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Science In Sport

Science in Sport (SiS) is a leader in endurance sports nutrition, trusted by elite cyclists, WorldTour teams, and everyday riders to fuel performance, optimise recovery, and support training goals. Whether you’re grinding through a long ride, racing up climbs, or putting in back-to-back sessions, SiS provides scientifically formulated gels, hydration tablets, energy powders, and protein products that deliver fast, effective results without compromising on taste or quality.

At BikeHeaven, we stock a wide range of SiS products made specifically for cyclists — from the iconic GO Isotonic Energy Gels to electrolyte blends and post-ride protein solutions. Backed by science and tested in the toughest environments, SiS helps you ride further, recover faster, and train smarter. It’s nutrition designed to meet the demands of cycling at every level.

Fuel your ride with Science in Sport — available now at BikeHeaven.

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SIS Gel Beta Fuel+ Nootropics 60ML 6 Pack - Apple
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Science In Sport

SIS Gel Beta Fuel+ Nootropics 60ML 6 Pack - Apple

$35.95

$35.95

SIS Gel Beta Fuel + Nootrapics 60ML 6 Pack - Lemon Lime
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Science In Sport

SIS Gel Beta Fuel + Nootrapics 60ML 6 Pack - Lemon Lime

$35.95

$35.95

SIS Go Electrolyte Sports Fuel 500G - Orange
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Science In Sport

SIS Go Electrolyte Sports Fuel 500G - Orange

$35.95

$35.95

SIS Go Electrolyte Sports Fuel 500G - Blackcurrant
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Science In Sport

SIS Go Electrolyte Sports Fuel 500G - Blackcurrant

$35.95

$35.95

SIS Go Electrolyte Sports Fuel 500G - Lemon & Lime
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Science In Sport

SIS Go Electrolyte Sports Fuel 500G - Lemon & Lime

$35.95

$35.95

SIS Gel Beta Fuel 60ML 6 Pack - Orange
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Science In Sport

SIS Gel Beta Fuel 60ML 6 Pack - Orange

$34.95

$34.95

SIS Gel Beta Fuel 60ML 6 Pack - Strawberry & Lime
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Science In Sport

SIS Gel Beta Fuel 60ML 6 Pack - Strawberry & Lime

$34.95

$34.95

SIS Gel Beta Fuel 60ML 6 Pack - Neutral
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Science In Sport

SIS Gel Beta Fuel 60ML 6 Pack - Neutral

$34.95

$34.95

SIS Go Isotonic Gel 60ML 7 Variety Pack
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Science In Sport

SIS Go Isotonic Gel 60ML 7 Variety Pack

$29.95

$29.95

SIS Powder Hydro+ Electrolyte Drink Mix 4.1G 6 Pack - Lemon
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Science In Sport

SIS Powder Hydro+ Electrolyte Drink Mix 4.1G 6 Pack - Lemon

$21.95

$21.95

SIS Powder Hydro+ Electrolyte Drink Mix 4.1G 6 Pack - Orange & Mango
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Science In Sport

SIS Powder Hydro+ Electrolyte Drink Mix 4.1G 6 Pack - Orange & Mango

$21.95

$21.95

SIS Powder Hydro+ Electrolyte Drink Mix 4.1G 6 Pack - Berry
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Science In Sport

SIS Powder Hydro+ Electrolyte Drink Mix 4.1G 6 Pack - Berry

$21.95

$21.95

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