I just got one of these. I’m surprised how quiet it is. It also works quite well with Zwift and the App they have is very well thought out. It isn’t quite as intuitive unfortunately as the Wahoo system but once you find the settings section it is easy to set up and get it running and accurate. I haven’t tried it with Sufferfest, but I assume given the native support it will work well. And does it work? Yes, it seems to. The Kurt gave me realistic and repeatable numbers when I was using it, and the inRide app is a pretty decent effort given it's a first go. Then tell everyone you have found a more capable/stable open platform and start lobbying to make sure they will adopt it. So I received and set up my KK smart control road machine a few days ago. Gotta say I was excited to get it set up as it feels like a pretty solid product.

The built in Cadence is an Algorithm, Its going to fluctuate, I just unpaired the trainer as the cadence sensor and used my garmin speed/cadence sensor for that. I would recommend you do the same The first time I tried the trainer, it made a loud rattling noise. I updated the firmware to version 1038, and the noise went away. Kurt Kinetic Support has been totally un-helpful in the week I’ve had the new trainer. I got one reply saying that I must have failed to “power cycle” the trainer when updating the firmware and that’s it. If course I did power cycle (the instructions are clearly there) so that was kind of insulting. Although I replied immediately and have been keeping Support up-to-date with any progress I’ve made (roller tension/ANT+ cadence) they haven’t replied beyond the first mail. I Do wish that the Instructions were a bit better and help those of us using zwift calibrate the system without using a workout(it is possible, but It took me a bit to figure out.) I used the kinetic.fit app on my android phone to control resistance on the trainer in erg mode, while watching a sufferfest video through the SF app on my macbook. The trainer’s internal power measurement recorded to my phone, as well as controlling the resistance.

Zwift Hub One

They started out with limited knowledge of software development, all first generation trainers where dumb. They probably have the best mechanical design on the market. BUT the industry has moved at full speed in the integration of all sorts of KPIs in fancy software and thus starts the pivot of KK to becoming a software development company. I dare to say they have acquired the expertise in house but maybe it’s outsourced. That’s a whole other debate but to make it simple, outsourcing only increases delays in delivery and doesn’t guarantee better quality. I wondered about getting one when they came out - I fancied the idea of reasonably accurate power reading, without some of the vagaries of VP, especially in sprints and high accelerations. That's really all the difference between the two though... our iOS App supports the Mio Velo and 4iii’s Viiiiva for ANT+ bridging (something Apps based on Wahoo’s closed-source SDK cannot support) The kinetic energy formula defines the relationship between the mass of an object and its velocity. The kinetic energy KE equation is as follows: With that in mind I personally find the price offensive (even given the application costs), and it stopped me from considering it - I know i'm far from alone in that regard. Think they dropped one on this....

Translational kinetic energy — the most well-known type. It's related to the motion of an object traveling in a particular direction and the distance it covers in a given time. This is the kind of energy that you can estimate with this kinetic energy calculator.

Kinetic Energy Calculations Used Here:

Really sorry to hear about the troubles here man. I just took a look at your career to get the context of your issues. The problems you’re experiencing are due to what’s known as the “resistance floor” of your trainer. What that means is, your power target is below the wattage at which your trainer can apply resistance to sustain. Think about it like this: it takes a certain amount of power to simply turn the cranks at whatever gearing ratio you’re in on the trainer — just like on the road. So this explains why you began to get better results once you changed into an easier gearing ratio. Note that these “resistance floors” (often referred to as “wattage or power floors”) vary from trainer to trainer. So when you’re experiencing this “resistance floor” and your power isn’t being held down to the target (which is too low for your trainer to adjust to considering your gearing), you should try to change into that easier gearing ratio to try and reduce the amount of resistance needed to bring you down to that target. How about you give our kinetic energy calculator a try? This tool does any and every calculation for you after typing the mass and velocity of an object. It even works in reverse, just input any two known variables, and you will receive the third! If you don't know the object's speed, you can easily calculate it with our velocity calculator.

Wattage measurements are also based on a 'virtual power' algorithm that relates to wheel speed rather than an actual strain gauge or torque measurement. That means it won't spike suddenly under power to give peak readings until the wheel has actually accelerated up to speed. The fluid temperature takes a while to warm up, too, and reach the correct viscosity for accurate readings, but once it is the wattage figures are consistently accurate when cross calibrated with the Stages cranks on our test bike. There's a big difference in the resistance unit too, though that's not so obvious. Kurt make great play of the fact that other fluid filled turbos are prone to failure at the point where the shaft enters the fluid bath. They're mostly well sealed, of course, but it's a weak point and Kurt claim their punishing in-house tests with their cadence robot, Crank Armstrong, can break a competitor's resistance unit within hours. Theirs, on the other hand, has logged over 40,000 miles without a problem. So, what's the secret? Well, the Kurt resistance unit is in two parts – a flywheel and a fluid chamber – that are magnetically coupled, so the fluid section is independent of the flywheel. The magnets are strong enough to cope with more torque than even the robot can supply, so you won't uncouple them on the sprints, and there are no seals to wear and fail. It's a simple and very elegant solution.In addition, as of Nov 24th, Kinetic is also including an 11-speed cassette in the box. At some point in the next few months they’ll work to get that actually pre-installed, but hey – including it in the box is way better than not including it at all. In my case, I was pre that date, so I just went out and bought another. By now Wiggle assumes I’m laundering in cassettes. As we said in the pricing part of the review, brand is a really important consideration, but especially so when looking to buy Turbo Trainers. But as you’re probably already aware, you’re on to a great choice if you do go with Kinetic, as they’re a fantastic brand, making amazing products. The only question I have left unanswered is does the smart control trainer still behave like a non-smart kinetic trainer when it’s not plugged in? In other words, if I decide to do a not-plugged in ride, like if I’m next to my car warming up for a race in the middle of nowhere, will it still have the same resistance/speed curve that my good old trusty road machine has?