Precision Fuel & Hydration Top Tube Flask - Aerodynamic Carbohydrate Transport for Triathlon & Cycling

The PF&H Top Tube Flask is designed for athletes who want to carry large amounts of carbohydrates efficiently, cleanly and aero during long rides. In collaboration with Profile Design - a leader in aerodynamic cycling components for nearly 40 years - this flask offers a super-slim, strategic way to carry PF 300 Flow Gel or other liquid nutrition.

Aerodynamically Designed for Modern Fueling

This top tube flask fits directly onto the direct-mount bosses of your top tube, creating an aerodynamic, minimal frontal area. Perfect for time trials, triathlons, gravel races and long endurance events where every second and every gram counts.

• 290 ml capacity - good for 215 g carbs (860 kcal) with PF Flow Gel
• Keeps your bottle cages free for water or electrolytes
• No more sticky gel packs in your pockets

Practical, Hygienic and Instantly Accessible

The transparent body lets you see exactly how much you have left, keeping your fueling perfectly timed. The specially designed cage hides the water bottle from rain and sweat - minimizing contamination on long days in the saddle.

• Bottle is protected from moisture and dirt
• Fast and easy dosing at high intensity
• Ideal for long efforts where you accurately track your carbohydrate intake

Soft-Squeeze Design

The bottle is made of BPA-free, food-safe HDPE and has a soft, flexible body that is effortless to squeeze - even with cold hands, high cadence or brisk breathing. Perfect for quick fueling without interruption.

Compatible with Most Bikes

• Direct-mount top tube attachment
• Compatible with aftermarket FPS kits
• Includes 2× M5 x 14mm bolts + 2× M5 washers (included in the bottle)
• Always check the bike-specific manual for compatibility

Specifications

• Capacity: 290 ml (215 g carbs with PF Flow Gel)
• Material: BPA-free, food-safe HDPE
• Color: Opaque Grey with PF&H color band
• Dimensions: 295 × 46 × 55 mm
• Weight: 130 g (without bolts)

Why choose the PF&H Top Tube Flask?

This flask is the most aerodynamic, clean and strategic way to carry large amounts of carbohydrates on the bike. You keep your bottle cages free for hydration, eliminate sticky gel residue and fuel't exactly as planned. Ideal for triathletes, gravel riders and endurance athletes who want maximum efficiency.