Shotgun pro seat
Have just returned from first ride with seat. My 4 yo absolutely loved it. I have been riding with my 2 kids since they were 1yo. Prior to this I had a front and back seat although my younger (2yo) has grown out of the front seat which is why I got the Shotgun.
I fit it onto a touring bike which has less clearance than a mountain bike and it fit really well.
It feels really stable and safe.
Easy to install