Just small enough to carry or clip on to the bike and just big enough to pump BIG volume, the PMP-4 dual head mini pump is built like all of Park's tools - solid. All aluminum barrel construction ensures long life and smooth operation. Soft touch grips an
Though rated for 90psi it is nearly impossible to achieve anything over 55psi with this pump. It is also nearly impossible to properly connect the pump to the valve and nearly impossible to remove the pump from the valve without damaging the valve stem. I have destroyed two tubes by using this product. Don't make the same mistake.
