Works on Presta tires, whereas the Schrader to Presta ...
595867
Works on Presta tires, whereas the Schrader to Presta adapter from the local bike shop would not work with Schrader pressure gauge. i'd say it iss a necessity if you have Presta tires.
4046516
I usually get MEETLOCKS in four packs but in a 25mm width this is the only inner tube I can find with a schrader valve. I run these with&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/FREEDOM-TIRES-THICKSLICK-700x25-RACE-FOLDING-BEAD-with-RED-LETTERS/dp/B00JL4CQBW/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">FREEDOM TIRES THICKSLICK 700x25 RACE FOLDING BEAD with RED LETTERS</a>. Nothing else special about the tube ... it works.
3889218
All the tires I fill have Schrader valves, so I can not offer a review of the utility on Presta valves.  I also have not needed to use the patch kits which came with the pump, but presumably they will be adequate.  The patch kits are adhesive-backed and pretty self explanatory: locate hole, place sticker.

I purchased this product for a few very specific uses, in this priority:

1. Fill up our bicycle tires (80 psi)
2. Fill up toddler's bike trailer tires (40 psi)
3. Top off car tires once a month or so (32 psi)

The pump performed adequately in all three above applications, so I'm giving this product 4 stars.  I was able to pump up to the desired pressure easily.  I think that, physically speaking, pumping will not be the issue most people have.  But people may have an issue putting on and taking off the stem from the valve.  The switch to move from Presta to Schrader has a middle, neutral position, which is used when putting on and taking off the pump from any valve.  It's pretty stiff, so I recommend wearing gloves to help with grip and to protect your hands.  This is especially true if you are going to be removing the stem from a valve in a tight space, like on smaller wheels on a toddler's trailer.  Car tires and bike tires were both pretty simple and swift, provided you have average hand strength.  I had five tires to fill, and it probably took 10 minutes total.

My only other issue is that precision is difficult to achieve.  The gauge is easy to read, but it's not going to have the precision of a digital readout, so you might be 1 psi off of your intended target.  I felt the need to over-inflate slightly, because some pressure is lost when removing the stem.  For my uses this is not a significant problem, but if you are filling something that needs a precise measurement I would double-check the pressure afterwards with another gauge that you trust.
3042475
i bought this inflator to air up the tires on my road bike.  you have to buy a presta to schrader valve adapter, which is no big deal.  i usually air up anywhere between 110 -120 and it works well.  it's a little tricky at first, but once you get the hang of it, it airs up fast.  much better than using a floor pump.  i especially like the auto shut off feature.  i wish the air nozzle cord were longer, but for the price, i can't complain.  i have used it to air my car/suv tires as well.  it's not the fastest, but it gets the job done.
1506276
I cut an original presta head and replaced it with this schrader. It comes with no retention clamp and I ended up fashioning one from a hose clamp. Perhaps that's a bit of over kill, but I don't trust this thing not to pop off under high pressure
I used it to inflate several tires and it locked down with no leaks in every case. The construction is flimsy, but it performs well and the low price makes it a bargain.
2883784
It worked well on some wagon tires.  The gauge was very helpful.  I knew from reading some other reviews how to correctly lock the nozzle onto the valve, so I didn't have that problem.  I've only used it on Schrader valves, but so far, so good.
2201526
I used these on tubeless mountain bike wheels. Obviously the valve stem on your rims will need to be drilled for schrader valves (either from the factory or DIY) but since it came with 4 stems I did both my FS bike, and Singlespeed.
They function well as-is, but since bike wheels are thinner, the collar on the outer lock nut was too tall to allow the cap to seat. I took a dremel and a cut-off wheel and in 30 seconds the collar was gone, I ditched the washer, hand tightened the nut down, and there was plenty of room for the cap.

I've run these on two wheelsets for almost 6 months with zero problems.
2918243
This tube has a Presta valve, not a Schrader valve. If you don't know what that last sentence means, then don't buy these tubes. The valve is the part of the tube through which you fill it with air. Previous to buying these tubes the only valves I'd ever encountered while filling any tire (for bikes, cars, carts, tubes, etc.) were what I now know are called Schrader valve. I hadn't really considered a different type of valve so I was surprised to find that the valve sticking out of this tube is different. It's thinner with a screw instead of spring-loaded valve, and no air pump I have ever owned or used fits on it. I bet they are used a lot on wheels that are too thin for a Schrader valve, but it's not clear to me why you would want them for a tire this wide.

In fairness, the title and description of the product states this has a Presta valve. I feel like a bit of an idiot for not noticing before I bought the tube. But I notice that on Amazon's "frequently bought together" list are Presta-to-Schrader valve adaptors, so this is probably a common mistake.

If you really do want a Presta valve, then go ahead and buy these tubes. Other than the valve, I'm happy with the tube's thickness and sealant for resistance to flats.
4121420
This is without a doubt the best bike pump I have ever owned. It never fails and fits both schrader and presta valve stems. My tires are tubular presta and I can't tell you what a nuisance it was fitting on the adapter. Not with this pump. It's almost effortless. Totally built to last. I inflate my tires to 125-130 PSI and it only takes several easy strokes to get there. Topeak makes great products. No nonsense. No cutting corners.
4093687
I bought this pump for my bike, and it works about as I had expected. The pump has a Schrader head (the kind you find on cars and many bikes), but includes a Presta adapter (much thinner--you'll know if you have these valves, often found on road bikes). It also includes a "pin" adapter for things like basketballs and small plastic nozzle-type thing for some inflatables. I have not used these last two adapters, so I cannot vouch for them, but I have used the pump on both Schrader and Presta valves.

The gauge goes up to 120 psi, but the box claims it can only do 100 psi (although the product description here claims 120 as of my writing this). Having used it, I suspect that even 100 psi is a bit generous for the max. Despite this claim, I still have an incredibly difficult time getting above about 70 psi (even when I use both my legs to press, or even my whole body--but be careful since the pump is slightly fragile); it tends to "leak" air out the valve with the pump attached. However, even at lower pressures it becomes increasingly difficult to pump. This probably won't be a problem for balls or mountain bikes, but for higher-pressure tires like road bikes and some hybrids, it might be a lot of work or even impossible to go as high as it claims.

Also, this was my first time using Presta valves, and I had never used a Presta adapter before. Everybody besides me probably knows this, but there are no directions, and I was confused at first. The proper way is to screw the Presta adapter onto the Presta valve first, then attach the pump to *the adapter on the valve* just as if it were a Schrader valve. (I thought the adapter was for the pump. It is easy to attach it to the pump fist but difficult or impossible to then attach it to the valve.) Again, everyone probably knows this, but I thought I'd say it in case it helps out anyone else.

In summary: this pump is OK, but don't expect road-bike-like high pressures with ease. It's easier to pump than a frame/hand pump but less portable (so probably not something you'd take with for emergencies). If you're using a road bike or even a hybrid, you'll probably be better off with a floor pump. I'm sure it's fine for balls and such and probably many mountain bikes, but pumping my hybrid was rarely an easy experience, and I'm sure my road bike would have been impossible--and the manufacturer's claims about pressure are clearly inflated.

EDIT: After having this pump for several months and trying to inflate tires on my hybrid bike, the pump broke. The metal pieces connecting the pedal to the pump are a bit thin, and they are what broke. I suspect it was the high pressure. I want to reiterate that this pump cannot handle high pressures, and I would probably recommend a floor pump instead. Still, this pump may be OK for mountain bikes or low-pressure needs like balls.
1820646
Lite-weight and does as it says it will.  You can inflate presta tubes/tires.  When you unscrew the presta adapter, you can manage the pressure of your front and rear shocks on your mountain bike.  There are 2 settings on the handle; HP and HV.  HP - High Pressure: Use for your suspension.  HV - High Volume: Select to inflate presta valves on tubeless and tubed tires.
3872391
Bought this for a Dixon ZTR 3303 Mower.  It fits on the front tires perfectly.  This is the second one I bought since the stock tires had gone out a long time ago on the mower.  It is a good replacement and provides better traction than the stock tires.
2550355
I use this for mountain biking after some less than stellar results using air shots (compressed air cartridges).  The small size is small enough to fit in an under seat wedge pack, and it will work for presta or schraeder valves.  The pump is very well built and seems durable.  I have not used it for high pressure road tires (100+ psi), but it works just fine for mountain bike pressure levels (30 - 45 psi).
1630265
Presta valve fitting was oversized.  Would not barely fit my CO2 canister and it stuck on my Schrader valve adapter. I actually removed the valve body when attempting to remove the adapter.
3564114
Great pump once you figure out how to convert from Schrader to Presta or vice versa. Comes with picture I guess most folks would figure out quickly, although I"m mechanically inclined and had to contact the seller, ask for help which they could not provide in understandable English. After looking at the "improved" picture the seller sent I finally figured out you have to reverse BOTH nozzle components, not just the outer. My bike came with Presta, but I'm getting adapters so I can use Schrader pumps... I'll leave this little gem set for Presta and on the bike for emergency/occasional use. Honestly that's what I got it for anyhow, to make minor pressure adjustments when riding. I have CO2 cartridges for emergency repair fill-ups, but was able to use this pump to fill a flat front 650b to 20# in about five minutes or several hundred strokes.

Bracket installation on bike was simple and it fits on same holes already used for my side clip drink holder! They can be mounted together which is great since my frame only allows one set of holes.
519202
I don't understand the earlier reviews that complained about the difficulty of locking the pump onto long presta valves.  I have 60mm prestas on my road bike and the end chuck locks on and seals fine.  I can easily pump the tires to 120 psi.  I can't comment on its longevity (I've had it less than a week) but I can certainly testify to its functionality--a very good pump at a very good price.
3818173
The schrader valve works well.  I use it on my car and my mountain bike.  I didn't think the presta valve worked well but it turned out that I was pressing it in deep enough.  Once I learned to push it in deep (and it helps to buy a tube with a long stem) it works great.  It works like a pump should, nothing too fancy.  It is accurate and does the job well.  It does bend and flex a bit so I wouldn't go too nuts with it.