Anonymous wrote:When I put my older than 6 months grandson in the bob ironman and ran with him fully reclined, the seat swung gently back and forth with less vigor than his swing. So...I think that if your stroller reclines fully and also takes the bounce---btw, what are you running on? Sidewalks should actually be just fine anyway---and turns it into a swinging motion, you should be fine. If the kid is only 2 months old, you aren't running very hard anyway.
You dont know how hard she running a 2 months, I ran a 1/2 marathon 9 weeks postpartum. I would never jog or run with a baby under 9m. OP they make the carseat adapter so you can use your jogging stroller as an everyday stroller NOT so that you can jog with an infant.