Powertap p1s pedal powermeter setbuilt to be just as robust and just as precise as its world renowned sibling the powertap p1s has all the innovation of the p1 pedals at a fraction of the price named for its single sided nature the p1s doubles the watts produced by the left pedal to calculate total power the powertap p1s also touts the same plug and play installation easy to swap cross bike compatibility along with dual band ant and bluetooth as its bi lateral counterpart ideal for the bi