Updated on 16/01/2015: The numerous feedbacks after a year of use seem to show values that are often incorrect in use. Calibration issues are quite recurrent. This is unfortunately a disappointment compared to my conclusion from November 2013; the test should ROTOR POWER Test have been confirmed! but this is not the case. Finally! I no longer recommend this sensor! and even less so the LT version.
Rotor Power power meter crankset for a few days
the Rotor handles sprints and very industry email list short accelerations poorly
in general.
It’s designed to be lightweight! powerful! and relatively well-
priced. So! I
compared it to my PowerTap and SRM on
a few typical rides! covering all the intensities and
qualities of cycling to get a feel for the product.
726 g for the Rotor
The crankset is delivered without a chainring in 110 or 130
mm axle spacing. Announced at 505 g in 110 mm/170 mm crank! i.e. the lowest
possible weight! mine weighs 550 g in
the same configuration… too bad for compliance ROTOR POWER Test with the manufacturer’s weights. Because once the chainring! screws and batteries are in place! we reach 726 g!
i.e. + 20 g (the SRM is equipped with a perforated chainring 20 g lighter than the rotor) compared to the same model at SRM. This remains one of the lightest on the market.
686g nice SRM integration
Installation is super easy if you have
the right case. On the Rotor website there is enough to ensure compatibility with
all types of frame. It’s a BB30 crankset like any other! no need
to install a cadence sensor under the cable guide for example like on SRM. Once everything is in place! chainrings
and pedals mounted! we move on to choosing a partner for digital transformation calibration. Since there are 4
strain gauges per crank! you have to do this twice:
right crank vertically! pedal down! chain on the large chainring! start the
calibration on your computer then start again with the left. The first
number for the right must be between 700 and 3900 and the 2nd for the left
between 4000 and 7200. Small detail not indicated on the manual! if be numbers the number
4096 appears! you have to start the
calibration again.