DB Killer motorcycle chicane size 35 to 60 mm

Reduce the NOISE of your exhaust with a Motorcycle Baffle

What is a chicane?

There motorcycle chicane is also called "D B killer", which literally means "decibel killer". This "kills the noise" of the exhaust.

A motorcycle baffle is a product used to reduce exhaust sound. 

This is generally a long perforated tube which extends along the flow path of exhaust gas. The exhaust gases pass through it, where the exhaust noise is attenuated due to the narrowing of the trajectory.

Why install or replace a DB KILLER on a silencer?

The purpose of the baffle is to reduce noise to acceptable limits of decibels which will be comfortable for your ears and those of law enforcement.

From one point of view legal, the decibels produced by a motorcycle must match the original information of the motorcycle. Information available on the registration document and on the vehicle manufacturer's plate. 

In addition, since 2019, new radars latest generations are being tested to penalize motorcyclists for “excessive noise”. A new tax greater than the cost of chicane (DB Killer).

It is the same with certain roads which are now prohibited for certain motorcycles, because they are too noisy...

Does installing a chicane impact the performance of the motorcycle?

Original motorcycle exhausts are equipped with baffles or DB killers to reduce exhaust noise and improve engine efficiency by creating back pressure.

Manufacturers indicate that the use of non-standard exhausts can reduce engine life, so the addition of a motorcycle baffle is recommended to preserve engine performance and longevity.

How to adjust the sound of the DB KILLER motorcycle?

Our exhaust baffles motorcycle have the particularity of having a removable part at the end of the chicane. This removable part allows you to best adjust the sound volume you want to have on your motorcycle.

It should be noted that the two screws BTR type supplied with the chicane screw onto the baffle.

For a motorcycle that tends to vibrate a lot, we recommend adding a lock nut in order to ensure that you do not lose the removable part as well as the motorcycle chicane or the Locktite. 

How to choose a motorcycle chicane?

There motorcycle chicane is available in several diameters : 

• 35mm
• 42mm
• 45mm
• 48mm
• 60mm

And in 2 lengths : 

• Short
• Long

The diameter, expressed in millimeters, represents the outer diameter, this must be less than the inner diameter of your exhaust.

That is to say, if your exhaust has an internal diameter of 36 mm, you must choose the 35 mm model.

For the exhausts For intermediate dimensions, we advise you to use the smaller size. Exhaust gases will no longer be able to escape, but this will still reduce the noise.

That is to say, if your exhaust has an internal diameter of 52 mm, you must choose model 48 mm.

Depending on your exhaust, you can use the long or short model. There is a slight difference in acoustic level. The short one will cut the sound more.

"You can also take a model long and cut it if necessary based on your testing."

Here is a complete article on the subject: "How to choose a motorcycle chicane?"

Features :

1. Color: Gray or Black depending on the version
2. Length: 2 versions: short, long
3. Outer diameter: 35mm, 42mm, 45mm, 48mm, 60mm
4. Thread size: 6mm / M6

Dimensions in picture:

How to install the motorcycle chicane?

There motorcycle chicane installs in the silencer.

You must check the outlet diameter of your exhaust silencer at the place where the baffle will be fixed in order to know the diameter that you can choose:

There is a tolerance of 2mm.

So for the 60 mm model is intended for the 58-59-60 mm models.

So on.