NEUROSPORT

I have tried Topeak Road Morph G, Lezyne Micro Floor Drive HPG and Lezyne Road Drive.

Road Drive won.

Micro HPG had marginally better performance but nearly twice the weight and nowhere near the looks of the Road Drive.

Topeak is really just a sad, SAD joke compared to lezyne.

Now i don't really care about the saving of 17 grams - AT ALL.

Also styling wise - the part of my frame where it would go on is exposed brushed aluminum so brushed aluminum one would be a perfect match, more so than Carbon.

And never the less - carbon is carbon. Know what i'm saying ?

Have any of you tried both ? Are there any functional differences ? ( aside from the fact that Carbon is presta only and Aluminum does both ).

My choice is return the Aluminum to the store and order carbon online, or just keep the aluminum one.

?

SalsaPodio

Neither of them are aero enough.

umd

Stop obsessing and keep the one you got.

Carbon Unit

I am glad to hear an opinion on Lezyne Vs Topeak. I know that you are looking at frame pumps but my Topeak floor pump is dying and I don't know if I want to try to order parts from Topeak, wait a week and try to repair it; or just buy a new Lezyne floor pump.

From what I have seen Topeak makes disposable pumps and Lezyne makes pumps that will last a life time.

NEUROSPORT

don't know about that but its just plain easier to pump a tyre up with lezyne because it has a narrower barrel so it creates higher pressure with less effort.

im talking about frame pumps of course.

also the attachment where you put it on the valve - no comparison. topeak is just garbage.

the most outrageous part about it all is that topeak cost almost the same !

Carbon Unit

This is good to know. I didn't know about Lezyne when I bought my Topeak or I wouldn't have bought it.

MegaTom

Wrong. A narrower tube means less air volume being pumped per stroke. You want higher pressure in the tire, not in the pump.

NEUROSPORT

so genius ... you expect the air to flow into the tire form the pump against the pressure gradient ?

do you also expect your bike to roll uphill and against the wind all by itself ?

or maybe everybody should use a single speed 60/11 gearing that way you cover the most distance per pedal revolution ?

i guess physics is not your forte ...

umd

oh the irony

SalsaPodio

God I love NEUROSPORT threads, especially when terrible physics gets involved.

Electrical Engineer

SalsaPodio

You know umd, I have a feeling we are on the same page here

RJM

Really, just stick your mouth over the valve and blow real hard, its free and very aerodynamic. No mounting required, just make sure you take off the valve cap first.

NEUROSPORT

UMD i forgive you ...

umd

You must be looking in a mirror.

For what it's worth, the long and skinny pumps are low volume/high pressure, and the fat stubby pumps are high volume/low pressure.

This is what Lezyne says:

Who's the idiot?

NEUROSPORT

this may be a good advice, but now i am also thinking maybe everybody who suggested CO2 cartridges were right ?

NEUROSPORT

that's only exactly what i said ...

SalsaPodio

Pressure = Force/Area

That's about all there is to understanding why the higher pressure pumps have smaller hoses.

GP 

You should have bought a Blackburn. They make Lezynes look like little kids toys.

atmdad

WTF,

Get this Crank up your air compressor early in the morning, don't want to waste any energy that you would expend on using a less than efficient floor or frame pump that you could save for your ride. Plus, the early morning compressor noise will remind any sleeping neighbors of your studliness as you prepare for your early morning ride.

NEUROSPORT

ok so CO2 vapor presure at room temperature is 60 ATM which is 900 PSI.

https://www.youtube.com/results?searc...idge+bomb&aq=0

no i think i'll skip CO2 cartridges after all.

atmdad

What does that have to do with the pump discussion?

Personally I would use these if I wanted to make a bomb, gunpowder fuses are unpredictable.

jsmonet

the lezyne nano is out any day now. 20 pumps to 120psi and it's just over palm-sized.

NEUROSPORT

the point is that without the CO2 container it wouldn't be a bomb. it is the strength of container that makes it a bomb. and this strength is needed to contain the 900 psi of vapor pressure.

now if something goes wrong ( like a crash, or a defective container ) i don't want it blowing up on me. otherwise i would rather not bother with pumps. it's a hard choice.

so does anybody have the carbon one ? any stores carry it so i can look at it ?

i think i should just listen to UMD ...

umd

The chance of that happening is nil.

Aside from the weight there is no reason to pick the carbon one. I'm a certifiable weight weenie, and I went with a medium road drive.

That would be wise.

NEUROSPORT

UMD bro i have a question. the documentation says my pump ( road drive large ) is presta only while the pressure drive is reversible and does both. however it looks like the hose on the road drive is the same ? it looks very much reversible.

i sense a conspiracy here. can road drive also do schraeraraerderrer ? i am hesitant to go outside and try to pump up the tires of my car with it ...

maybe they just refuse to admit that it can do mountain bikes because it would take such a long time to do it and people would then write negative reviews - but they still include the compatibility via reversible schlong ?