FOR THE ORIGINAL EDGE 520 ONLY. The Edge 520 Plus, 530, 540, 550, 830, 840, 850, 1030, 1030 Plus, 1040 and 1050 use the full app, "GC Demand & Fueling", in this same store. REQUIRES A POWER METER OR A TRAINER THAT BROADCASTS POWER. With no power source paired to your Edge, the field estimates nothing — a basic trainer with a speed sensor will not do. How much carbohydrate your cycling training demands — live on your screen. Not what you ate, and not calories: the carbohydrate demand of the effort, second by second, on a curve estimated from your own numbers. ON SCREEN — the simplified version, built for the Edge 520's memory. With the field alone on the page: - the session's total carbohydrate, in grams, in large digits, in the colour of your FEC: blue up to FEC 100, orange up to FEC 200, red after that - the FEC bar, up to 300 - the time, the g/h right now and your power - the FEC demand — FEC (Functional Energy from Carbohydrate) estimates the demand of the ride: FEC 100 is the carbohydrate one hour at your reference power demands — and the time to the next FEC 100 On pages with two or more fields it adapts to the space: the total, the bar, the g/h, power and FEC. SOUND ALERT, optional and off by default: turn it on in the phone settings and the Edge beeps when FEC reaches 100, 200 and 300 (if the Edge's own tones are on). What this version does NOT have, and the full app does: the refuelling messages while you ride, the W' reserve, the alert on other pages and the recording in the activity file. They do not fit in the Edge 520's memory. AN ESTIMATE — the number comes from a model fed with your own data. It is not cardiopulmonary exercise testing, not calorimetry, not a lab test: no gas is measured and no sample is taken. It is not a diagnosis and does not replace any examination. SETUP — on your phone: weight, reference power (FTP) and, optionally, 5-minute power. PAYMENT — 7-day free trial, counted from your first ride in which the field counts (weight, FTP and power reaching the Edge). After that, the field needs an unlock code sold by GC Cycling & Nutrition: one payment — US$ 9.99; in Brazil, R$ 39.90 at launch, for the first 100 licences, and R$ 49.90 afterwards —, valid for one Edge. The licence is yours and does not expire; what lasts a year is the assistance (device swap and support), and renewing is optional, at half the price. Before you press start, the field shows your device code; send it by WhatsApp +55 15 99107-5408, Instagram @gregorycinto or gccyclingnutrition.com.br to get your unlock code. Outside Brazil, checkout is not open yet — write to [email protected] and we will tell you the moment it is. Purchase terms, details and pricing: gccyclingnutrition.com.br/carb-demand#termos Requires a power meter or a trainer that broadcasts power. Edge 520 only. Informational only: not intake advice, and not intended to diagnose or treat any health condition. Compatible with Garmin Connect IQ; not affiliated with, sponsored or endorsed by Garmin.

Optional sound alert, off by default: turn it on in the phone settings and the Edge beeps when FEC reaches 100, 200 and 300.