Council Directive 93/14/EEC of 5 April 1993 on the braking of two or three-wheel motor vehicles (repealed) (c. 14)

ANNEX

Appendix 2 Requirements applicable to two-wheel mopeds, two-wheel motorcycles and tricycles equipped with anti-lock devices

4. UTILIZATION OF ADHESION

4.1. General

4.1.1. In the case of two-wheel motorcycles and tricycles, braking systems equipped with an anti-lock device are deemed acceptable when the condition

ε ≥ 0,70

is satisfied where ε represents the adhesion utilized as defined in the addendum to this Appendix(1).

4.1.2. The coefficient of adhesion utilization ε must be measured on road surfaces with a coefficient of adhesion not exceeding 0,45 and of not less than 0,8.

4.1.3. Tests must be carried out with the vehicle unladen.

4.1.4. The test procedure to determine the coefficient of adhesion (K) and the formula for calculating the adhesion utilization (ε) are as prescribed in the addendum to this Appendix.

(1)

For two-wheel mopeds, until a minimum value for ε has been established, the measured value must be recorded in the test report.