Page 11 - 2018-v.2-Part 1(EN)

TBIS 4210-1:2018

2.17
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

2.18
dummy fork
test fork manufactured to specific characteristics which can be substituted within a test for either the
fork supplied by the manufacturer or where a fork has not been supplied

2.19
folding bicycle
bicycle designed to fold into a compact form, facilitating transport and storage

2.20
fracture
unintentional separation into two or more parts

2.21
fork steerer (fork stem)
part of a fork that rotates about the steering axis of a bicycle frame head tube

Note 1 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.

2.22
fully assembled bicycle
bicycle fitted with all components necessary for its intended use

2.23
highest gear
gear ratio which gives the greatest distance travelled for one rotation of the cranks

2.24
hub brake
brake which acts directly on the wheel hub

2.25
hub generator
electric generating device built in the wheel hub

2.26
lowest gear
gear ratio which gives the shortest distance travelled for one rotation of the cranks

2.27
maximum inflation pressure
maximum tyre pressure recommended by the tyre or rim manufacturer for a safe and efficient
performance

Note 1 to entry: If the rim and tyre both indicate a maximum inflation pressure, the maximum inflation pressure
is the lower of the two pressures indicated.

2.28
maximum saddle height
vertical distance from the ground to the point where the top of the seat surface is intersected by the seat-
post axis, measured with the seat in a horizontal position and with the seat-post set to the minimum
insertion-depth mark

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