Posts tagged resistance unit
If you want to know why we love those CycleOps trainers so much (especially the SuperMagneto Pro and the upgraded version of the Fluid 2), then we’ll have to take you behind the scenes a little bit, into the very mechanics of what makes a CycleOps trainer actually tick in terms of resistance…because that resistance is what really defines a trainer and its effectiveness in getting us fit!
Stationary bike trainers are made of two parts: physical elements and mathematical elements. But when it comes to resistance curves, it’s down to plain old maths.
CycleOps use wheel speed, their patented PowerTuned Technology and cadence to create four distinct resistance curves: linear, adjustable, progressive and controlled.
While each of the three factors is needed to calculate the resistance curves, PowerTuned Technology is unique to the CycleOps range of trainers thanks to PowerTap technology (PowerTap are legends of the power meter business).
Creating resistance curves with PowerTuned Technology enables CycleOps to produce the widest range of resistance at real world speeds by matching the rider with the right flywheel and resistance unit. When the optimal flywheel mass to resistance type is found, real world inertia is achieved and no unnecessary weight is added to the trainer. This is what you can call a win-win for all involved!
Using PowerTuned technology and the PowerTap powermeter CycleOps then takes the amount of power it would take for an average rider to maintain a specific speed while on the bike trainer, as shown in the resistance graphs below – each graph depicts speed horizontally on the x-axis versus power vertically on the y-axis.
Linear / Adjustable Resistance
The Linear resistance curves in the chart below are relevant for the Mag / Mag+. When you pedal faster or shift gears, the resistance changes proportionately to your adjusted speed; the Wind trainer is pure linear, while the Mag / Mag + is adjustable. And if you want to know just how realistic the resistance on these linear / adjustable-type trainers feels, well, it doesn’t really feel like a real outdoors ride. To be absolutely blunt…
This is the resistance we personally prefer, when you pedal faster or shift gears, the resistance actually increases – just like it should when you ride outdoors. Basically, at 20kmh you’re working twice as hard as when riding at 10kmh. In addition to the Fluid 2, there’s also the classic CycleOps Magneto, and SuperMagneto Pro to include in this range of Progressive resistance trainers.
Controlled resistance refers to the a head unit actually controlling your resistance, such as the resistance found when connecting to a virtual trainer program, such as CycleOps Virtual Training. This is probably the most realistic feel of all, with the trainer (such as the CycleOps PowerBeam) adjusting as you pedal.
I think I might have already covered why I like the Kurt Kinetic Road Machine so much (you might want to read this if you are unfamiliar with this amazing bike trainer) but this post is for those of you interested in the finer details, the techie stuff.
One of the major factors in considering any trainer from those guys at Kurt Kinetic has to be the resistance unit that comes with the trainer. A quite stunning piece of machinery that has ensured their trainers stay at the very top of any bestseller chart – as well as at the top of many a wish list.
The fluid resistance unit is out there on its own in terms of power and performance, especially with its non-leaky unit, something that often impacts the cheaper fluid trainers.
The unit includes 6.25 pounds of true flywheel, the biggest out there (by more than double!), an almost 3 inch roller that ensures less heat heading towards the resistance chamber, and 90ml of medical grade silicon, which is thermal dynamically neutral (which in layman’s terms means your workload is measurable, repeatable, and consistent).
And it all comes with a lifetime warranty guarantee (so even if you do KILL your trainer and it eventually leaks, you’re covered)!
To sum it all up, we found this great video from the Kurt Kinetic team, it’s well worth a look if you’re considering one of their stands…(and don’t forget their new smart trainer version of the Rock n Roller)