What do the Euro 4 Rules mean to you?
If you’re considering buying a new motorcycle then you’ve almost certainly heard someone mention ‘Euro 4’ or ‘E4’ to you.
The Euro 4 regulations are mostly concerning the emissions from your scooter or motorcycle and in real term most riders won’t notice the difference between a Euro 3 and Euro 4 motorbike. However there is one big change that riders will notice and that is that all motorcycles and scooters over 125cc must come fitted with ABS (Antilock Braking System) and anything under 125cc will need either ABS or a Combined Breaking System (CBS).
ABS has been around for years and the name says it all really, it is a system that stops the brakes from locking the wheel and causing it to skid.
CBS (sometimes called Linked Braking System) links the front and rear brake together so if you pull just one brake it activates both brakes. The exact way this system works will vary between manufactures but the system will be basically the same across all new bikes.
Lastly a big change as a result of the Euro 4 regulations is the end of 2 stroke engines for most manufacturers. Almost all of the 2018 model bike that have been released have been 4 stroke and a lot of the 2 stroke ranges have been dropped. KTM is standing strong with its 2 strokes for 2018 but there are few other manufacturers doing the same.
In the real world if you go from riding a modern but non Euro 4 motorcycle or scooter and then jump straight onto a new Euro 4 bike then you probably won’t be able to tell the difference.