Page 29 - 2018-v.3-Part 2(EN)

4.12 Front mudguard

If the front mudguard is fitted, when tested by the method described in the two-stage tests in
TBIS 4210-3:2016, 4.2.1 (for mudguard with stays) or 4.2.2 (for mudguard without stays), the
front mudguard shall not prevent rotation of the wheel or shall obstruct the steering.

4.13 Pedals and pedal/crank drive system

4.13.1 Pedal tread

4.13.1.1 Tread surface

The tread surface of a pedal shall be secured against movement within the pedal assembly.

4.13.1.2 Toe Clips

Pedals intended to be used without toe-clips, or for optional use with toe clips, shall have

a) tread surfaces on the top and bottom surfaces of the pedal, or

b) a definite preferred position that automatically presents the tread surface to the rider’s foot.

4.13.1.3 Pedals designed to be used only with toe clips or shoe-retention devices shall have toe clips or
shoe-retention devices securely attached and need not comply with the requirements of 4.13.1.2 items a)
and b).

4.13.2 Pedal clearance

4.13.2.1 Ground clearance

With the bicycle unladen, the pedal at its lowest point and the tread surface of the pedal parallel to the
ground and uppermost where it has only one tread surface, the bicycle shall be capable of being leaned
over at an angle of θ 2 from the vertical before any part of the pedal touches the ground. The values are
given in Ta ble 10.

When a bicycle is equipped with a suspension system, this measurement shall be taken with the
suspension adjusted to the softest condition and with the bicycle depressed into a position such as
would be caused by a rider weighing 80 kg (in case of young adult bicycles, apply 40 kg).

Table 10 — The values of ground clearance
Angles in degrees

City and trekking Young adult bicy-
Bicycle type bicycles cles Mountain bicycles Racing bicycles
Lean angle θ 2 25 23 25 23

4.13.2.2 Toe clearance

Bicycles shall have at least C clearance between the pedal and front tyre or mudguard (when turned
to any position). The clearance shall be measured forward and parallel to the longitudinal axis of the
bicycle from the centre of either pedal axle to the arc swept by the tyre or mudguard, whichever results
in the least clearance (see Figure 5). The values are given in Ta ble 11.

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