Bkool's simple frame uses bike weight to maintain roller tension with a solid axle lock cam for steady sprinting.
The ribbed metal roller helps grip but there's noticeable buzz and our sample had a noticeable bump in the roller which thumped every revolution. We'd hope that's a one off and thankfully it's less noticeable the faster you go.
The ducted engine is pretty noisy and labour intensive to get going, but there's plenty of spin to keep things smooth once you're up to speed. The range of resistance is massive.
You are required to go through a set-up process and register online. Pay the £80 annual (or smaller monthly) subscription and you get access to online training sessions, videos, multiplayer online racing and detailed workout feedback.
You can also download routes and training plans that feed directly into the engine and onto your PC screen. There are rental options, which are a great idea if you want to try before you buy.
The potentially confusing Apple icon on the box means that you can use an iPhone/iPad/iPod as the display head unit, as the supporting software will currently only run on a PC.