TopeakMountain DA G Bike Pump

I like having it kept right on my frame, saves space in my pack. It is the fasted mini pump I’ve ever used for trail side repairs. Light and looks good too.

The double action is brilliant. Good job engineer! I am a 30 plus year everyday commuter cyclist. Would recommend for any cyclist. Light weight, compact, and functional.

Works well I just wish it was a little more compact. That’s the only reason it gets 4 and not 5 stars.

I bought this model because it was listed as having a built in gauge. It doesn’t. If you look at the photos at the top you’ll see no gauge but if you look down the page they show one. I had it too long before I said to myself “I thought I bought a pump with a built in gauge” and looked to see I’d been scammed. By that point it was too late to return. Also, the protective rubber piece that goes into the pump never stays in, letting dirt and gravel into the pump. The only redeeming quality is the mount for your bike is nicer than others I’ve seen. But if you want a quality pump with a gauge, pass on this one.

Easy to use once you know how to use it. I had a difficult time inflating my tire but I was mistaken on how to use it. I had the tire stem valve locking lever in the upright position initially. Was unable to lock it onto the stem. After placing the lever in the down position, I was able to properly seat the valve onto the tire stem. Pulling up the lever locked it onto the stem which made pumping in the air easy. However, inflating the tire pressure from 35 to 50 pounds psi became more difficult but this is to be expected. There are no gears or levers to provide a mechanical advantage since this is a compact bicycle tire pump. I used my body weight to push in and pull out on the handle and with some patience and a little effort, I was able to inflate my tires to 50 psi. Hope this helps. Also happy with the clearance from the pedal arm (see pics). This is a side mount system which allows room for an extra water bottle. I placed mine adjacent to the pedal but there is plenty of clearance. BTW, the PSI gauge appears fairly accurate. This is now a critical piece of equipment for me to carry anytime I am on the roads or trails. Won’t leave home without it!

I really like this pump, but I don't use it for a bicycle. Instead I use it for my Suzuki DRZ 400. If I ride off road , especially in deep sand my Bike handles much better with low tire pressure, of course it is a bad idea to ride a motorcycle fast o the street with real low tire pressure. The Topeak Mountain DA pum solves the dilema. I can drop tire pressure when I hit the trails and pump it back up when I go back on the street. It's really small and light, always works and I usually only pump up my tires to 25 psi when I get back on the road. This pump meets all my needs.

I have never needed to use the bike pump, I purchased it in December 2022. I was curious what would happen if I had to use it: I took the air out of my 32mm tires and the highest I could reach was 20 psi. The gauge is 60 psi, so it is not designed for road tires. On the positive side, the pump locked onto the Presta valve tightly, and the pull handle worked perfectly.

I purchased this to air up/air down my dual sport motorcycle from 24 psi on the road, to 16 psi on the trail. I used it for the first time and was surprised by how quickly I am able to go up/down 8 PSI in full size dual sport tires. No need for anything more than this. Would I want to air up from a flat with it? Probably not, but I think ya could in a pinch and don't feel the need to carry an electric pump if I have this with me. One thing to get use to is where the gauge is located, you need to be intentional with where the stem is if you want to see the air pressure while you use it. Pretty much best to have the stem on the side of the tire facing outwards from the bike. Very happy with this purchase.

Had thought the lever broke but when I screwed the assembly tighter it has worked fine, hence the revision.

Ordered this one because it was supposed to come with a pressure gauge,it did not.Still a good pump, but not as advertised.

Excelente bomba, muy practica y funcional !

Because of its size, you will not be able to inflate road tyre anywhere near the PSI required. It will barely inflate to 40-50 PSI, where my tyre requires 120.

This pump does not automatically fit both presta / schrader and requires unscrewing and reversing the rubber grommet and plastic back stop. This procedure is common on small hand pumps but in this case the rubber grommet is so tight you need to carry a set of tweezers or small / sharp object to lever it out. As a pump set up for only one type (i.e. everyone on Schrader valves) it is great and the two-way air is awesome but if you are on Schrader with kids on Presta and want one pump to do both then look elsewhere!