I am not sure if this is the same Trailmaster company or not, but I once owned a Trailmaster boat trailer. I had a bass boat that weighed in at a little over 2600 LB. and I pulled it everywhere. I cannot guess how many mile I put on it. It was a fabulous trailer. The paint and quality of this trailer was as good or better than anyone elses on the market.
The only thing I can see about this trailer that I would add is a floor to help keep road grit and junk off of bike.
Do you know how this trailer compares in price to an enclosed one?