Heavier riders on bike trainers?
Trainers that clip onto your rear wheel aren’t a good option if you’re over their weight limits. They support much of your weight on your rear axle quick release and this can put a lot of stress on components that aren’t designed for this type of static loading. If your bike breaks or the trainer breaks, you don’t have any grounds for a warranty claim or a liability claim if you hurt yourself. 

A stationery bike is a much better option as they’re often built more sturdily. Check on Craigslist, they’re often quite cheap especially in the spring when people are clearing out their garages. 

Or, go bike outside. There’s almost no unbikeable weather, even Minnesota in the winter — or Minnesota in the summer. (Wink)