Topeak joe blow dualie

This clever dual-gauge floor pump was exclusively
designed for low pressure Fat-Bike tires and
moderate pressure MTB tires. A massive oversized
barrel is 1.5 times larger than a standard floor
pump and delivers large air volume to fill oversized
tires quickly. A 30 psi (2 bar) gauge shows precise
low pressure for Fat-Bike tires while the 75 psi (5
bar) gauge shows higher pressures for MTB tires.
An air release button on the TwinHead™ allows for
fine-tuning pressure. - TwinHead™ : 30 psi / 2 bar
75 psi / 5 bar - 1.9 kg / 4.19 lb