Motorcycle clamping: what are the regulations?

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Motorcycle clamping is a technical manipulation imposed by law that aims to regulate the speed of the vehicle, depending on its power, but also on the experience of the rider. In fact, only a holder of the A license can drive a large engine. Young drivers, who have just obtained an A2 license, can only ride on motorcycles of high horsepower.

not exceeding 35 kW and which the power / weight ratio is less than 0.2 kW / kg. Thus, a young motorcycle licensed will necessarily be restricted to 35 kW.

Motorcycle clamping: what are the regulations?

Bridle a motorcycle for what to do ?

Concretely, restraining a motorcycle consists in hampering its engine so that it does not deliver all its power. The flanges will limit the speed. They are located in the engine, and for some models, in the muffler.

For example, a 50cc flanged can reach 45 km / h, while without its hindrances, it can exceed 70 km / h. The clamping of a two-wheeler takes place in two major cases.

The AM license

The road safety certificate (BSR), which corresponds to the AM category of the driving license, allows you to drive, from the age of 14, light two-wheelers, namely a moped with a maximum speed not exceeding 45 km / h and equipped with an engine with a maximum displacement of 50 cc if it is spark-ignition internal combustion (or with a maximum net power not exceeding 4 kilowatts for other types of engine).

A2 license

The new motorcycle license regulations give access to greater power in progressive stages. Thus, A2 license holders can only drive two-wheelers limited to 47.5 horsepower..

These motorcycles must not come from a flanged model developing more than 70kW of origin. Before the new regulations, motorcycles were restricted to 25 kW or 34 HP.

How is a motorcycle restrained ?

Regardless of the type of two-wheeler (motorcycles, quadricycles, tricycles, etc.), the clamping must be carried out by an approved professional. If you buy a used motorcycle, you will have to invest in a clamping kit and have it fitted by a dealer.

It will then provide you with a clamping certificate which will have to be kept in order to obtain the gray card of the motorcycle in the MTT1 category. If you buy a new model, be aware that some brands like Suzuki or Yamaha sell their models for beginners who are already restrained..

The clamping can be mechanical, in particular for old motorcycles without injection; or electronic for newer machines. Flange systems vary by brand and model. The cost of the clamping kits therefore also vary.

Do not hesitate to request quotes from several professionals. For example, a 1999 CB 500 requires changing the carburetor plugs, while an injection SV650 requires only the disconnection of one wire..

After the legal lapse of time – two years for an A2 license – it is therefore possible to unleash your motorcycle. The process is the same and must always be carried out by a professional who will provide a certificate of unlocking to register his two-wheeler in the MTT2 category..

What do the regulations say about restraining a motorcycle ?

As a reminder, in order to drive a vehicle restricted to 50 cm3, the driver must be 14 years old and have his BSR. As a beginner, he does not have access to a more powerful model until he is 16 years old.

From the age of 16, the A1 license allows you to own a motorcycle restricted to 125 cm3. The code is mandatory and a practical test (stage and circulation) results in training of at least 20 hours.

At the age of 18, it is possible to obtain a category A2 license which gives the right to drive a motorcycle not exceeding 35 kW. To drive larger engines, it is mandatory to first pass the A2 license, have two years of practice, then follow additional practical and theoretical training of 7 hours.

Removal of the clamping of a motorcycle over 106 horsepower

The decree on the unlocking of motorcycles of April 2016 modifies French law by authorizing the circulation on public roads of vehicles of more than 100 horsepower. Unclamping motorcycles is authorized for new motorcycles and those already in circulation, provided they are equipped with ABS, the anti-lock system for the wheels.

As a reminder, wild jailbreaking is strictly prohibited. The fact of using an unbridled moped on public roads is punishable by a 4th class fine, i.e. a fixed fine of 135 euros, according to article L. 317-23-1 of the Highway Code.

In the event of an accident, the insurance is entitled to refuse to compensate the insured and cancel the contract. To recognize an unbridled moped, the easiest way is to go to a motorized two-wheeler dealer and request a certificate of conformity..

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