If you get caught, the consequences can be serious. “If your bike goes a little too fast, you’ll lose it”, one of the young road users understands. And that’s right. Or you can get a fine of 290 euros, if it’s your first offense. Almost all vehicles with a throttle are not allowed on the road. If the fat bike has a throttle that allows it to go faster than 6 km/h without pedaling, the bike is illegal.