A reminder to save yourself some pain and maybe loosen these yearly - at the least. Spent about 4 hours over two days lying under trailer with lots of penetrating oil trying to get the rusted bolts loose.
New:
They're fairly easy to reach if you slide under the corner of the trailers, pull...
Have been looking at trailers past couple of weeks, most have been around 2008-2012 so 7-11 years old. Most of the owners couldn't say when tyres last changed, or that they had never changed them. One we bought was 2008, checked the dot marking - tyres probably have been changed around 2010...