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Backpacker Magazine – Online Exclusive

Gear Review: Zerogoo Fuel Injector System

A gel/water system for those hard efforts when stopping and refueling isn't an option.

by: Joe Flowers

Zerogoo Fuel Injector System (Courtesy Photo)
Zerogoo Fuel Injector System (Courtesy Photo)
The author on the trail.
The author on the trail.

The Specs
Cost: $25
Weight: Injector + full bottle: 4 oz.
During hard hikes, mountain bike races, or long trail runs, water isn’t the only thing you need. You want calories, carbs, and electrolytes, too, and stopping to suck down a gel packet or mix an energy drink takes time (not good in a race). Zerogoo Fuel Injector System is a way for hikers with hydration packs to mix energy gels, fuel gels, and even powder mixes, without having to gunk up their hydration bladder.

The injector regulates the flow by a valve, controlling how much goop/fuel/taste you sip, or if you prefer a swig of plain water, just turn the valve off. On a difficult eight-mile dayhike in Little Dry Run Wilderness, VA, I was able to get a constant supply of complex carbohydrates, electrolytes, and amino acids, so I never bonked or suffered from my standard 10 a.m. craving for a snack.

You can use either Zerogoo’s lemon-lime flavored Human Fuel ($27.50 for 12 2-ounce bottles), which tastes smooth and flavorful for an energy beverage, or add your favorite powder or gel to the included accessory bottle. Either way, you’ll have to splice the Fuel injector into your hydration system’s hose. The injector, which rests on your shoulder, seemed bulky at first, but in use it never presented a problem and attached securely to all the packs I tried it with (see the second photo above).

I tried three different energy gels inside the bottle. The best results came when I put the gel in the bottles, and shook vigorously before putting them on the injector. That way they delivered an even amount of taste and fuel rather than little blobs of gel through the tube. Historically, I can barely stomach overly-sweet energy gels, but I like the benefit they provide, so I really liked this setup, which delivers the gels in well-balanced, even bursts.

You’ll need to flush the system free of sugars after every use, but it’s easy and takes just 2 minutes (instructions included). Bottom line: Though it's not practical for multiday backpacking trips, it’s a neat accessory for high-powered dayhikes, adventure races, or bike rides.

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Mar 05, 2011

You don't need to buy another one for only water. The Zerogoo setup gives you the option of just water, a little water/gel mix, or a full on gell dose with a little water.

Nov 07, 2010

I have heard of the Fuel Injector Kit

Nov 07, 2010

Zerogoo has recently designed a new accessory that eliminates the concern of having to cut your own existing drink line. It is so new that it has not made it to their website but if you ask for it they will ship it to you. I found out about it at the annual Interbike Bike convention in Las Vegas this past September. I liked the idea that they partnered with Hydrapak to create this new product. The Fuel Injector Kit comes with its own 36" drinkline and bite valve as well as a 70oz Hydrapak reservoir with quick release,4 oz refillable bottle and a drinkline magnetic clip for approximatley $36. The Fuel Injector Kit is a great value especially when a 70 oz reservoir alone can cost upwards of $30 with tax and your local store.

Joe Flowers
Nov 05, 2010

I didn't have to cut my line on my camelback at all, I just took the bite guard portion out and attached the injector onto there. The Camelbak still works after I took the injector off and re-inserted the bite guard.

Nov 03, 2010

Beer helmet works great and at half the price.

Nov 03, 2010

I really don't like the idea of cutting my line and having to by another one for only water. Does this work any other way?


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