This looks very interesting, I am looking at turbo trainers and am drawn to the BKool (not wanting to
Hi-jack the thread) are you all happy with the BKool (I.e noise, service, interactivity, costs)?
It's easily the cheapest trainer I could find with the option of doing video rides. It's very heavy, compared to my other turbo, but also very stable.
It takes rubber off the rear tyre, which my other turbo doesn't do.
I find that on steep hills (maybe 8% gradient and above) I can't pedal as smoothly or as quickly as I can on the road. This might be a hidden benefit, as it seems to be making my legs stronger

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I don't know how Bkool calculates wattage, and they don't claim that it's as accurate as a proper power meter, but it's not hugely inaccurate. The last three rides I've done, Bkool has shown average power of 138.7, 133.5 and 151.3. My Powertap showed 150.0, 140.0 and 164.0. So, the Bkool figure is between 90 and 95% of the PT. Probably not accurate enough for high level training, but close enough (and consistent enough) to be useful to a recreational cyclist.
I can't comment on noise levels as I always use earphones, but the neighbours haven't complained.
There's a voucher in the box it comes in to get 2 free months Gold subscription (needed for video rides), and when I activated it I got the chance to buy a 12-month sub at half price - so I got 14 months for under £50, which I'm happy with. I was a little worried when, part way through the subscribing process, the page suddenly switched into Spanish. Google Translate helped me work out what to type in each box, and it went through first time. If you don't want video, you can do rides using Google Earth for free.
I sometimes get messages saying Google Earth crashed, so I have to restart the ride. I've also had "you do not have sufficient bandwith to play videos", but a restart usually fixes that problem as well.
Most of the videos are in Spain, but lots of the big TdF climbs are in there and I expect that as more videos are added the area covered will widen.
One thing that puzzles me is descending. If I stop pedaling, I slow down and eventually stop. If I keep pedaling, my bike computer says I'm doing (say) 25 mph while Bkool says I'm doing 40. The speed display goes red when this happens. There obviously isn't a motor in the unit to simulate going downhill, but there must be something in the software that adds extra speed to the speed that you're pedaling at. The result is that Bkool shows a greater distance travelled than my bike computer does. I've done rides that Bkool shows as 30 miles, and the bike computer shows as 27. I then have a moral dilemma about what distance and average speed I put in my records. Being a modest person, I use the bike computer figures

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Overall, I'm really glad I bought it. I've never minded doing long turbo rides - I'm just made that way. But this makes indoor sessions much more fun.