This summer, Rotor introduced their Power LT (as in “power light”) single sided crankarm power meter placed on the non-drive side. It is essentially the same apparatus used on the full, two-sided Rotor Power crankset, except that it calculates total power output from a single side by doubling the number and sending that to your cycling computer.
Apparently, some pros and sponsored teams wanted it to be on drive side, where the chainrings could protect the battery/transmitter protrusion from damage (think barrier bunny hops, errant tree stumps, etc.). It’s built on their 3D+ hollow machined alloy crank arms and keeps all the high resolution data transfer of the original. Things like torque effectiveness, pedal smoothness and total power are all provided, just averaged to give a total number from one arm, er, leg. Available now in 130BCD and 110BCD (shown after the break), and the left sided LT model will remain in the line, too.
Retail is $1,490 / €990.