When looking at indoor trainers, we tend to look for a few things — a realistic feeling flywheel, lateral stability, low noise levels, and programmable training features. Not surprisingly, the CycleOps PowerBeam Pro Trainer encompasses all of the above and then some. Starting with the most rudimentary functionality, the PowerBeam Pro Trainer is both foldable and portable. The setup of the base is beyond simple, and with CycleOps’ quick-cam locking mechanism, getting the bike in and out of the trainer is a fast process. Basically, all that you need to do is to position your rear axle to the mechanism and then turn a dial. That’s it, and you’re ready to ride. And once you get going, those around you will be pleased that the PowerBeam Pro is ranked as one of the quietest trainers in the CycleOps lineup. Furthermore, CycleOps states that the PowerBeam Pro is its most stable trainer, leaving you to live in the pain cave during heavy intervals — not worrying that you’re going to tip over. However, we still recommend using the Climbing Riser Block if you intend on getting out of the saddle for any duration of time. And even if your floors aren’t particularly level, say when you’re subjected to the basement, the trainer features a single-leg leveling adjustment in order to compensate for uneven surfaces. For the actual aspect of rolling, CycleOps included its PowerTuned flywheel. This heavy wheel creates a mimic of true rolling by optimizing inertial effect. What does this mean? Let’s have a little physics refresher course. Inertia is the tendency of an object to resist a change in motion. So, when force is typically applied to a common flywheel, resistance is felt, but dead weight creates dead spots in the wheel’s motion. This means that the trainer feels more like you’re pushing against a resistant cylinder than riding a bike.