For sale: used Watteam Powerbeat Power Meter. This is the model that Phil Gaimon used last year. Currently installed already on a Shimano Ultegra 6800 172.5mm crank which I will throw in for a few dollars extra. If you are familiar with the brand, you know that the company has gone under. I’ve had success with the unit and have 2 extra comp units to include, as well as 1 extra sensor in case you want dual sided or just extra parts in case things go wrong. I found it was solid and best to calibrate to my trainer. Consistent for months at a time. Buyer assumes risk that company has closed and that it may be moody to set up at times. I am happy to consult and share knowledge if you have trouble. Feel free to ask questions. Thank you for your interest.