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Lezyne CNC Floor Drive Pump: JUNK

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Discussion starter · #22 ·
crit_boy said:
If you have to learn a special technique to use it and/or buy only certain kinds of presta valves, I ain't buying it.
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Same here - I've had other Lezyne products that were pretty good. That, combined with the design/look (wow... a pretty pump) got me. And yeah, if a pump takes ANY special attention or technique, I've got no use for it. Reminds me of a buddy who plays with Land Rovers "They're great trucks, they need a lot of maintenance and repairs".
 
#24 · (Edited)
When I first got mine I found that it would not inflate the tires on one bike but it was fine with the other. I changed out the tubes on the problem bike and it was fine. I am using Nashbar Vittoria tubes these days and all is fine with those. Anyway maybe try a different tube and see if it's a tube brand valve issue like I experienced or just take the pump back.

They have a new "L" shaped chuck out these days but I have no experience with it. It's a push and 1/4 turn lock type thing. My son-in-law has one but I have not heard if he likes it or not.
 
#28 ·
bvber said:
Is this their house brand?
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No, he just expressed that ambiguously. Vittoria is a huge and old bike tire maker based in Italy, though they make all or most of their tires now in Thailand and elsewhere in the Far East. I guess he meant he bought his from Nashbar. Nashbar has a house brand that uses their own name.
 
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#29 · (Edited)
Have never had trouble with my Floor Drive, I really like it. My only complaint is that the pressure gauge doesn't have a dial with an arrow like the Topeaks.

Stupid question, but when you are screwing the chuck onto the tube valve, are you screwing it on all the way until it won't turn anymore? If not, do that.
 
Discussion starter · #30 ·
jetdog9 said:
Stupid question, but when you are screwing the chuck onto the tube valve, are you screwing it on all the way until it won't turn anymore? If not, do that.
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Nope - not a stupid question. I mean, we're talking about pumping up a tire with a floor pump... the fact that it's difficult has simply GOT to involve some stupidity somewhere.

Yeah, I've threaded it on part way, all the way, all the way but loose, all the way but snug... Then I grab the old cheap pump and flip the old lever and, well, you get the point.
 
#31 ·
Jay Strongbow said:
Probably not very aero though.
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I beg to differ. I have seen tests on Lenzyne's site where they show a 14.7 sec decrease in a 20K time trial with their CNC AL pump. that handle is smooth, tight and aero. It just cuts through the wind.

Suposedly,:D DCRainmakerr.com did a similar test and came up with comparable results.
 
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#32 ·
Been very happy with my Floor Drive for the last year. Unscrew presta valve to full open, tighten 1/4 turn. Screw chuck onto valve stem (10 turns). 1st pump pressurizes, 2nd pump "pops" and I'm off to the races. I will say that the speed chuck really sucked though. Tossed that sucker after like a week.....
 
#34 ·
My 30 year old Silca Track pump (that I bought for $29) still works great. (presta head)
 
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#35 ·
ran a shop that sold literally thousands of lezyne pumps a year. I hated them so much. The number of people that would come back to complain that the pump head has unscrewed their valve cores, or were unable to inflate the tires was high, I would say at least 5-10%. The bike floor shop staff used the lezynes in front of the customers, the downstairs mechanics used old beat up blackburns.

I'm in the same thought pattern, I'll take a 10 year old beaten up cheap off brand pump any day over that horrible lezyne pump head.
 
#36 ·
velodog said:
If the problem is in the pump head, remove the head and replace it with a better design.
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^^^ THIS

My experience is most new dual pump heads simply don't work, especially the presta side. Most complaints about floor pumps have zero to do with the actual pump, and mostly are about the head or gauge.

It's really hard to screw up the pump, even cheap ones work pretty well with a good replacement head. I use a separate gauge, it leaks zero air to use. There was another thread on the best presta replacement pump heads a while ago.
 
#37 ·
I would suggest trying another "flip chuck." Maybe yours is damaged. Does it work with schrader valves and not presta? Maybe you covered that already... The only problems I have had with my floor drive: the o-ring inside the presta side of the chuck was worn down and had to be replaced, and the stock hose (rubber) had to be replaced as the aluminum end with o-ring near the chuck became worn and no longer sealed. They have now re-designed the hoses and the new braided types work wonders better. Mine is about 4 years old now and I use it on average 4 times per week on the bikes and once in a while I use it to pump my shocks up to about 180 psi...
 
Discussion starter · #38 ·
Just a quick update: Four weeks after submitting my inquiry to Lezyne's product support... I've not heard back. Oh, and the pump still sucks. I did manage to air up both tires yesterday (had left my other pump - the old, cheap Hurricane - in a friend's car). The rear took only three attempts - where the pressure shoots up to 200psi 'cause you're inflating the hose and not the tire/tube. The front took five or six attempts. I guess I sold such sh**ty products, I'd avoid my customers too.
 
#39 ·
Agree with you OP. Worst pump I ever owned. It is just sitting in a corner looking pretty.

It is too bad too. Lezyne makes some quality product. I have their hand pumps, maegadrive headlight and multi tools and they are all quality, look good, and work!
 
#40 ·
I purchased a CNC floor drive pump in February of this year and the chuck failed 3 or 4 months ago and now the gauge has failed. It sprung a leak and is not usable at the moment.

I called Lezyne in both cases and they were great at sending replacement parts under warranty, no questions asked. Currently waiting for the new gauge to arrive and figured I could use my back-up Lezyne steel floor drive pump in the meantime. BUT, the chuck on my back-up Lezyne suddenly doesn't seal on the Presta side. The chuck is about 5 years old. Just ordered a replacement chuck from my LBS. Not sure if this is normal wear and tear, or if I should expect a pump to last longer before it needs servicing. The gauge on the older steel drive also needed to be replaced maybe a year ago.

If I need to service both pumps on an ongoing basis, I'll look into another brand.

I may have flat tires for the next week or so. I feel so deflated.
 
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RHankey
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