"I've always wondered about the wisdom of sticking a wheel into the tailblock of a bass. Just doesn't feel right to me."
At a camp or something that trolley thingy might trump a wheel but it can't beat the wheel for my general use.
Around town my
old (1820) and
fragile (20 gazillion repairs per square inch) bass does great with an inflatable 6" dubro wheel and fitting I got from Pat Neher almost 20 years ago when he was fabricating them as a sideline (one of the best gifts I've ever received!). I honestly would not be concerned about using a good wheel if you avoid extreme rally and off road sports - though it is fine on gentle gravel or
gently over a curb. The bass, in my experience, is in
far more danger out of the bag and on stage! When the tire wears out I can use
THIS $17.49 replacement tire (with a 1/4" drillout) which BTW also fits on the bass wheel device from Lemur. The wheel device Pat gave me which the tires attach to should last the rest of my life.
HERE is a non inflatable foam core replacement tire which I would not be reluctant to use either.
The Goetz endpin collar is going strong after 25 years. Oh, and doors, strange passageways, stairs, elevators, crowds etc. are easy to negotiate as the wheel is small, perfectly attached, highly maneuverable, light, and easily picked up with the instrument. It takes up no space in the vehicle and whipping the endpin in and out is a piece of cake. A good wheel will not wobble if the set screw is also good. For versatility nothing can compare IMO.