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RECOMMENDATIONS AND MAINTENANCE
6.4 Definition of Tampering and Recommendations
Motor
Sensors
Controller
Electric cables
Controls on the handlebar
Display
Battery
Battery charger
Frame
Fork (including suspension)
Hubmotor wheel
Brake system
Brake shoe
Luggage carrier
Bottom bracket
Cranks
Wheel without hub motor
Chain or belt (at original
width)
Rim tape
Tyres (at orginal ETRTO
specifications only)
Mechanical / Hydraulic
brake cables
Brake system (for drum,
disc and roller brakes)
Handlebar and stem
(without alterations to the
handlebar and stem)
Saddle and seat post
(maximum variation from
original should not exceed
20mm)
Headlight
Headset
Pedals (at the same width
as the originals)
Derailleurs
Shifters
Shifting inner / Outer cables
Chainring / Belt drive ring
Cassette / Freewheel or
cogs (when the cogs are
the same as the originals)
Chaincase
Mudguards (only the same
size as the originals and
mounted at least 10 mm
distance from the tyre)
Spokes
Inner tubes
Dynamo
Front light / Front reflector
Rear light / Rear reflector
Wheel reflectors
Kickstand
Grips (with a screw clamp
only)
Components which can
only be replaced after
approval from the bicycle
manufacturer / electronic
system provider
Components which can
only be replaced after
approval from the bicycle
manufacturer
Components which can
only be replaced after
approval from the bicycle
or component manufactur-
er
Components which can be
replaced without approval
Category 1
Category 2
Category 3
Category 4
WARNING:
Modifications to any part of your bike, such as the fork or frame, may make that part or the entire bike unsafe. A poorly
installed or modified component can increase the stress on all other parts, greatly increasing their chance of failure.
Modifications can also adversely affect the handling of your bike, resulting in loss of control, falls and serious injury. Please
do not add, remove, or modify parts of your bike in any way before consulting with a trained bike technician. We recommend
you consult with us at NCM before you make modifications or add parts, in order to confirm their safety and compatibility with
your bike.
