
Looking for a pump to carry on my fatty for the “incase shit happens” scenerio
I’ve been a lucky biker and have only had to change two or three tires, on the trail, in over a dozen years, but now that I have a fat bike I’m just re-asking questions
I’ve had the same frame pump on my Surly Cross Check for years and am looking for something that might not take me 5 minutes to pump a tire to capacity on my new fatty. I was potentially looking at Fumpa pumps as a potential, but wanted to ask all y’all. So, what are you keeping in your frame bag to make sure if you need to put a new tube in your fatty that you won’t die from exhaustion while filling.
additional info: Minnesota winter
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EDIT: Follow-up – I ended up going with [Lezyne Micro Floor Drive HV](https://ride.lezyne.com/products/1-mp-mfdr-v204hv)
by ZombieJetPilot
12 Comments
Specialized Air Tool Big Bore pump. Fairly light weight and has an extension hose to connect to the stem which reduces the chance of damaging something.
Lezyne micro floor drive HV.
For fat you’ll def want the High Volume(HV) vs High Pressure (HP). I have two and move them betwee bikes including a Beargrease in MN winters.
Have used it in races and group rides and most of the time I’m helping someone asks what model it is.
I’ve tested a ton of pumps and stand by the oneup EDC 100cc as the best high volume pump I’ve found.
It will still be awful to fill such a high volume tire… (I don’t carry a spare, I just walk out if I flat). But it would suck less with a good high volume pump.
If its seriously cold out, im not fudging around with a pump at all. Im going straight for my Co2, especially during races. Theres nothing more I hate than my hands and feet getting cold and if I have to get off the bike and use a hand pump for more than a couple of minutes, Ill already start to get cold and miserable. (I have poor circulation to my feet and hands to begin with)
I typically with only use a pump if its above 10° and really I never have to because I always bring my floor pumps with me and check tire pressure before I head out to the trails.
To each their own! If I was more eco focused instead of “fun” focused, a lezyne HV pump I found works great.
Leyzyne Micro Floor Drive XL. It’s huge, but will inflate a 27.5×4.5 in no time. Like a few dozen pumps bs handful of pumps. Usually just carry it in my CamelBak, although I might get a frame bag this year.
OneUp 100cc Pump with integrated tool & repair kit. It pushes enough volume for my fat tire and is light enough I don’t notice in my pack or frame bag. Solid construction too.
Topeak mountain morph. It’s cheap, moves a lot of air, and is ergonomicly pleasing to me.
I got a Specialized Air Tool Big Bore and it works great. It comes with a mount but I just put mine in a bar bag. Much easier to go up a few PSI than what I was expecting. I overshot by about 4 PSI when I first used it to up my tire pressure a bit.
Since you’re up north, I think the electrics might not be a good option. Cold can be rough on batteries. That’s why I stuck with a manual pump over the battery operated ones.
Honestly I just carry one of the cheapest Lezyne hand pumps out there. Either the Sport or the HP Drive? At any rate, I can run a Jumbo Jim up to about 12psi in like 200 strokes, lol. Which is good enough since I only have to do it once every year or two and the rest of the time it just hunkers down alongside my water bottle cage and causes no muss and no fuss.
EDIT: I will say that someone tried to “air down” their front shock by manually releasing pressure (yes, I know) and also used this pump to pump it back up to a working pressure again too, so it seems like it can go into the 100psi range pretty easily too.
I have a Lezyne Micro Floor Drive HV and a Lezyne Pocket Drive HV. I used the pocket drive until I finished my frame bag, it works well enough for changing pressure a couple of psi but I wouldn’t want to change a flat with it. Now the floor drive is tucked into my frame bag and it’s about the right balance between size (not taking up too much space) and inflation ability.
Bontrager Air Rush Elite CO2 Inflator with a 25 gram co2 cartridge.
I’m set up tubeless so hoping the hole gets plugged by sealant and I can blast it with co2 a couple times if it starts getting low again.
Note that using co2 usually means replacing the sealant inside – don’t know the science but the sealant usually starts to dry out after co2.
This is where I am at now and am loving it for the fat bike!
[Fanttik Pump](https://youtu.be/9wlDbTha6PI?si=sZ2v5H2FVCk9FcJA)