they found they used Eco most of the
time, occasionally stepping up to Tour
on steeper climbs. They almost never
touched Sport, unless it was a really
steep hill, and found that in those cases
Turbo mode provided no additional help.
Though the power cuts off officially
at 28 mph, it starts to taper before that.
The good part of that is, it’s less of a
drag than when the power just drops
off a cliff. Bosch motors can run with
cadence up to 120 rpm, at which point
they cut off. If you happen to be looking
at the display while you ride, you can
see a shift suggestion arrow when you
get close to that cadence.
Also, they said they never ran out of
gears, even on slight downhill grades.
The SRAM 1x gearing was very well set
up, especially over 11 gears in the rear.
The 20-tooth front chainring is a little
taller than the usual 17-19 setup on
Bosch-spec’d mountain bikes.
Battery life was good in Eco, up to
30 miles on the 400-watt-hour battery on the hilly terrain in Southern
California, but much less than the
claimed 65 miles in optimal conditions.
Models shipped in 2017 will have the
new 500-watt-hour Bosch batteries, a
25-percent-higher capacity, but they
weren’t available in the U.S. at the time
we had the bike. The coolest thing
about the new batteries is that they’ll
retrofit older bikes as well.
In Turbo mode, the range was properly awful, about seven to eight miles.
In Eco, it was estimated that one test
rider was doing 60–70 percent of the
work, enabling him to ride 5–6 mph
“Hard-core road- ies will frown on it, at least until they