I used to take the dogs out with the leashes in my left hand do about 4miles on the bike but the big dog had me off the bike when he spotted a cat. so i purchased a trixie biker set deluxe for about 20 quid . its brilliant because it
leaves your hands free .it bolts onto the bike frame with a bar and large spring so if the dog pulls, the spring takes all the pressure and you dont have to worry about landing on your ass, i would recommend them