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Butchers & Bicycles
Butchers & Bicycles
MK1-E MY18 (A_01)
MK1-E MY17-18 (A_01)
DRIVETRAIN
The “drivetrain” of your MK1-E cargo bike is
the collective term for the components that
transmit power from the pedals and drive
unit to the rear wheel, and are responsible for
shifting gears. Refer to below paragraphs for
information about the drivetrain that your
cargo bike is equipped with.
DANGER
Practice shifting gears in an
area away from heavy traffic. Only ride the
cargo bike in traffic once you can operate
the controls instinctively and can have
your full attention on the road!
SRAM NX 1x11
See illustration
M
SRAM NX is a derailleur type drivetrain with
11 speeds. The power is transmitted through
a chain (
c
) from the motor and pedals to
a cassette (
a
) — a set of differently sized
sprockets attached to the rear wheel. The
derailleur (
b
) is the mechanism that moves the
chain between sprockets when you shift.
Ɂ Lever (
d
) shifts into lower gear.
Ɂ Lever (
e
) shifts into higher gear.
Ɂ You can only shift gears while pedalling.
This means it can be a good idea to shift
into a low gear before coming to a stop.
This will make starting again easier.
Ɂ Shifting gears under heavy load (such as
when you press hard on the pedals) is not
recommended. For best performance,
release pressure to the pedals momentarily
while shifting.
Ɂ The chain is exposed to the elements and
will become dirty over time.
A dirty chain may shift poorly and wear
out prematurely. Clean and lubricate the
chain and cassete regularly.
Ɂ Keep body parts and clothing away from
the chain. They could get caught between
the chain and sprockets!
For more details on servicing and
adjustment of gears, refer to SRAM manual
available at
butchersandbicycles.com/support
NuVinci N380
See illustration
N
The NuVinci N380 is a drivetrain with a
continuously variable gear ratio. You can freely
choose the desired gear ratio by rotating the
shifter grip (
d
). The mechanism is enclosed in
the hub of the rear wheel (
a
) and maintenance
free. The power is transmitted through a Gates
belt (
b
).
Ɂ Rotating the grip shifter (
d
) forward gives
lower gear ratios and the indicator (
c
)
shows more of a hill.
Ɂ Rotating the grip shifter (
d
) backwards
gives higher gear ratios and the indicator
(
c
) shows more of a flat.
Ɂ You can shift gears even under load.
Ɂ You cannot shift through the whole ratio
range while stopped. 50-70% of the shift
range is typically accessible, while the
remainder is accessible with a little pedal
rotation.
For more details on servicing and
adjustment refer to NuVinci manual
available at
butchersandbicycles.com/support
NuVinci N380+ H|Sync automatic shifting
See illustration
O
A MK1-E cargo bike equipped with the
Harmony H|Sync system will shift gears of the
NuVinci transmission automatically. There is
no shifter on this system — instead you set
the preferred cadence (the speed at which
you pedal). Once set, the H|Sync system will
automatically maintain the selected cadence
independent of the motor, your own power
input and the topography of the route. At a
stop, the system will automatically choose a
proper ratio for subsequent easy and energy-
saving acceleration.
The following steps apply to an eBike
with an Intuvia On-board computer. If your
eBike is equipped with a different computer,
please refer instructions found at
butchersandbicycles.com/support
To adjust cadence:
Ɂ Press [
i
] button (
d
) on the On-board
computer's controller (
25
) for 3 seconds.
The On-board computer (
27
) will display
"NuVinci Cadence"
Ɂ Adjust the cadence with the [+] [–]
buttons on the On-board computer's
controller
For more details on servicing and
adjustment, refer to Harmony H|Sync
manual found at
butchersandbicycles.com/support
Gates CDX Carbon Belt
MK1-E cargo bikes equipped with a NuVinci
drivetrain use a carbon drive belt (
9
) to
transfer power to the rear wheel. Some points
to keep in mind when using your Gates Carbon
Belt equipped MK1-E:
Ɂ
Do not attempt to reinstall a belt
that
has fallen off. Contact a Butchers &
Bicycles authorised dealer.
Ɂ
Do not lubricate the belt
. You can rinse it
with clean water to dislodge any debris.
Ɂ
Proper tension
and drive alignment is
key to optimal performance. Lack of belt
tension can lead to “skipping”. Too much
tension can damage other components and
increase the wear of your carbon belt.
For more information on servicing
refer to Gates Carbon Drive manual found
at
butchersandbicycles.com/support
