Council Directive 93/14/EEC (repealed)Show full title

2. PERFORMANCE OF BRAKING DEVICES

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.
Category	Stopping distance (S)(in m)	Corresponding mean developed deceleration,(in m/s2)
Two-wheel mopeds	S ≤ 0,1.V + V2/90	3,4a
Three-wheel mopeds	S ≤ 0,1.V + V2/70	2,7b
Two-wheel motorcycles	S ≤ 0,1.V + V2/115	4,4b
Motorcycles with sidecar	S ≤ 0,1.V + V2/95	3,6

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.
Category	Stopping distance (S)(in m)	Corresponding mean developed deceleration(in m/s2)
Two-wheel mopeds	S ≤ 0,1.V + V2/70	2,7
Three wheel mopeds	S ≤ 0,1.V + V2/70	2,7a
Two-wheel motorcycles	S ≤ 0,1.V + V2/75	2,9a
Motorcycles with sidecar	S ≤ 0,1.V + V2/95	3,6

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.

2.2. Provisions relating to tests of vehicles of which (at least) one of the braking devices is a combined braking system

2.2.1. For the purposes of the type-I residual performances test on motorcycles (with or without sidecar) and tricycles, the recorded performance levels in terms of stopping distance, mean fully developed deceleration, as well as the control force used, are recorded.

2.2.2. Test speed V = 40 km/h(2) for mopeds.

Test speed V = 60 km/h(2) for motorcycles (with or without sidecar and tricycles.

2.2.3. The vehicle is tested both unladen and laden.

2.2.3.1. Braking with the combined braking system only

Category	Stopping distance (S)(in m)	Corresponding mean developed deceleration(in m/s2)
Mopeds	S ≤ 0,1.V + V2/115	4,4
Two-wheel motorcycles	S ≤ 0,1.V + V2/132	5,1
Motorcycles with sidecar	S ≤ 0,1.V + V2/140	5,4
Tricycles	S ≤ 0,1.V + V2/130	5,0

2.2.3.2. Braking with the second service or the secondary (emergency) braking device, all categories

The stopping distance is:

S ≤ 0,1.V + V²/65

(corresponding mean fully developed deceleration 2,5 m/s²).

2.3. Braking performance with the parking braking device (if applicable)

2.3.1. The parking braking device must, even if it is combined with one of the other braking devices, be capable of holding the laden vehicle stationary on an 18 % up or down gradient.

2.4. Provisions relating to forces applied to brake controls

2.4.1. Forces applied to service brake controls

hand control

≤ 200 N

foot control

≤ 350 N (mopeds and motorcycles (with or without sidecar))

foot control

≤ 500 N (tricycles).

2.4.2. Forces applied ot the parking brake control (if applicable)

with manual control

≤ 400 N

with foot control

≤ 500 N.

2.4.3. In the case of handbrake levers, the point of application of the manual force is assumed to be 50 mm from the outer end of the lever.

2.5. Performance levels (minimum and maximum) to be attained with wet brakes

2.5.1. The mean deceleration to be attained with wet brake(s) between 0,5 and 1,0 second after application of the brake must be at least 60 %(3) of that attained with dry brake(s) during the same time period and with the same control force applied.

2.5.2. The control force used, which must be applied as quickly as possible, must be equivalent to that required to attain a mean deceleration of 2,5 m/s² with dry brake(s).

2.5.3. At no time during the type-0 test with wet brake(s) may the deceleration exceed 120 % of that attained with dry brake(s).

(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.

(2)

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) must be tested at a speed equal to 0,9 Vmax.

(3)

For mopeds with a maximum speed of 25 km/h or lawer this value is 40 %.