Efficient is the wrong word, I'd like to think that a motor producing less power and torque will indeed use less energy and therefore give more range. So just lower powered.I thought the Bosch Active Cruise was supposed to be more efficient than the Bosch Performance CX? lower torque so less performance in each level of assistance but better range.
Sounds like a glowing endorsement. With regards to the 8 speed hub, does it have a range like the 12-36 the reaction has? I can't seem to find any info on it other than it having eight speeds.[/QUOTE]
The hub may eat into some of those savings though, perhaps it negates them all. My comments were more about you pedalling with the motor turned off, there are more gears to turn in those newer Bosch motors, and it has to be taking some of your power.
Nexus 8 on here, same gears as the Alfine, I like my Nexus 8 overall, living in a hilly area I'd prefer just a little more range, but it just about suits me perfectly. and it's easy to adjust the range up or down on the chart with a simple sprocket change.