The question of rollers versus wheel-on or direct-drive trainers depends on how you specifically want to train. How much you are willing to spend is also a factor.
Roller trainers are great for their simplicity and mobility. They’re great for riders who ride indoors and outdoors in equal measures because there’s no installation required. They tend to last a long time, they’re inexpensive, and they are easy to store and transport.
The simplicity comes at a cost, however. Rollers do not have the power or incline capabilities of their more complicated counterparts. They also don’t have the ability to connect with your electronic devices or track your stats.
On the other end of the spectrum are direct-drive trainers. They are on the top end of the price spectrum, and they’re often double the weight of roller trainers. They also take a bit of mechanical know-how to apply your bike.
On the other hand, they offer just about everything you’d need to optimize your training. The power output for resistance is spectacular, and they can simulate inclines (we’ve seen some that go to 15%).
Smart ones work with apps to allow you to participate in virtual races. You can also access training, track your workout statistics, and even replicate roads down to the texture. This is a huge bonus for cyclists who want to mimic riding outside.
Wheel-on trainers are in the middle range in price and features. They are heavier and generally louder than rollers, but not as expensive or complicated as direct-drive trainers. Wheel-on trainers tend to hit the sweet spot between price and utility for most cyclists.
The mounting system is usually quick-locking, so you can take your bike out with minimal fuss. The rollers can generate more resistance than rollers, and there are smart options if you want to connect your devices.