I ride such a "bigger more powerful bike with a flat torque curve", and there are two issues:
1. As a sibling said, there's the issue of weight. If you're inexperienced, it WILL bite you in the ass. Especially since the engine being very powerful and having great brakes, when "just starting slowly" it won't feel heavy. Hell, mine gives you the feeling it stands upright on itself. But try braking a bit harder while maneuvering and getting it tilted, and you better expect the 300 kg to want to get down.
2. As per 1, powerful engine + heft + (usually) great suspension give you a bike that feels very, very safe. Plus the torque from way down low never seems to quite "rush" you since you don't have to rev it. So it gives you confidence. Except that even though you don't feel like going fast, you actually are going fast. So you get fairly quickly in deep water, and everything is great while the sea is calm. The sea floor is right there! But you never know. Ride a bit too fast in a turn, and you better hope there aren't any trees around...
1. As a sibling said, there's the issue of weight. If you're inexperienced, it WILL bite you in the ass. Especially since the engine being very powerful and having great brakes, when "just starting slowly" it won't feel heavy. Hell, mine gives you the feeling it stands upright on itself. But try braking a bit harder while maneuvering and getting it tilted, and you better expect the 300 kg to want to get down.
2. As per 1, powerful engine + heft + (usually) great suspension give you a bike that feels very, very safe. Plus the torque from way down low never seems to quite "rush" you since you don't have to rev it. So it gives you confidence. Except that even though you don't feel like going fast, you actually are going fast. So you get fairly quickly in deep water, and everything is great while the sea is calm. The sea floor is right there! But you never know. Ride a bit too fast in a turn, and you better hope there aren't any trees around...