Tag Archives: Alloy Dirt Floor Drive

Lezyne Alloy Dirt Floor Drive Pump Review

Lezyne Alloy Dirt Drive

Lezyne Alloy Dirt Floor Drive Pump Review

Once again, BikeRumor.com has exposed the newest and greatest features among Lezyne’s product line. He highlighted the ABS Flip Chuck and Slip Chuck and demonstrates how well they work with Lezyne’s Alloy Dirt Floor Drive…..unreal.

Lezyne’s Alloy Dirt Floor Drive pump is a tool with a purpose. That purpose?  Seating and inflating tubeless mountain bike tires.  As anyone who’s tried to get a reluctant tubeless mountain bike tire to seat using a floor pump knows, that job can require a lot of air in a small amount of time- more than most floor pumps can deliver.  While a half-decent excuse is all most guys need to run down to Sears for an air compressor, Lezyne’s big-bore Dirt Floor Drive series of pumps are an appealing alternative.  Hit the jump to find out why…

Lezyne Alloy Dirt Drive Floor Pump Review

In order to provide the air volume that tubeless tire seating requires, Lezyne have increased not only the pump barrel’s bore, but also the hose and internals to minimize air flow restrictions.  In practice, this has allowed me to seat all of the true tubeless and most of the tubeless-ready tires I’ve tried.  Why use a pump when, in my case, there’s a perfectly good air compressor really close by?  In short, because the compressor is awfully noisy in my small workshop and, by the time it’s been switched on and reached pressure I could have used the Dirt Floor Drive to seat the tire.  Besides, nobody likes getting kicked out of bed in the middle of the night to turn off an air compressor they’d left on.

Lezyne Alloy Dirt Drive Floor Pump Review

The middle of three Dirt Floor Drive models, the tested $85 Alloy Dirt Floor Drive has a nice wood handle and polished aluminum barrel- a step up from the $75 Classic Dirt Floor Drive’s steel barrel and a step down from the blingtastic $110 CNC Dirt Floor Drive, which has still more machined aluminum hardware and an aluminum handle. For 2012, all three use Lezyne’s presta/Schraeder reversible ABS Flip-Thread Chuck and come with a hose that is long enough to comfortably reach the wheels of bicycles mounted in workstands. The gauge is located at the substantial cast base- not great for legibility, but probably the best choice given its size and heft.  With the large barrel entirely unsuited to road bike use, the gauge only goes up to 70psi, making small pressure differences easy to read.

A big reason that the Lezyne has been so eagerly adopted as part of my workshop is that it’s plain satisfying to use. The polished aluminum makes it look like a serious piece of equipment and the stained wood handle is not only pretty but a pleasure to hold. The height of the pump is just right, allowing average-height adults to manage full strokes without uncomfortable bending- and making shorter pumps feel oddly child-sized by comparison.

Lezyne Alloy Dirt Drive Floor Pump Review<

Back in April’s initial review of the Alloy Dirt Floor Drive pump, I complained about the 2011 Flip-Thread Chuck’s tendency to either thread tubeless valves through their locknut and into the rim and, when removing the chuck, inadvertently removing valve cores (and with them the tire’s contents).  Properly tightening locknuts addresses the first problem and, for 2012, Lezyne’s new Air Bleed System (ABS) chucks address the second.  Now shipping with all Dirt Floor Drive pumps and pictured above, the ABS Flip-Thread Chuck allows the rider to bleed pressure from the pump’s hose after inflation.  This reduces the amount of pressure on the seals and prevents the chuck from unthreading valve cores.  Hooray!

The ABS Flip-Thread Chuck is never going to be the fastest to use (oh! those valuable seconds!), but it makes up for it in simplicity and durability.  The $4 Speed Chuck (pictured below, on the gold Flip Thread Chuck), which is also shipping with new Lezyne pumps, is faster but can be fiddly and leaky in use- so I tend to leave it on the bench.

Lezyne Alloy Dirt Drive Floor Pump Review

At $85, the Alloy Dirt Floor Drive is awfully close to the price of an inexpensive consumer air compressor, which makes it a hard sell on paper.  After working with it for nearly a year, I can speak to its durability- in fact my local shop uses Lezyne pumps on their floor and in their workshop because of the Flip-Thread Chucks’ resistance to sealant fouling.  Unlike an air compressor, the Dirt Floor Drive is  also easy to take to the races- and is miles better than small car-oriented portable air compressors.  When rain means it’s time to switch a 24-hour team’s bikes to mud tires, the Alloy Dirt Floor Drive could almost pay for itself in CO2 cartridges.  Leaving a (nice to have but not essential) tire bleed valve the only thing that I can think to wish for, Lezyne have done a very good job with the updated Alloy Dirt Floor Drive:  it’s a well made tool that does exactly what it’s meant to.  And it looks darn good doing it.

Alloy Dirt Floor Drive Review by BikeRumor.com

Alloy Dirt Floor Drive

Really awesome review of our Alloy Dirt Floor Drive by Tyler over at BikeRumor.com. Thanks Tyler!

When I first ran into Lezyne’s mountain-specific Dirt Floor Drive line of pumps at Interbike last fall, I admittedly didn’t get it. With an oversized barrel (30% larger than the standard Floor Drive) and a gauge topping out at 70psi, the Dirt Floor Drive seemed oddly limited- especially in a road/mountain household. It was only after repeatedly hearing a local shop owner rave about the durability of their shop’s Floor Drive and getting the rest of the story about the Dirt Floor Drive from Lezyne that it started to make sense. Read on to find out why, after two months’ use, I’ve made the mental U-turn to embrace the Dirt Floor Drive- and why my air compressor has largely been sitting silent.

Alloy Dirt Floor Drive Gauge

It turns out that Lezyne have increased not only the Dirt Floor Drive’s barrel volume, but also reworked the rest of the pump’s internals to allow for substantially increased air flow. It’s that combination of increased stroke volume and decreased flow restrictions that allows the three pump Dirt Floor Drive line to effectively seat about 3/4 of the tubeless tires I’ve tried it on. It’s not quite as effective as a small workshop air compressor- but with a bit of effort it sure comes close. And it’s against that of an air compressor that the purchase of a Dirt Floor Drive should be considered.

The Dirt Floor Drive range starts with a $75 steel-barreled version, proceeds to the tested $85 Alloy Dirt Floor Drive, with its wood handle and aluminum barrel, and then on to the blingtastic $110 CNC Dirt Floor Drive with still more machined aluminum hardware and an aluminum handle. All three use Lezyne’s presta/Schraeder reversible thread-on chuck and the hose is long enough to comfortably reach the wheels of bicycles mounted in workstands. The large gauge is located at the substantial cast base- not great for legibility, but probably the best location given its size and heft.

lezyne-Alloy Dirt Floor Drive Chuck

It didn’t take long for me to get in the habit of using the big Lezyne over my air compressor to mount tubeless tires. First, it’s considerably quieter. Second, when time waiting for the compressor to reach pressure is taken into account, it’s almost always faster. Finally, it has a gauge (reducing the need for a second operation). The thread-on chuck is a double-edge sword. Its simplicity is wonderful and leaves far less to go wrong or to be fouled by sealant than do more ‘modern’ designs. Its downside is the possibility of threading tubeless valves into the tire (through their lock rings) when installing the chuck, and the inevitability of removing the occasional valve core (along with all of the tire’s air) when removing the chuck. In order to facilitate trailside valve stem removal and sealant injections, I’d been in the habit leaving both fairly loose but have had to snug things up in order to use the Dirt Floor Drive.  Lezyne’s $10 aftermarket push-on Slip Chuck head should address these complaints, though, and is high on my shopping list.

Alloy Dirt Floor Drive

Another reason that the Lezyne has been so eagerly adopted as part of my workshop is that it’s just satisfying to use. The polished aluminum makes it look like a serious piece of equipment and the stained wood handle is not only pretty but a pleasure to hold. The height of the pump is just right, allowing average-height adults to manage full strokes without uncomfortable bending. The overall impression the Dirt Floor Drive gives is one of solidity and durability.

Along with a push-on head, I would love to see Lezyne equip the Alloy Dirt Floor Drive with a bleed valve of some sort. This would allow tires to be seated at 50 or 60psi, then bled down to the riding pressure. But this is a minor request- none of the pumps I own have one- it’s just that much more noticeable because the thread-on chuck can make the letting small bits of air out a bit fiddly. The $85 price is high, but as it could largely take the place of an air compressor (and is considerably more portable), the Alloy Dirt Floor Drive could be justified on those grounds- anyone changing tubeless tires at a race will love you for bringing one. I’ll be changing and inflating loads more tires as the year goes on and report back if anything interesting