Newenough). They hold about twice as much as the 40s and fit nicely on the late model NH750. They really came in handy on the trip and they're also convinient for everyday use. If I know I'm hitting the grocery store on the way home from work, it just takes about 10 seconds to pop them on and secure them. I run the straps over the seat, but they'll also work under it.
