Precision F&H
Precision Fuel & Hydration Top Tube Flask
Fuel faster from the top tube — the PF&H Top Tube Flask carries up to **215g of carbs** in an aero, easy-squeeze design, keeping Flow Gel within reach while freeing up your bottle cages for hydration.
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Key Benefits
- Aero Top Tube Fuelling – Designed to carry Flow Gel or fluid efficiently on your bike’s top tube.
- Holds Up to 215g Carbohydrate – Supports high-carb race-day fuelling when used with PF&H Flow Gel.
- 290ml Capacity – Compact enough for aero positioning while still carrying a meaningful amount of fuel.
- Keeps Bottle Cages Free – Allows your main bottles to be used for water or electrolyte drinks.
- Translucent Flask Design – Makes it easier to track how much fuel you have taken on.
- Protected Nozzle Position – Cage design helps shield the nozzle from sweat and rain.
- Soft BPA-Free Material – Easy to squeeze while riding and safe for carrying fuel or fluid.
- Ideal for Endurance Cycling – Built for triathlon, gravel, time trial, long rides and race-day fuelling.
The Precision Fuel & Hydration Top Tube Flask is an aerodynamic bike fuelling solution designed to help cyclists and triathletes carry Flow Gel or fluid cleanly on the top tube. Developed in collaboration with Profile Design, this compact flask is built for modern endurance fuelling strategies, giving you fast access to carbohydrate without filling your pockets with gel wrappers or using up bottle cage space.
With a 290ml capacity, the PF&H Top Tube Flask can hold up to 215g of carbohydrate / 860 calories when used with Precision Fuel & Hydration Flow Gel. The translucent flask makes it easy to monitor intake during training or racing, while the low-profile top tube position keeps your fuel within reach when every second matters. It is ideal for triathlon, time trial, gravel riding, long-distance cycling and race-day fuelling plans where efficiency and organisation are key.
Designed for practical performance, the flask uses a soft, BPA-free construction that is easy to squeeze while riding. The cage helps shield the nozzle from sweat and rain to reduce contamination, while the direct-mount design is compatible with most bikes using top tube bosses or bottle cage mounts, with aftermarket FPS kit compatibility also available. Whether you are preparing for a long ride, triathlon or endurance event, the Precision Fuel & Hydration Top Tube Flask helps you fuel with less mess, less waste and better control.
