Lezyne  Pocket Drive HV Bike Pump

I have used this pump with my 25mm road tires and presto valves. I get 2-5 flats/year because a lot of dirt roads as well as pavement in western Massachusetts and southern Vermont. This pump has never failed me in over 7 years. Sturdier than the plastic ones I have had previously and fits Easily in my jersey or small seat pack. I often end up inflating for others after they have “technical difficulties” with CO2 cartridges or failures with other pumps. After reviewing the options available at REI, the Lezyne looks best so getting this for my son.

I bought this pump as a lighter alternative portable pump. However, I cannot recommend this pump to anyone using a presta valve for two reasons. First, the pump's air tube threads onto the presta valve itself, so when you finish pumping, release the air pressure, and unscrew the pump, there is a 50ish% chance that the valve tip unscrews as well. You can try to not screw the pump on all the way but then it will leak air above about 30 psi. This leads to the second problem which is that you cannot pump above 60-70 psi on this pump unless you spend at least 10 minutes pumping and have serious arm strength. This also means it is very difficult to properly seat a tire bead so your tire will likely be uneven because you cannot pump it up properly. As I learned first hand, the last thing you want is to encounter these issues after getting a flat on a long day.

To the reviewer who mentioned that the cores kept coming out… that is why they have that black pressure relief button on the hose. Once the pressure is relieved, the core is held in place by the tire pressure and the “grip” of the hand pump’s hose attachment is weakened so it can be removed without removing the core.

Really nice pump. I have been very happy with this pump, it works great for high volume tires. I wouldn't have thought a mini pump would have worked so well. It takes a lot of strokes for fat mtb tires, but effort is easy. BTW, the guy who says it requires an accessory hose that it doesn't come with is wrong. It comes with a reversible hose that goes one way for schrader and the other for presta. I use it on my MTB for daily riding, but I'd tour with it as well.

This pump is smaller than I imagined. I have an older version that's not quite as small, and got this new one for another bike. They both work great!

Incredible Pump. Lezyne the most trustworthy durable product on the market! Highly Recommend!

First off, this pump's ability to drive air quickly up to 25-30PSI is like magic for the size. It comes with a convenient little frame mount for water bottle bosses but I elect to carry it in my tool roll because it's so tiny. Full disclosure, I bought this with yearly dividends and was happy with it despite the one glaring issue every other tubeless user reports: it will rip out threaded valve cores if they're not tightened enough. There are a couple of solutions: 1. When setting up your wheel, ensure that the core is fully, *fully* tight. You will likely need to use a better tool than the valve cap to do so. 2. Use loctite on your core when threading it into your valve stem. 3. My favorite: adapt the threaded end to a compressor chuck and don't bother with the threading at all. Knocking off a star since I deflated my tire by accident while trying to top it off on the road because, yes, I ripped out my valve core.

I've had my Lezyne pump since 2010 and it's holding up nicely. I think the reviewer that says it didn't come with the hose didn't know it's stored inside. Mine is pre the pressure release button and it's never opened up my Presta valve core. I swear by these, simple, reliable pumps!

I have used this pump to replace five flats while on rides - and when removing the pump (its a screw on for presta), the core valve came off with it numerous times. My last time using it, I tried using two different tubes - and it took both core valves out. I tried to pump up each tube at least five times each with it removing the core valve each time - resulting in a five mile walk home. Save yourself some frustration and do not buy this pump.

This pump is so so tiny and light, but because the little tube fits inside the pump, it becomes larger and easy to handle once connected. I also appreciate that the nozzle that connects to your tire is flexible, which is very important if you have a specialized bike with oddly sized tires. Example: brompton, woom kids bike. This will get your tire pumped enough to ride home or to a shop with a larger pump with a gauge. It does exactly what I want. I bought one for each of my bikes.