Why Buy a Double Running Buggy?
Double-running strollers are the best option to run with your child. Traditional strollers are suitable for daily use. double pushchair are specially designed for jogging, and have large wheels, air-filled tires and often a front lockable wheel to provide suspension.
For jogging infrequently double single pushchair as the Mountain Buggy Duet or Out'n'About Nipper Sport Double V4 will perform. For those who are serious about running, they might prefer the double running pushchairs, like Thule's Thule Cheetah 2.
Safety

Double running buggys have three or four wheels, much like a pram. However they tend to be larger and the front wheel is locked to provide extra control and suspension. Most double running buggy handlebars feature brakes (similar to those on bikes) to enable you to quickly stop your buggy. Some also have wrist straps to ensure security. Some also have a slightly reclined seating to provide extra comfort when your little ones are having a nap or eating. You should wait until your baby is at least nine months old before taking them out for an outing and only after they're comfortable.