12" (actual size 12.5" x 1.75" x 2.25") replacement inner tube with bent valve stem for easy inflation for Mountain Buggy and Phil&Teds buggies.

Mountain Buggy/Phil&Teds advise 20 psi as the highest amount of air pressure to be put in all the wheels at any time. It can be slightly lower but this is the highest maximum pressure. If it's any higher than 20 psi the inner tubes may pop or deflate. Under inflation can lead to problems with pinch flats. This can occur when you hit a bump and your under inflated tyre compresses all the way to the rim. Under inflation can also cause the push to feel more laboured than usual and lead to accelerated tyre wear. To help maintain proper pressure use a manual hand/foot pump with a tyre gauge attached so that you may keep track of how much air pressure you're putting in the tyre. It's recommended to use a hand or bike pump as an air compressor may fill the inner tube too rapidly.