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Old 05-11-05, 06:29 PM   #1
allgoo19
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I just tested my pump. How much is the max. pressure and how many strokes take to to get from 0 PSI to the max. Only the real test done by you will apply and exclude the numbers you can find in the catalogs.
I want to know how the other models from other brand names perform. Here's mine.

*Brand, Model
Performance Hurricane MiniMax The link

*Type
Push-down

*Max. pressure
105 PSI, 80 strokes

*Tire size
700x20c

Because it's a push-down type, max. pressure depends largely on the weight of the user. I weigh 140 lbs.

For the record, it takes about 20 strokes to 120 PSI with my floor pump.
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Old 05-11-05, 07:50 PM   #2
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Good idea for an honest thread. I picked up a much smaller pump for my new bike, having a Zefal frame pump on the other. I don't get many flats, but like to be prepared if I do get one on my commute. So when I got the new pump, I decided to see how it would work out while at home. Took front tire off of bike, deflated, and set out to reinflate. I braced the pump head against the floor and started pumping. I would guess I got to 50-60 psi before I tore the valve out of the tube.

I only had one back up tube so I put it in and used the floor pump. I figure with more care it'll get me to work, but haven't retried the experiment since. I hear people on this forum rave about the Topeak road morph all the time, and would probably buy that if I had it to do over.

I'll be curious to see what kind of results get put up here.
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Old 05-11-05, 09:32 PM   #3
djbrod
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I still haven't found the max pressure for my road morph. The gauge isn't too accurate but when I checked the pressure with my Park floor pump's gauge I had it up to 160psi from the topeak. Not sure on the number of strokes. I'll count next time.
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Old 05-11-05, 10:15 PM   #4
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Crank Bro Mini Alloy Pump I can't even get it to 100. My arm is ready to fall off.
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Old 05-12-05, 08:23 AM   #5
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zefal hpx 3 200 strokes to get 60 psi in a 26x1.75(559-47). my arms get tired but my old serfas mini pump only got about 40 psi for 200 strokes and was ALOT harder to use. I dont think its too bad for such a fat tire
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Old 05-12-05, 07:54 PM   #6
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I tell you, this won't make the most exciting thread of the week. I admit it's pretty boring subject but practical. I wish I knew something like this before I bought mine.

Max. pressure also depends on fatigue. I have pushed to 108 PSI before but I started from 100 PSI. Last 20 or 25 strokes get tougher when I start from 0 PSI. But the fatigue is nothing like I get with the hand push type pump I used to have. I would be lucky if I get to more than 50 PSI.

So far I'm pretty happy with the result of my pump. Combination of Max. pressure and number of strokes, a good compromise. I wouldn't like the sound of 200 strokes, unless it's a mountain bike tire and I'm mentally prepared for it.

I'm curious to know about those pumps goes up 160 PSI which is achievable only with the small barrel pump and push down type like Topeak Morph, how many strokes to get there? djbrod, I'll wait for your result.
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Old 05-12-05, 08:17 PM   #7
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Quote:
I wouldn't like the sound of 200 strokes, unless it's a mountain bike tire and I'm mentally prepared for it.
its definatly mtn bike sized. 200 strokes on a skinny rodie tire would suck!. same pump on a 700x28 pasela is around 75 -100 strokes.its been a long time since I have had to do it so I dont remember exactly. plus I'm a big fella and it doesnt seem to really get hard to push,just tired from the repeteition
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Old 05-12-05, 10:25 PM   #8
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Quote:
Originally Posted by Hemlock
Good idea for an honest thread. I picked up a much smaller pump for my new bike, having a Zefal frame pump on the other. I don't get many flats, but like to be prepared if I do get one on my commute. So when I got the new pump, I decided to see how it would work out while at home. Took front tire off of bike, deflated, and set out to reinflate. I braced the pump head against the floor and started pumping. I would guess I got to 50-60 psi before I tore the valve out of the tube.

I only had one back up tube so I put it in and used the floor pump. I figure with more care it'll get me to work, but haven't retried the experiment since. I hear people on this forum rave about the Topeak road morph all the time, and would probably buy that if I had it to do over.

I'll be curious to see what kind of results get put up here.
Hemlock, it took me a few times of reading to really understand what you did. You laid the wheel flat on the floor, then use the pump vertically as you pump towards the floor? I guess you were pushing against the valve stem instead of the floor, am I correct? If so, you can try a piece of wood block or something under the pump to relief the stress against the valve stem. If your tire doesn't require high pressure like over 90 PSI, your current pump may work good enough. I didn't even think of using my hand push pump in that way when I had it.

But I still think pump like Topeak Morph is better, because you don't have to take the wheel off and lay it flat to pump vertically.
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