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Council Directive 93/14/EEC (repealed)Show full title

Council Directive 93/14/EEC of 5 April 1993 on the braking of two or three-wheel motor vehicles (repealed)

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2.1.Provisions relating to tests of vehicles with braking devices operating on the wheel or wheels of the front or rear axle only:
2.1.1.Test speed V = 40 km/h(1) for mopeds.

Test speed V = 60 km/h(1) for motorcycles (with or without sidecar) and tricycles.

2.1.2.Braking performance with the vehicle laden
2.1.2.1.For the purposes of the type-I residual performance test (motorcycles with or without sidecar), the recorded performance levels in terms of stopping distances, mean fully developed deceleration, as well as the control force used, are recorded.
2.1.2.2.Braking with the front brake only
a

For mopeds with a maximum speed of 25 km/h or lower which have a wheel rim of 45 mm or less (code 1,75), this value is 2,8 or S ≤ 0,1 + V2/73. If this value cannot be achieved by each braking device because of limited adhesion, the value 4,0 m/s2 must be applied for a test on a laden vehicle using both braking devices simultaneously.

b

If these values for single braking devices cannot be achieved because of limited adhesion the following values shall be substituted for a test with the vehicle laden using both braking devices together:

— three-wheel mopeds

:

4,4 m/s2;

— two-wheel motorcycles

:

5,8 m/s2.

CategoryStopping distance (S)(in m)Corresponding mean developed deceleration,(in m/s2)
Two-wheel mopedsS ≤ 0,1.V + V2/903,4a
Three-wheel mopedsS ≤ 0,1.V + V2/702,7b
Two-wheel motorcyclesS ≤ 0,1.V + V2/1154,4b
Motorcycles with sidecarS ≤ 0,1.V + V2/953,6
2.1.2.3.Braking with the rear brake only
a

If these values for single braking devices cannot be achieved because of limited adhesion, the following values are substituted for a test with the vehicle laden using both braking devices together:

— three-wheel mopeds

:

4,4 m/s2;

— two-wheel motorcycles

:

5,8 m/s2.

CategoryStopping distance (S)(in m)Corresponding mean developed deceleration(in m/s2)
Two-wheel mopedsS ≤ 0,1.V + V2/702,7
Three wheel mopedsS ≤ 0,1.V + V2/702,7a
Two-wheel motorcyclesS ≤ 0,1.V + V2/752,9a
Motorcycles with sidecarS ≤ 0,1.V + V2/953,6
2.1.3.Braking performance with the vehicle unladen
2.1.3.1.A practical test of the vehicle driven by the driver alone is not required if a calculation shows that the distribution of the mass on the braked wheels allows a mean fully developed deceleration of at least 2,5 m/s2 or a stopping distance

S ≤ 0,1.V + V2/65

to be achieved with each of the single axle braking devices.

(1)

Vehicles the maximum speed (Vmax) of which is lower than 45 km/h in the case of mopeds, or 67 km/h in the case of motorcycles (with or without sidecar) and tricycles are tested at a speed equal to 0,9 Vmax.

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