The Garmin Vector power meter offers left and right leg power measurement in a pedal-based system which – and this is what clinches it for many riders – is relatively simple to install and switch between bikes. Garmin have now also launched the Vector S as a single-sided system (measuring power from the left leg and doubling it to provide an overall estimate) for riders less concerned by having the utmost in accuracy, which slashes the price from £1,199 to £749.99.

Price: £1,199

garmin.com