Not to hijack this thread, but I kind of disagree regarding single axles being harder to back. I've had several single axle trailers and last year I bought a small new trailer that had a tandem axle and I have to admit that it pulls better but I'd say the singles were easier to make quick maneuvers while backing up....it seems that at times my double wheels are sliding left to right rather than pivoting on a point...so I'd still prefer a single for backing into a tight spot....
...then again if you're going straight the tandem tends to stay straighter....maybe that's what people are referring to???
