Does it work on Presta valves or does it come with an adapter for them?
Have used mine 3 or 4 times now and Iām a big fan over CO2ās, you can finish your ride with the correct amount of tire pressure instead of just whatever seems acceptable when you use C02, mine weighs the same as the 2 co2 and valve I used to carry and can fill at least 3 flats per charge. Iāve had multiple times in the past using CO2ās where the valve wasnāt on right or there was an issue with the presta and Iāve dumped my CO2ās and not inflated the tire enough and thereās much lower risk of something like that with the electronic version where itās monitoring pressure IMO. I just think these are a much better solution, plus the fact that itās a one time purchase. I just charge mine either after use or whenever I charge my Di2 and Assioma and it has always been around 96% still so it doesnāt lose much battery at all when stored, I guess if you went like 6 months or something maybe it would be an issue but even then I bet you would have 1-2 fills on a 60% battery. I was carrying both at first because I wasnāt sure how much I trusted it either but Iām pretty confident in it now having used it a few times, I guess my rides arenāt really a huge risk because I could always call for a ride or worst case Lyft/Uber home if needed, I could see if youāre doing more remote rides maybe having both.
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I share the concern about the battery: When itās years old the battery will get weaker, also I may forget to top it up once. We had a long ride last week with two flats and one additional repump (user error). Also itās one battery moreā¦ there are already too many batteries to think about.
I have a mini hand pump which is cumbersome to use, but has one big plus: It will always work. Always! Also itās smaller than the electric pumps (just a bit ālongā in shape). I have used it so many times, even instead of co2.
Thatās a good use indeed. And a con of the pump which will end in a random pressure (usually too low).
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What if the pump was an ant+ or bluetooth device and could warn you of low battery like axs shfiters or power meters? I think that would be nice. Less anxiety of just keeping it in the saddle bag and charge only when necessary
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The thing with batteries is that they can fail and backup things shouldnāt fail in my opinion. Not that the electric pump will fail exactly in the wrong moment.
I went on a ride last week, Garmin told me after an hour (!) that my left axs shifter battery is critically low. Strange, but ok, I have a backup in the saddle bag. I come home, check with the phone over bluetooth - battery is actually full.
Things like that donāt make it feel reliable enough. Itās rare, but it happens. Batteries have low voltage or are cold, maybe communication issues, whatever.
I seriously donāt want to be stranded in a valley where there are no paved roads and I have to walk 10-15km to the civilization. This never happened, but itās a nightmare of mine.
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Iāve had a CO2 inflator head effectively explode when I tried to use it before. Iāve seen people use their only and rarely but sometimes even 2nd CO2 due without inflating the tire all the way due to some other mishap.
I think itās totally fine for people to keep using CO2 if they prefer it, but in my experience nothing* is 100% fullproof.
*minipump is pretty close, and is what I used to carry for MTB but boy is that a royal PITA when youāre inflating a 2.4ā tire.
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Yeah, with big tires we do a ā100 times me, 100 times youā then we are done in some minutes and our thin arms are still alive. The pump still has to fail me even when I donāt like using it (fiddly adapter).
But back to the topic, sorry. 
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Actually the reason Iām in this topic: I have been thinking about buying one of these pumps and see myself doing it once some friends tell me how great and reliable it is. 
I mean itās a cool gadget.
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I forgot to post here that I bought the Cyclami A2 Plus from AliExpress early this year, and it was essentially dead on arrival. It inflated for about 5 seconds and then shut off. I thought it just needed to be charged, so I left it to charge overnight and the same thing happened the next day. I returned it, and needless to say I will be going with a more reputable brand (like Cycplus) if I decide to get another.
Iām mostly interested in having one for the pre-ride top-off, so I donāt actually need one thatās so small. In fact, a larger unit will be easier to handle than the tiny ones for garage inflation anyway. Mid-ride punctures are extremely rare for me, so Iāll probably stick with the C02 cartridges for most of my rides and throw in a mini pump in addition to those for bigger adventures. I already have enough battery-powered things I need to remember to charge regularly and donāt feel like adding something from my saddle bag to that list anyway.
Itās kool
Buy one even if you donāt use it. Drop it accidentally at the start of a group ride. Good conversation starter.
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If weāre comparing worst case scenarios and looking for failure points, the above isnāt true either. Pumps can and do fail, Iāve heard multiple stories about little used ones not working when finally needed. In fact, the reason I started carrying co2 was when a pump failed when trying to reinflate mine and my partners tyres when arriving back home off a flight due to the gasket melting from excessive heat!
I agree a pump will usually work, but it does need regular checking and maybe preventative maintenance and on super long rides I will always carry some sort of back up - on topic, probably an electric pump in future 
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How many times have we seen riders with dead CO2ās or watch them as they completely screw up inflating a tire with them,leaving them stranded in th4 side of the road / trail?
I still carry CO2ās on the bike vs. a mini-pump, but the concern over a mini-pump failing isnāt even close to being an issue for me.
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I made the plunge. Amazon has the Cycplus AS2 on sale and is half the price of the Pro. Itās to put in my saddle bag, just for emergency, nothing more. I think this will fit the bill. Weāll see.
The Lezyne mini pump I have unscrews valve cores fairly often.
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Yes, works great on presta, has adaptors for all valve types. My wife also loves it as itās easier for her than a track pump and getting the right PSI is simple.
Seems Iām shopping these pumps. I like the idea to use them to top up air on the bikes.
Seems no pump is waterproof. Do you all take a waterproof pouch with you? We get surprised by rain here and there.
Also heat while pumping on TPU tubes may be am issue. Someone has experience with TPU valves?
Based on their use, I couldnāt see any being advertised as waterproof for sure. That being said, while the pro comes with a bag to put the pump in to prevent it from excess rain/sweat, it does seem like would be pretty-ok if not directly rained on or sweated on. Iāll probably use the bag regardless if itās in a jersey, but it does seem pretty robust.
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Mine came with a little baggie that seems to work ok. Has been out on some foul rides with no problems.
I tested mine on some TPU tubes in the garage with no problems. It comes with an extension nozzle doodad that insulates the valve from the main part of the pump.
I have the cyclplus AS2 pro but I gather other pumps offer similar.
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What options have people found for frame mounting these? The internal storage on my speed concept has a spot for co2, same with integrated rear hydration systems like Topeak. I have minimal pockets on my trisuit so it would be nice to see some integrated options for race day.
So I need to buy an electronic pump to go with the CO2 cartridges and the hand pump and the spare tire and the credit card and Ā£10 note for the taxi home 
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