Page 8 - TBIS_79010-2019_(EN)_1nd

TBIS 79010:2019

3.10 composite materials

component that is entirely or partially made of a non-metallic matrix materials which
is reinforced by metallic or non-metallic materials such as short or long fibres, fabric
or particles.

3.11 crank assembly

assembly for fatigue testing consisting of the drive side and the non-drive side crank

arm, the pedal spindle-adaptors, the bottom-bracket spindle, and the first
component of the drive system.

3.12 drive belt

seamless ring belt which is used as a means of transmitting motive force.

3.13 dummy fork

test fork manufactured to specific characteristics that can be substituted within a
test for either the fork supplied by the manufacturer or where a fork has not been
supplied.

3.14 exposed protrusion

protrusion which through its location and rigidity could present a hazard to the rider
either through heavy contact with it in normal use or should the rider fall onto it in

an accident.

3.15 fork steerer (fork stem)

part of a fork that rotates about the steering axis of a bicycle frame head tube.

Note to entry: It is normally connected to the fork crown or directly to the fork legs,
and is normally the point of connection between the fork and the handlebar stem.

3.16 fracture

unintentional separation into two or more parts.

3.17 hub-brake

brake which acts directly on the wheel-hub.

3.18 hub-generator

electric generating device built in the wheel-hub.

3.19 lowest gear

gear ratio which gives the shortest distance travelled for one rotation of the cranks

Page 4 for 43