Page 13 - 2018-v.2-Part 1(EN)

TBIS 4210-1:2018

2.41
rim-brake
brake in which brake shoes act on the rim of the wheel

2.42
screw thread locking devices
devices attached or applied to the threads of a nut or bolt, so that they do not unintentionally become
unlocked

EXAMPLE Lock washers, lock nuts, thread locking compound, or stiff nuts.

2.43
seat-post
component that clamps the saddle (with a bolt or assembly) and connects it with the frame

2.44
secondary retention system
system that retains the front wheel in the fork dropouts when the primary retention system is in the
open (unlocked) position

2.45
simulated ground plane
plane used to orient a test part or assembly in a way that represents the cycles alignment to the ground
in a fully assembled cycle

2.46
suspension fork
front fork incorporating controlled, axial flexibility to reduce the transmission of road shocks to the
rider

2.47
suspension frame
frame incorporating controlled, vertical flexibility to reduce the transmission of road shocks to the rider

2.48
tandem
bicycle with saddles for two or more riders, one behind the other

2.49
toe clip
device attached to the pedal to grip the toe end of the rider’s shoe but permitting withdrawal of the shoe

2.50
visible crack
crack which results from a test, wherein that crack is visible to the naked eye

2.51
wheel
assembly or combination of hub, spokes or disc, and rim, but excluding the tyre assembly

2.52
wheelbase
distance between the axes of the front and rear wheels of an unladen bicycle

2.53
young adult bicycle
bicycle designed for use on public roads by a young adult whose weight is less than 40 kg, with maximum
saddle height of 635 mm or more and less than 750 mm

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