Sireck Mini Bike Pump - High Pressure 210 PSI Gauge - Fits Schrader and Presta Valve - Double Inlet Portable Bicycle Tire Pump for Road Bike, MTB, BMX, Basketball, Football

This thing is a pain to use. It has textures machined into it that make it difficult to grip. For instance, the sleeve that screws onto the valve stem has spirals cut into it rather than splines so it makes it more difficult to grip with your fingers. The swivel valve for the fill tube leaks if you dont hold it just right and it takes absolutely forever to pump up a tire. It took me half an hour to pump up 2 road bike tires to 85psi, probably took around 6000 pumps. It just doesnt seem to put much air into the tire at all. Ultimately, it works but not well, best go with another brand.

When I got this I tried to pump up a tire. The pressure gauge stayed at 20psi as I pumped so I wasn't really sure it was working. I put it away and forgot about it for a few months. I just tried it again. It doesn't work and I've had it too long to get a refund. In addition, the plastic piece they give you to mount the pump on a bike doesn't fit any bike I've ever seen. Double useless. I'll never buy an Amazon recommended product again. They are always a fail.

Compact size, sturdy aluminum and is not in the way when mounted. The holder bolts beneath the water bottle holder and attaches to the holder via a velcro strap. Had 65 lbs. in the tire and pumped it up to 70 with little effort. The red button is for pressure release. The schrader/presta nozzle is plastic. It screws onto the inner tube nozzle to insure an airtight connection. The nozzle tube is long enough. Functionally it could get a 5 star rating, but it really needs a cover to keep the dirt/grime off it, to protect the gauge window, and to make it less visible so it doesn't disappear because someone else likes it. I'll make a velcro bag to cover it and keep it clean.

I liked the design and it looks great!Was only able to use it once which took forever to fill up a narrow tire 10 PSI, I’m very fit and I was switch arms from getting tires.2nd time trying to use it, it leaks at the rotating elbow, useless...

Did not enjoy this product, not sure if it even worked. hard to put on and take off, confusing and I think it just did not work.

This is really handy to have for any emergency you have while riding your bike. Very small and compact so it’s never in the way. Also great for small things around the house like inflating small balls. Worth buying as it comes very handy.

Apparently the adopter to a bike tube falls out when you ride. Our first time we needed it was a few weeks after installing and it was gone and the pump was useless on the side of the road.

These small pumps are always a compromise and really for emergency use only, however this one will get your tyres up to a decent pressure after a fair few strokes. Can't comment on the durability yet, however appears very well made. And of course it carbon!