ride hard ride free
Jon D
--
John Durham
This year, I finally replaced my deteriorating Silca Impero with a Zefal
HPR mini and I love it. I'ts lightweight, compact and pumps to whatever
pressure I desire (though it takes a while to get there). The price
wasn't bad, either.
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>>What is your opinion on mini pumps? They look good on the bike but when
>it comes to use them, they are usless. Pump for ever and you never seem
>to get good pressure in the tyre.
I have a Blackburn AS-1 mini-pump on my road bike. So far this year, I
have thrice pumped my tire up to 110psi. Yes, it does take some pumping,
but the pump is able to reach that pressure.
On my mountain bike I have the Blackburn MMP-1 mini-pump. I've pumped
those tires up to 55psi without problems.
I would not be so quick to offer a blanket condemnation of the mini-pumps.
/m
John Durham <Jo...@zenn.demon.co.uk> wrote in article
<h035HDAf...@zenn.demon.co.uk>...
> >What is your opinion on mini pumps? They look good on the bike but
when
> it comes to use them, they are usless. Pump for ever and you never
seem
> to get good pressure in the tyre.
I have a Blackburn Mammoth, and it's excellent. It's almost fast
enough to be my primary pump, and if you can't afford a floor pump
too, this would be the one to get. I've had no trouble pumping
quickly to 65 psi or so, and beyond. I don't think it would be good
for road bike pressures, though.
All the metal bodied Blackburn pumps work well. I can't vouch for
other brands, except to say that you should steer clear of plastic
bodies. They heat up, and then won't hold air pressure. I had a
Zefal Mini Doubleshot that was a useless piece of junk. Stay away
from all pumps of this type.
Another thing is that pumps work better if they're kept clean. Mine
lives inside my Camelback. Strapped on a pack, or kept in a jersey
pocket, is probably next best. If mounted on the bike, the pump will
get very dirty, and may not work the next time you need it. Not only
does dirt get into the barrel and plunger seals, it can clog the head
so that the pump won't hold pressure, or air won't go through.
Matt O.
As for specifics, I've got a Topeak MMB-2 hanging on my bike now. Most
pumps work well. The only things you -need- to look for are a thumblock,
good seals, and a mud cap to keep the muck out of the head. I think
someone already mentioned that problem.
I've had my Mt. Zefal Mini Double Shot almost since they came out. It's been
cliped on the frame of my last 2 mountain bikes and now sits velcroed to my
CamelBak. I use it all the time to put the pressure back up when I know I'm
going into a rim bashing downhill. I've only had to unscrew it and dump the
water out a few times after dunking it in a creek. I never tried the Presta
valve though, I don't know how well that works.
___________________________________________
Chris Phillipo - webm...@tread.pair.com
TREAD Publications - TREAD Online! Cycle Magazine. <09-08-97>
http://www.tread.pair.com/ - http://www.tread.pair.com/bikemag/
Paul
Email - p...@sfsu.edu
Web - http://userwww.sfsu.edu/~pdg/
"The inherent problem with this technology is that a single
pair of eyes focuses on a single screen, and by some electronic
extension, you are connected to somebody else--but it's in the
abstract. The danger is that we become enamored with the
abstract and forget that life is really touchy-feely."
-- William Shatner
> Hmm... What about the CO2 cartridge pumps? Are they better? How many
> times can one use a single cartridge?
I think they are single-use, which would make them not very economical.
Brandon
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>I have a Blackburn Mammoth, and it's excellent. It's almost fast
i have thought of getting a mammoth pump b4 but i noted that it did
not have a cap for the hole. the handle body junction is not sealed so
dirt can get in. its funny that blackburn have a great mounting
device for the frame and dont provide such a cap as bulk dirt gets in
a really stuffs things up.
>All the metal bodied Blackburn pumps work well. I can't vouch for
>other brands, except to say that you should steer clear of plastic
>bodies. They heat up, and then won't hold air pressure. I had a
>Zefal Mini Doubleshot that was a useless piece of junk. Stay away
>from all pumps of this type.
i have been using zefals mounted on the frame becase they have a great
cap and are light because of the plastic body. The handle covers the
pump body well and keeps the dirt out. they are good enought to get
you out of trouble. the body does wear and i have had to replace mine
every bout every 18 months.
>Another thing is that pumps work better if they're kept clean. Mine
>lives inside my Camelback. Strapped on a pack, or kept in a jersey
>pocket, is probably next best. If mounted on the bike, the pump will
i too worried bout mounting anything solid to my back. i have already
broken a set of glasses and seen a mobile phone cracked. a pump into
my back will not do me any good. cant see how to fit one inside my
camelbak cause when mine is full there is no extra room inside. also
the cbak wants to bend with the curve of your spine and a pump is
straight; does not add up.
i wish zefal made a double shot al body pump like their road one which
is just the bees knees!
Allen Chong
Perth, Australia
>i have thought of getting a mammoth pump b4 but i noted that it did
>not have a cap for the hole. the handle body junction is not sealed so
>dirt can get in. its funny that blackburn have a great mounting
>device for the frame and dont provide such a cap as bulk dirt gets in
>a really stuffs things up.
>
But how often do you have a problem with dirt screwing things up? My pump
never gets that dirty. Dusty, maybe, but not really downright *dirty*.
jn
>
>>I have a Blackburn Mammoth, and it's excellent. It's almost fast
>
>i have thought of getting a mammoth pump b4 but i noted that it did
>not have a cap for the hole. the handle body junction is not sealed so
>dirt can get in. its funny that blackburn have a great mounting
>device for the frame and dont provide such a cap as bulk dirt gets in
>a really stuffs things up.
My Blackburn Mammoth Mountain Pump (MMP-1) has a cap, as does the Blackburn
AS-1 on my road bike.
/m
> >bodies. They heat up, and then won't hold air pressure. I had a
> >Zefal Mini Doubleshot that was a useless piece of junk. Stay away
> >from all pumps of this type.
>
I use a Zefal Mini Doubleshot with a metal body and I think
it works well. (I'm on my second one - they don't work well
forever). I think the metal body is much better than the
plastic ones.
Brad.
Nicolai Michel
nico...@bigfoot.com
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