Air only comes out of schrader side when attached to presta valve and locked. Im about to return as defective unless there's something else to do?

Hi! I have to over pump at times because some air escapes, but there should be no need to put the adapter on, just use the presta part for your bike. There is one. Here it is in the picture. It sound like you are taken a step that can be done, but is not needed. It comes with a presta connector, I am pointing to it with my thumb for you. I assure you that it works! But, if you have a bike shop take the pump with you and watch the tech use it, you have to lock it tightly. See what he does, you don’t need your bike, if you want take off your front tire if that is a possibility. It will work, bring it to a pro for a tutorial (:

How do you use the road bike nozzle?

Have no problem as there are choices for different nozzles. I believe there is a YouTube video description.

How do you use the attachments? They don’t seem to fit.

You have to flip the valve release on the back of the head insert and lock down the black lever

Why is the pressure guage reading zero?

I can only say if the valve is connected to the tire or inflatable object you should show the pressure. I have 2 of these pumps and both of them have worked perfect. You may need to exchange it if the pressure gauge is not working.

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🚴‍♂️ Pump Like a Pro, Ride Like a Legend

ERGONOMIC CONTROL - Comfort-grip handle designed for smooth, fatigue-free pumping even on long prep days.
COMPACT POWERHOUSE - Lightweight yet robust design fits seamlessly into your cycling kit for on-the-go inflation without compromise.
ALL IN ONE VERSATILITY - Includes multifunctional adapter, needles, and nozzles to inflate everything from road tires to sports balls effortlessly.
BUILT TO LAST PERFORM - High-strength alloy steel tubes and a wider base deliver unmatched durability and stability during intense rides.
RACE READY PRESSURE PRECISION - Easy-to-read gauge ensures perfect PSI every time, so you never miss a beat on the road.

The GOBKO Bicycle Pump is a high-performance manual floor pump crafted from durable alloy steel, delivering up to 160 PSI with a rapid 1.5 L/s airflow. Featuring a dual-head for Schrader and Presta valves, an ergonomic handle, and a stable wide base, it’s engineered for cyclists demanding precision and reliability. Versatile enough to inflate tires, sports balls, and more, this pump is a must-have for competitive riders and weekend warriors alike.

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Colour	orange
Brand	GOBKO
Material	Alloy Steel
Item Weight	0.85 Kilograms
Product Dimensions	24.1L x 24.1W x 73.7H Centimeters
Power Source	Manual
Air Flow Capacity	1.5 Liters Per Second
Maximum Pressure	170 Pound per Square Inch
Operation Mode	Manual
Manufacturer	GOBKO
UPC	680017183738
Department	ALL
Country of Origin	USA
Item model number	032Y
ASIN	B094TXY2CD

GOBKO Bicycle Pump Air Pump Bicycle French Valves with Pressure Gauge, Air Pump for Road Bike MTB Sports Ball Pump High Pressure 160 Psi and 11 Bar

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