18 x 2.125 Mountain Bike Tyres Off Road MTB kids bicycle x 1
18" x 2.125 Mountain Bike Tyre x 1. Will fit a kids bike or pram/pushchair with a 12 1/2 x 2 1/4" rim. Plenty of thread for grip and durability. Will fit bikes with a 18" rim. Durable High Quality Material.