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Quantity
1
Description
The CrankTank 4 is a lightweight and rigid high capacity hydration system that fits on nearly any triangular hardtail bike, such as MTBs, gravel bikes and road bikes, and allows you to carry up to 1.06 gallons/4 liters of water. Compared to...
Reviews
4.8
25 ratings
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Have not used it yet on tour, but I like it. It fit just fine in the, um, "crotch" of the triangle. I will probably pass on the adapters as it sits lower without them and just wrap some old bar tape around the frame to prevent abrasion. I was doubtful that it held the claimed four liters, and then I dumped out four liters of water from it! My only concern is that the pressure release valve is not protected from dust or debris and so I am not sure how to prevent the water from being contaminated. Only that prevents a five star rating. If you tour, you need this. Just buy it. (I had four containers to carry four liters, now I only have one.) Oh, for SIX stars, insulate it so that it will keep ice for a full 8 hours. (I had mounted a 2L stainless steel insulated jug on my seat tube. Hmmm. Will it fit above the CrankTank?)
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Papadagio88 · May 20, 2026
Great product, well designed. Shame that postage to UK is so expensive!
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Tim · May 20, 2026
My girlfriend and I are absolutely thrilled with our Crank Tanks 3 and 4! Both tanks are incredibly well-designed, durable, and easy to use. They make fueling up or carrying liquids on our rides a breeze. A special shoutout to David from the support team—he was friendly, knowledgeable, and went above and beyond to help us. Excellent products and outstanding service all around!