If you’re lining up for the Power 99er Cycle Tour in February, you’ve already started thinking about the route, your bike and your seeding. One thing that often gets left until race week is the question of electrolytes. Do you really need them on the day, or is plain water enough?
The short answer is that it depends on the distance you’re riding, how much you sweat and how hot it feels once you’re out in the Durbanville valleys. The 99er offers four distances that suit different riders: the 45 km road route, the 76 km, the 95 km and the 80 km Trilogy Challenge that mixes tar, gravel and single track. Your electrolyte plan should match the one you’re doing.
What electrolytes actually do on the bike
Electrolytes are minerals such as sodium, potassium, magnesium and calcium that help your muscles contract, your nerves fire and your body hold onto fluid. When you sweat, you lose more than just water. Sodium is the one that drops the most for most riders, and that is the main reason people reach for electrolyte drinks or tablets.
Lose too much without replacing any of it and you can feel the effects as the ride goes on: a higher heart rate for the same effort, early fatigue, or the occasional cramp. On the other hand, taking electrolytes when you don’t need them won’t magically make you faster. For shorter, cooler rides they are often unnecessary.
When you can skip them
On the 45 km route you are unlikely to need a dedicated electrolyte product if conditions are mild and you start the day normally hydrated. Most riders finish well under two hours. In that time a normal breakfast plus water (or the water and Coca-Cola at the hydration points) is usually enough. Your body can handle the small losses and top them up later with a proper meal.
The same applies to many people on the 76 km if they are not heavy sweaters and the day stays cool. A single bottle of a light electrolyte mix is a safe middle option if you prefer it, but it is not essential.
When electrolytes become useful
Once you are looking at the 95 km or the 80 km Trilogy, or any ride that pushes past two hours in the sun, the picture changes. February in the Western Cape is summer. Even on a clear morning the temperature climbs as you roll through the wine valleys and past Diemersdal Wine Estate. Add climbing (the 95 km has roughly 795 m of ascent) and you will sweat more.
Signs you will probably benefit from electrolytes:
- You are a heavy or salty sweater (white marks on your kit or a stinging taste in your mouth)
- The ride will last longer than about two hours
- You are training hard in the weeks before and riding on consecutive days
- You have had cramps or felt flat on previous long efforts in the heat
In these cases most riders do well with 300–600 mg of sodium per hour, taken through a drink mix, tablets or a combination. That range covers the majority of people without overdoing it. Start with what you have practised in training rather than trying something new on race morning.
Practical ways to take them at the 99er
The event supplies water and Coca-Cola (including sugar-free) at the hydration points. These are spaced roughly every 15–25 km depending on the route. That is excellent for fluid and a quick carb top-up, but they do not contain meaningful electrolytes. Plan to carry your own if you need them.
Simple options that work for most riders:
- One or two bottles of a commercial electrolyte drink mix with a sensible sodium content.
- Electrolyte tablets dropped into plain water bottles you refill at the stations.
- A mix of both, plus a salty snack if you like real food.
Carry what you know you will actually drink. A product that tastes unpleasant tends to stay in the bottle. Test everything on training rides that match the distance and effort of your chosen 99er route.
Start the race with full bottles, as the organisers recommend. The first hydration point on most routes is around the 19–25 km mark, so you will rely on what you leave with for the opening hour or so.
A few extra notes for race day
Pay attention to how you feel rather than following a rigid schedule. If you are thirsty, drink. If the day is hotter than expected or you are working harder than planned on the hills, increase the electrolyte side a little. If it stays cool and you are cruising, you can ease off.
After you finish, keep replacing fluid and salt with food and drink while you enjoy the race village. The post-ride Coca-Cola is popular for a reason, but a proper meal later in the day does most of the recovery work.
The 99er has grown into the second-largest cycling event in the Western Cape, with nearly 5 000 riders, because it offers something for everyone while raising funds for El Shaddai Christian School. Whether you are chasing a seeding result for the Cape Town Cycle Tour on the 95 km or 80 km, or simply enjoying the 45 km through the farmlands, a sensible hydration plan keeps the day enjoyable.
If you have never paid much attention to electrolytes before, the next few training rides are the perfect time to experiment. Find what works for your sweat rate and the conditions you expect in Durbanville, then stick to it. That small bit of preparation is one of the easiest ways to arrive at the start line ready for a good ride.
Follow the 99er on Facebook:
facebook.com/99erCycleTour
Find out more about the 99er hydration points:
99er.co.za/99er-info/#hydration
