P. 47
Tire pressure adjustment
Regularly check that tire pressure matches
the pressure recommended by the tire
manufacturer (the recommended pressure
is shown on the tire’s sidewall as shown
below):
A) Commercial tire size naming (ex: 16x1.25,
20x2.10, 24x1.95, 26x1.95, 700x38C, etc.)
B) International standard ETRTO tire size
naming (tire and rim width per diameter
interface, in millimeters)
C) Manufacturer’s recommended tire
pressure range (kPa unit)
D) Manufacturer’s recommended tire
pressure range (PSI unit)
E) Tire’s intended rotation direction
Identifying the style of valve
There are two major types of modern valves;
Presta (French) or Schrader (American). The
illustration below shows the difference.
A) Presta valve (also known as French type)
B) Schrader valve (also known as American
type)
C) An adaptor can be used to convert a
Presta valve to a Schrader valve.
Most bicycle pumps can be used with
both types of valves, either through a
dual-type pump head or by reorienting
the pump head’s rubber joint. If you’re
unsure how to use a pump, ask a
qualified technician.
Riding with insufficient tire pressure can
lead to a puncture of the inner tube and
/ or damage to the tire and rim.
Riding with insufficient tire pressure will
reduce the autonomy range of the power
assist system!
Recommended pressure for Azteca with
factory supplied tires:
Tire Type/Size Pressure Range
Regular – 20” x 2” 30-55 PSI
Fat – 20” x 4” 5-30 PSI
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