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Zilch Reinvents the Bike Pump Head for Easiest One-Handed Inflation

Zilch pump use
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Since the invention of the pneumatic bicycle tire, riders have been forced to air up their rides. At this point, there are several different bike pump head designs, but for Fernando Tages, the Founder of Radian USA/Chainlift, there had to be a better way. It’s a classic story, man gets tired of an issue he faces every day, and decides to find a way to fix it.

Tired of struggling with existing pump heads and losing air when removing the chuck from the valve, Fernando decided to put his 30+ years of product design and manufacturing to use and Radian USA came up with Zilch. That is, a pretty interesting bike pump called the Zilch.

It’s worth pointing out that this isn’t Radian USA’s first rodeo. We wrote about the brand in 2020 with their Chainlift device, which is a unique tool to help with bicycle maintenance. Now, with Zilch, Radian USA is poised to reach a lot more consumers with a patented pump design that looks like a home run.

The main goal of Zilch is to make tire inflation easier. Most pump heads either require you to force the valve through a rubber grommet or to use two hands to operate a locking mechanism on the chuck. Zilch uses a one-handed design that goes onto the valve with zero effort.

That’s because until you lock the handle in place, there is nothing to touch the valve. The Zilch head uses a patented auto-locking lever with a diametral seal design with two sides that squeeze onto the (presta) valve. When you’ve inflated the tire, a squeeze of the lever unlocks it, and prevents any air from escaping from the valve. Again, there is nothing touching the valve at this point, so you can effortlessly remove the chuck from the valve–no more struggling to remove the pump, only have it release and jerk your hand into the cassette teeth.

What about Schrader valves? Zilch works with Schrader valves, but you must use one of the included adapters. These adapters thread onto the Schrader valve and can be left in place without air loss. The same is true for Dunlop valves.

Packing a lifetime warranty for the pump head, the Zilch head is also fully user-rebuildable with replaceable parts.

Sold only as part of a complete floor pump or shop inflators, the floor pump has some interesting features as well. A quick docking feature for the pump head ensures that it stays in place on the pump handle and ready to grab at a moment’s notice. The pump handle also has an auto-centering feature to return it to the same position so the pump head dock is always there. A large triangular base helps to prevent tipping, and if it does tip, rubber ends on the handle should prevent damage. The handle also acts as storage for the included adapters for Schrader valves (2x) and a needle inflator.

Currently holding three patents in the U.S. and with multiple patents pending internationally, the Zilch pump head has also been recognized with a 2025 Design and Innovation award.

To get the Zilch off the ground, Radian USA is using Kickstarter and has already surpassed its initial goal of $40,000. With 27 days still to go, currently, you can get in on the Early Bird special with a pump for $95, which is $35 off the $130 MSRP, and with an estimated delivery in July 2025.

radian-usa.com

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19 Comments
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Kyle
Kyle
1 month ago

A solution begging for a problem, much like the chain lift.

DRC
DRC
1 month ago
Reply to  Kyle

I dunno, the pump head on my fancy Bontrager Flash Charger won’t stay on above 65psi, no matter how much I push it on before locking. If this works better, and with one hand, I’m all for it. (my $30 pump from 15 years ago works fine though…)

Jimmy
Jimmy
29 days ago
Reply to  Kyle

Did you feel the need to be the first one to post that comment? This design is actually pretty good and looks like it has addressed a lot of problems that DO exist with pump heads today. Honestly, somebody works on a novel idea that adds value and inevitably the comments section will have someone like you there to disparage it.

reuben
reuben
1 month ago

The analog gauges are pretty useless for MTBs. I’m under 20PSI inflated and looking for 1 psi increments.

Last edited 1 month ago by reuben
Tim
Tim
1 month ago
Reply to  reuben

I’m with you on that one. 160PSI max? Who (other than track) gets anywhere near that anymore? My road bike on 25mm only needs 90 psi, and descending through gravel, MTB, then fat only gets lower, fast. Use a digital gage that is accurate to 0.1PSI from 0-110 PSI, and I’ll be interested.

Robin
Robin
1 month ago

The pressure resolution on that gauge is horrible. Whatever pressure you don’t lose when you remove the pump head is buried in the uncertainty of what pressure you inflate to. The gauge offers a scale resolution of ± 2.5 psi. Then you have to account for uncertainty/error in the gauge itself.

Space Raccoon
Space Raccoon
1 month ago
Reply to  Robin

You don’t lose any pressure when you take the pump head off on any decent pump. The valve disengages before the seal is broken. The air you hear hissing out is just the pump hose etc releasing pressure, not your tire.
If you push the pump back on, you will see a slightly lower pressure. This is because when you re-engage it air rushes from your tire to fill the hose, lowering the total pressure slightly. This only happens when you put the pump back on though, the tire was at the original higher pressure before that, but it can give the illusion that the tire lost pressure earlier.

Robin
Robin
1 month ago
Reply to  Space Raccoon

First, it’s Zilch who’s making the claim re: pressure loss. I merely pointed out that any claimed benefit from their design is bogus given the scale resolution and uncertainty in the gauge accuracy and precision. Second, technically there is a small amount of pressure loss since the valve in the tire does not close instantaneously. The emphasis is on small, as in very small, as in tiny.

Mudmudmud
Mudmudmud
1 month ago

A lot of plastic parts that could break. Give me a brass Silca head any day.

Radian USA
Radian USA
20 days ago
Reply to  Mudmudmud

Silca makes great stuff.

Materials 

Zilch Head
The current Zilch pump head is comprised of mainly injection molded components using several different types engineered resins (plastic). Some with near zero friction properties. Together with all stainless steel fasteners, springs, and a few other internal metal components. 

Here is some supporting information.
1. All materials were chosen purely on producing the best performance and reliability. Cost was secondary. Like most raw materials, quality varies greatly and relies on sourcing from the best established reputable brands like BASF, Convestro, Dow (Delrin), GE (Sabic). Our engineering team has 30+ years in high quality volume manufacturing using the best materials for a specific product.
1. The same proven resins used in the harsh environments of all modern automobile engine components and throughout the remainder of a vehicle (close to 50% of a car by weight). 
2. We preform stress inducing lifecycle testing on all stressed components to find any cyclic fatigue failures.  
3. Metal gives no benefit to most of the components in the head but raises cost significantly. Metal is used only where we deem necessary for best performance and reliability.
Unfortunately many products made of plastic components are not designed or manufactured properly which may give the use of plastic a negative reputation to some.

Hope this helps! 
Cheers!

Conal
Conal
1 month ago

I use a Silca floor pump with aluminium chuck to fit onto presta valves. I use the gauge for road tyres and it’s accurate enough. For my MTB tyres, I check pressure with a digital gauge. If tyres need some extra air, I use the floor pump to increase pressure a few psi and then use the digital gauge to check and bleed to my desired psi. Process takes less time than it did to type this post. 🙂

Sam Langley
Sam Langley
30 days ago
Reply to  Conal

Bah. Even the Silca head takes a hard jerk to get it off (pause) – If this works, I’ll be tossing my silca pump into the garage and keeping this one in the adventure-mobile.

Astro_Kraken
Astro_Kraken
1 month ago

Just sell the head but in metal.

Wacio
Wacio
1 month ago

This connector thing is bigger than my pump.

Last edited 1 month ago by Wacio
Witness
Witness
1 month ago

And one shall rule over them all. The DeWalt 20V do-it-all pump.

c c
c c
1 month ago

1st-world problem solved brilliantly. I will keep my Lezyne with digital gauge, and yes, metal.

Peter
Peter
27 days ago

Most of the problem is also solved by the Schwalbe Clik valve…
The pump-head of clik-valve consists of 5 parts and it is soo nice to use.

B-Man
B-Man
25 days ago

Great initial design, but still a major FAIL, because an adapter is required for Schrader valves.

Radian USA
Radian USA
20 days ago
Reply to  B-Man

In order to bring all the benefits and ease of use of the Zilch head to Schrader valves, the Zilch pump includes a pair of Zilch EZ-Fill Schrader to Presta CONVERTERS that screw on and STAY on each bike tire. You screw it on once by hand on each tire and leave it. This brings all the benefits and ease of use of the Zilch head to all bikes.

AND we listened to many parents about their struggle to fill the tires of their smaller kids bikes. Small wheel bikes don’t have enough room for attaching bike pumps to these small wheels. A person’s hand doesn’t fit in the small space between the spokes and axle. For these small wheel bikes we have an ANGLED Schrader to Presta converter. It stays on each bike wheel and will come in all the popular bling colors. Zilch just slides on/off with one hand.

Cheers!

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