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Your Tern has many advanced parts and components. Many bicycle service and repair tasks require special knowledge and tools.
Do not begin any adjustments or service on your bicycle unless you are able to properly complete them. Improper adjustment or
service may result in damage to the bicycle or cause serious injury. Consult your dealer if you need any help.
Keeping It Real
When replacing components such as the Frame, Fork, Tires, Rims, Brakes, Front and Rear Lights, Kickstand, Handlebar, Handlepost, Stem,
Drive Unit, Battery, or Control Unit/Display, etc., use the original spare parts or Tern-approved replacements. They are tested to ensure they
work safely with your Tern pedelec. We recommend you visit a Tern dealer for parts and repairs.
Service actions that you can (and should) perform do not require special tools or knowledge beyond what is presented in this
manual. They are listed below:
Stay Slick
Remember to maintain and lubricate your bike using appropriate lubricants. Ask your dealer when and where to lubricate on your bike.
Air
The Wheel consists of a Hub (1), Spokes (2), Rim (3), Tire (4), Valve (5) and
Axle (6).
The Valve may be a Schrader (7) or a Presta (8) type. Presta Valves have a
Valve Cap (9) that must be loosened before inflating.
Check the air pressure is within bounds as indicated on the sidewall of the
Tire.
Check your Tires to see if they have adequate tread depth and no
punctures.
14. Service
Battery capacity
Batteries, measured in watt-hours, have different energy capacities. In general, the more watt-hours,
the longer the range, the more expensive battery, and the heavier your pedelec is.
Ambient temperature can have a significant impact on battery capacity. Battery capacity is tested at a reference temperature of 23°C
(73F). Large deviations from the reference temperature will drain the battery faster due to changes in internal resistance and will shorten
the range.
As the battery ages, the original capacity diminishes. This is true of all batteries but some chemistries last longer than others.
You can always check the amount of charge remaining in the battery from the control display.
