Directive 97/24/EC of the European Parliament and of the Council (repealed)Show full title

CHAPTER 7

ANTI-TAMPERING MEASURES FOR TWO-WHEEL MOPEDS AND MOTORCYCLES

ANNEX

1. DEFINITIONS U.K.

or the purposes of this Chapter:

1.1. ‘Anti-tampering measures for two-wheel mopeds and motorcycles’ means a series of technical requirements and specifications the aim of which is to prevent, as far as possible, unauthorized modifications which may prejudice safety, in particular by increasing vehicle performance, and damage the environment. U.K.

1.2. ‘Vehicle performance’ means the maximum speed of mopeds and the engine power of motorcycles. U.K.

1.3. ‘Vehicle categories’ means vehicles subdivided into the following categories: U.K.

1.3.1. Category A vehicles — mopeds. U.K.

1.3.2. Category B vehicles — motorcycles with a cylinder capacity not exceeding 125 cc and a power not exceeding 11 kW. U.K.

1.3.3. Category C vehicles — motorcycles with a power not exceeding 25 kW and a power/mass ratio not exceeding 0,16 kW/kg, mass in running order as defined in section 2 of Note (d) in Annex II to Directive 92/61/EEC. U.K.

1.3.4. Category D vehicles — motorcycles other than those in categories B or C. U.K.

1.4. ‘Unauthorized modification’ means a modification which is not permitted by this Chapter. U.K.

1.5. ‘Interchangeability of parts’ means the interchangeability of parts which are not identical. U.K.

1.6. ‘Inlet conduit’ means the combination of the inlet passage and the intake pipe. U.K.

1.7. ‘Inlet passage’ means the passage for the intake of air within the cylinder, cylinder-head or crankcase. U.K.

1.8. ‘Intake pipe’ means a part connecting the carburettor or air-control system and the cylinder, cylinder-head or crankcase. U.K.

1.9. ‘Intake system’: means the combination of the inlet conduit and the intake silencer. U.K.

[F1 1.10. ‘ Exhaust system ’ means the combination of the exhaust pipe, the expansion box, the exhaust silencer and the catalytic converter (if any).] U.K.

Textual Amendments

F1 Substituted by Commission Directive 2005/30/EC of 22 April 2005 amending, for the purposes of their adaptation to technical progress, Directives 97/24/EC and 2002/24/EC of the European Parliament and of the Council, relating to the type-approval of two or three-wheel motor vehicles (Text with EEA relevance).

1.11. ‘Special tools’ means tools which are made available only to distributors authorized by the vehicle manufacturer and are not available to the general public. U.K.

2. GENERAL PROVISIONS U.K.

2.1. Interchangeability of non-identical parts between component-type-approved vehicles: U.K.

2.1.1. For any vehicle in categories A or B, the interchangeability of the following components or of a set of the following components: U.K.

(a)

for two-stroke vehicles: cylinder/piston combination, carburettor, intake pipe, exhaust system,

(b)

for four-stroke vehicles: cylinder head, camshaft, cylinder/piston combination, carburettor, intake pipe, exhaust system,

between that vehicle and any other vehicle from the same manufacturer is not permitted if such interchangeability results in the vehicle's maximum design speed increasing by more than 5 km/h in the case of category A vehicles or the vehicle's power increasing by more than 10 % in the case of category B vehicles. In no case may the maximum design speed or the maximum net engine power of the relevant category be exceeded.

In particular, for the low-performance mopeds referred to in the Note in Annex I to Directive 92/61/EEC, the maximum design speed is 25 km/h.

2.1.1.1. For any vehicle in Category B, of which variants exist pursuant to Article 2 of Directive 92/61/EEC which differ in respect of maximum speed or maximum net power as a result of additional restrictions imposed by Member States under Article 3 (5) of Council Directive 91/439/EEC of 29 July 1991 on driving licences(1), the requirements of 2.1.1(a) and (b) do not apply to the interchangeability of components unless this results in the vehicle's power exceeding 11 kW. U.K.

2.1.2. In cases involving the interchangeability of components, the manufacturer must ensure that the competent authorities are provided with the necessary information and, where appropriate, the necessary vehicles to enable them to verify that the requirements of this section have been met. U.K.

2.2. The manufacturer must declare that modifications of the following characteristics will not increase the maximum power of a motorcycle by more than 10 % or increase the maximum speed of a moped by more than 5 km/h and that in no case may the maximum design speed or the maximum net engine power for the category concerned be exceeded: ignition (advance, etc.), fuel feed system. U.K.

2.3. Category B motorcycles must comply with the requirements of either 2.3.1 or 2.3.2 or 2.3.3 and with 2.3.4 and 2.3.5. U.K.

2.3.1. An unremovable sleeve must be located in the inlet conduit. If such a sleeve is located in the intake pipe, the latter must be fixed to the engine block by means of shear-bolts or bolts removable only using special tools. U.K.

The sleeve must have minimum hardness of 60 HRC. In the restricted section it must not exceed 4 mm in thickness.

Any interference with the sleeve aimed at removing or modifying it must lead to either the destruction of the sleeve and its support or complete and permanent malfunctioning of the engine until it is restored to its approved condition.

A marking with indication of the vehicle category or categories as defined in 1.3 must be legible on the surface of the sleeve or not far from it.

2.3.2. Each intake pipe must be fixed with shear-bolts or bolts removable only using special tools. A restricted section, indicated on the outside, must be located inside the pipes; at that point the wall must be less than 4 mm in thickness, or 5 mm if using a flexible material, such as rubber for example. U.K.

Any interference with the pipes aimed at modifying the restricted section must lead to either the destruction of the pipes or complete and permanent malfunctioning of the engine until they are restored to their approved condition.

A marking with indication of the vehicle category or categories as defined in 1.3 must be legible on the pipes.

2.3.3. The part of the inlet conduit located in the cylinder head must have a restricted section. In the whole inlet passage there must not be a more restricted section (except the valve-seat section). U.K.

Any interference with the conduit aimed at modifying the restricted section must lead to either the destruction of the pipe or complete and permanent malfunctioning of the engine until it is restored to its approved condition.

A marking with indication of the vehicle category as defined in 1.3 must be legible on the cylinder head.

2.3.4. The diameter of the restricted section referred to in sections 2.3.1, 2.3.2 and 2.3.3 varies according to the motorcycle concerned. U.K.

2.3.5. The manufacturer must supply the diameter of the restricted section and prove to the competent authorities that this restricted section is the most critical for the passage of gases, and that there is no other section which, if modified, could increase vehicle performance by more than 10 %. U.K.

Four years after this Directive is implemented, the maximum diameters of the restricted section for the various types of motorcycles must be determined numerically following the procedure set out in Article 6 on the basis of the diameters of the restricted sections supplied by the manufacturer.

2.4. Removing the air filter must not have the effect of increasing a moped's maximum design speed by more than 10 %. U.K.

3. SPECIFIC REQUIREMENTS FOR VEHICLES IN CATEGORIES A AND B U.K.

The requirements in this section are not mandatory unless a single requirement or combination of requirements proves necessary to impede tampering resulting in the vehicle's maximum design speed increasing by more than 5 km/h in the case of category A vehicles or the vehicle's power increasing by more than 10 % in the case of category B vehicles. In no case may the maximum design speed or maximum net engine power of the relevant category be exceeded.

3.1. Cylinder-head gasket: after mounting, the maximum thickness of a cylinder-head gasket, if any, may not exceed U.K.

• 1,3 mm for mopeds, and

• 1,6 mm for motorcycles.

3.2. Cylinder/crankcase gasket for two-stroke engines: the maximum thickness of any gasket between the base of the cylinder and the crankcase, if any, may not exceed 0,5 mm, after mounting. U.K.

3.3. Piston for two-stroke engines: the piston, when in position at top dead centre, must not cover the inlet port. This requirement does not apply to those parts of the transfer port which coincide with the inlet port in the case of vehicles the engine of which is equipped with an induction system incorporating reed valve(s). U.K.

3.4. For two-stroke engines, rotation of the piston through 180^o must not increase engine performance. U.K.

3.5. Without prejudice to the provisions of 2.3, no artificial restriction is permitted in the exhaust system. The valve guides of a four-stroke engine are not considered to be artificial restrictions. U.K.

3.6. The part(s) of the exhaust system inside the silencer(s) which determine(s) the effective length of the exhaust pipe must be affixed to the silencer(s) or expansion box(es) in such a way that it (they) cannot be removed. U.K.

3.7. Any component (mechanical, electrical, structural, etc.) which limits full engine load (e.g. a throttle control stop or a twist-grip stop) is forbidden. U.K.

3.8. If a category A vehicle is equipped with electrical/electronic devices which limit its speed, the vehicle manufacturer must provide data and evidence to the test authorities to demonstrate that modification or disconnection of the device or its wiring system will not increase the moped's maximum speed by more than 10 %. U.K.

Electrical/electronic devices which cut and/or inhibit spark ignition are forbidden if their operation results in an increase in fuel consumption or unburnt hydrocarbon emissions.

Electrical/electronic devices which vary spark advance must be designed in such a way that the engine power, measured with the device functioning, does not differ by more than 10 % from the power measured with the device disconnected and with spark advance set for maximum road speed.

The maximum road speed must be achieved with the spark advance set within ± 5 ^o of the value specified for the development of maximum power.

3.9. Should an engine be equipped with a reed valve, this must be fixed with shear-bolts which prevent re-use of its support or bolts removable only using special tools. U.K.

3.10. Requirements for the identification of a vehicle engine type U.K.

3.10.1. Marking of original parts/components: U.K.

3.10.1.1. The parts components listed below must be durably and indelibly marked with the code number(s) and symbols assigned for identification purposes either by the vehicle manufacturers of such parts or components. Such marking may take the form of a label provided that it remains legible in normal use and cannot be detached without being destroyed. U.K.

In general, this marking must be visible without the necessity of dismantling the part in question or other parts of the vehicle. However, where the bodywork or other parts of the vehicle obscure a marking, the vehicle manufacturer must provide the competent authorities with indications for opening or dismantling the parts in question and the location of the markings.

3.10.1.2. The letters, figures or symbols used must be at least 2,5 mm in height and be easily legible. However, for the marking of parts such as those specified in 3.10.1.3.7 and 3.10.1.3.8, the minimum height must be as specified in Chapter 9. U.K.

3.10.1.3. The parts and components referred to in 3.10.1.1 are the following: U.K.

3.10.1.3.1. intake silencer (air filter) U.K.

3.10.1.3.2. carburettor or equivalent device U.K.

3.10.1.3.3. inlet pipe (if cast separately from the carburettor or cylinder or crankcase) U.K.

3.10.1.3.4. cylinder U.K.

3.10.1.3.5. cylinder head U.K.

3.10.1.3.6. crankcase U.K.

3.10.1.3.7. exhaust pipe(s) (if separate from the silencer) U.K.

[F2 3.10.1.3.7a. catalytic converter(s) (only if not integrated in the silencer)] U.K.

Textual Amendments

F2 Inserted by Commission Directive 2005/30/EC of 22 April 2005 amending, for the purposes of their adaptation to technical progress, Directives 97/24/EC and 2002/24/EC of the European Parliament and of the Council, relating to the type-approval of two or three-wheel motor vehicles (Text with EEA relevance).

3.10.1.3.8. silencer(s) U.K.

3.10.1.3.9. transmission driving part (front chain wheel (sprocket) or pulley) U.K.

3.10.1.3.10. transmission driven part (rear chain wheel (sprocket) or pulley) U.K.

3.10.1.3.11. any electrical/electronic devices for engine management (ignition, injection, etc.) and all the different electronic cards in the case of a device which is designed to be opened U.K.

3.10.1.3.12. restricted section (sleeve or other). U.K.

3.10.2. Anti-tampering control plate U.K.

3.10.2.1. A plate of at least 60 mm × 40 mm must be fixed to each vehicle in a durable manner (it may be adhesive but not detachable without prejudice to its integrity) in an easily accessible place on the vehicle. U.K.

On this plate the manufacturer must indicate:

3.10.2.1.1. his name or trade mark; U.K.

3.10.2.1.2. the letter representing the vehicle category; U.K.

3.10.2.1.3. for the transmission driving and driven parts, the number of cogs (in the case of a sprocket), or the diameter (in mm) in the case of a pulley; U.K.

3.10.2.1.4. the code number(s) or symbol(s) identifying the parts or components marked in accordance with 3.10.1. U.K.

3.10.2.2. Letters, figures or symbols must be at least 2,5 mm in height and be easily legible. A simple drawing showing the correspondence between parts or components and their code numbers or symbols is given in Figure 1. U.K.

3.10.3. Marking of non-original parts/components U.K.

3.10.3.1. In the case of components type-approved for the vehicle in accordance with this Chapter which are alternatives to those listed in 3.10.1.3 and are sold by the vehicle manufacturer, the code number(s) or symbol(s) of such alternatives must be shown either on the control plate or on a sticker (which must remain legible in normal use and which cannot be detached without being destroyed), to be supplied with the component for attachment next to the control plate. U.K.

3.10.3.2. In the case of non-original replacement silencers, the code number(s) or symbol(s) of such separate technical units must be shown on a sticker (which must remain legible in normal use and which cannot be detached without being destroyed), to be supplied with the component for attachment next to the control plate. U.K.

3.10.3.3. When, pursuant to 3.10.3.1 and 3.10.3.2, non-original parts/components have to be marked, the markings must comply with the provisions of 3.10.1.1 to 3.10.2.2. U.K.

Appendix 1

Appendix 2

Textual Amendments

F1 Substituted by Commission Directive 2005/30/EC of 22 April 2005 amending, for the purposes of their adaptation to technical progress, Directives 97/24/EC and 2002/24/EC of the European Parliament and of the Council, relating to the type-approval of two or three-wheel motor vehicles (Text with EEA relevance).

F2 Inserted by Commission Directive 2005/30/EC of 22 April 2005 amending, for the purposes of their adaptation to technical progress, Directives 97/24/EC and 2002/24/EC of the European Parliament and of the Council, relating to the type-approval of two or three-wheel motor vehicles (Text with EEA relevance).

Textual Amendments

F1 Substituted by Commission Directive 2005/30/EC of 22 April 2005 amending, for the purposes of their adaptation to technical progress, Directives 97/24/EC and 2002/24/EC of the European Parliament and of the Council, relating to the type-approval of two or three-wheel motor vehicles (Text with EEA relevance).

F2 Inserted by Commission Directive 2005/30/EC of 22 April 2005 amending, for the purposes of their adaptation to technical progress, Directives 97/24/EC and 2002/24/EC of the European Parliament and of the Council, relating to the type-approval of two or three-wheel motor vehicles (Text with EEA relevance).

(1)

OJ No L 237, 24. 8. 1991, p. 1.