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PDW Locks into new Pump Head Design for Fat Stevens Fat Bike Pump

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PDW portland design works fat stevens bike pump kickstarter (1)

Earlier in May, Portland Design Works hoped to turn the fat bike inflation world on its head with their latest project. Designed to be the first portable fat bike specific hand pump, the Fat Stevens has a lot going for it. The huge barrel moves a lot of air with fewer strokes, the handle is designed to be used with big gloves, and the base includes a sturdy fold out foot peg for easy inflation in deep snow, sand, or mud.

Like many first generation products though, the Fat Stevens had a few omissions that were quickly pointed out by potential backers of their Kickstarter campaign. Following their own goal to listen to customer feedback and provide timely updates, PDW sent us photos of the new pump head that will be included with the Fat Stevens. Not only will the pump now accommodate both presta and schrader valves, but it also includes a forged alloy locking lever. This will replace the presta only, thread on chuck initially shown on the prototype.

Now with that settled, if you’re curious to just how quickly Fat Stevens get your fat bike tires rolling again, PDW pitted the pump against a Topeak Mountain Morph in a head to head battle…

PDW portland design works fat stevens bike pump kickstarter (2)

Starting with a 26 x 4.0 Surly Nate tire mounted to a Surly Rolling Darryl rim, the test was a 0 – 7.0 psi affair between the two pumps. Claiming half the strokes to reach all three marks, the Fat Stevens was the clear inflation winner. The Fat Stevens does weigh 39.5g more at 366g total, but we’re thinking the added weight is worth a pump that is twice as efficient.

The Fat Stevens 

  • 4.5 psi required 60 strokes
  • 5.5 psi required 70 strokes
  • 7.0 psi required 80 strokes

The Mountain Morph

  • 4.5 psi required 130 strokes
  • 5.5 psi required 150 strokes
  • 7.0 psi required 160 strokes

There are 16 days left for the Fat Stevens Kickstarter Campaign, and while the Early Bird deal is gone, you can still pick up a pump along with the Blaq Packs bag for just $45.

ridepdw.com

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Gunnstein
Gunnstein
7 years ago

Nice! The previous pump head was a deal breaker, this seems to be done right.

Slow Joe Crow
Slow Joe Crow
7 years ago

That head looks almost exactly like the head on my PDW Little Silver mini pump. I guess what’s old is new again and using your existing, perfectly good pump head design is smarter than reinventing .

Eric Hansen
Eric Hansen
7 years ago

Ehhh. That’s cool. But 80 strokes, or 19 grams of CO2 gets you the same thing.

Veganpotter
Veganpotter
7 years ago

Luckily flats are rare on fat bikes but I’d much rather have a pump like this than CO2. The pump is fool proof and will get you out of trouble if you happen to get more than one flat. For me, I ride quite a distance on the street before I’m on a snowy trail. It would be nice to drop from 10psi to 4-5psi for the trails and add a bit more pressure back in for the ride home….at least on the rear end

JR Z
JR Z
7 years ago

Tubeless means I’m usually only pumping up between 3 & 8psi. PDW claims the same 10 strokes from 5.5-7psi, which means they’re lying about the numbers or (more likely) the PDW has a lot of blow-by at those pressures. Either way, something is fishy and I’ll be sticking with my morph. Hopefully somebody can produce a better pump…

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