Page 13 - 2018-v.3-Part 2(EN)

TBIS 4210-2:2018

It shall be possible to fit the dimension gauge shown in TBIS 4210-4:2017, Figure 3 over the brake lever
(or a secondary brake lever) and the handlebar grip or any other covering in at least one position
between points B and C indicated in Figure 2 c), without causing any movement of the brake lever
towards the handlebar. The dimension d shall not exceed 100 mm.

Conformance shall be established by the method detailed in TBIS 4210-4:2017, 4.1.2. The range
of adjustment on the brake lever should permit these dimensions to be obtained.

Dimensions in millimetres

a) Type A b) Type B

c) Type C

Key
1 pivot
a distance between the last part of the lever intended for contact with the rider’s fingers and the end of the
lever
B point of L/2
C point of 20 mm (in case of an extension brake lever, 15 mm) from the end of the lever
d brake lever grip dimension
L the distance between the centre of the lever pivot and the lever tip end

Figure 2 — Brake lever grip dimensions

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