Water bottle for your bike: cages, luggage and refilling
A good water bottle for your bike can decide whether you still feel like riding home after two hours out. Classic bike bottles are light and easy to grab, but they warm up quickly in the sun. An insulated bottle keeps your drink cool or warm, but it needs the right place on the bike or in your luggage. In this guide you will learn which bottle suits which ride, what to look for in a bottle cage and how to refill without stress along the way.
Contents8
Which water bottle for your bike suits your ride?
On the bike you will mainly come across two types of bottle: the classic plastic cycling bottle, often called a “bidon”, and the insulated stainless steel bottle. Both have their place, just in different situations.
The plastic cycling bottle is built for sporty riding: it is light, can be squeezed with one hand and usually has a valve you can drink from while riding. Its drawback is the lack of insulation. On a warm day the water inside is soon as warm as the air.
A double-walled stainless steel bottle comes into its own when you ride at a more leisurely pace, take breaks and want your drink to stay at a pleasant temperature for a long time. For our IZY bottles the manufacturer states that drinks stay cold for up to 24 hours and hot for up to 12 hours. In return, you do not drink from a valve while riding but unscrew the lid during your break.
| Situation | Suitable bottle | Best place to carry it |
|---|---|---|
| Sporty ride, drinking while riding | Light cycling bottle with valve | Bottle cage on the frame |
| Summer outing with breaks | Insulated stainless steel bottle with cold water | Backpack, handlebar bag or pannier |
| Spring or autumn, chilly mornings | Insulated bottle with tea | Luggage, protected from knocks |
| Longer day trip | A combination of both | Cycling bottle on the frame, insulated bottle in the luggage |
For many leisure cyclists the combination is the most relaxed solution: the light cycling bottle on the frame for in between, the insulated bottle in the luggage for the break by the lake or on the bench at the edge of a field.
Bottle cages: measure first, then ride
The most common mistake with a bike bottle is a cage that does not fit the bottle. According to bike retailers, many bottle cages are designed for cycling bottles with a diameter of around 74 mm. Insulated bottles are often shaped differently, because the double wall needs space. So you cannot say across the board whether a particular bottle will sit securely in a cage.
How to check the fit
- Measure the diameter: Measure the bottle at its widest point and compare the figure with the specification of your cage.
- Test it standing still: Put the filled bottle in the cage and give the bike a good shake. If it slips, the cage is not suitable.
- Test ride on cobblestones: A short ride over uneven ground quickly shows whether the bottle rattles or jumps out.
- Mind the frame clearance: On small frames or full-suspension bikes, space in the main triangle is tight. Side-loading cages help here.
For bottles outside the standard size there are adjustable cages and models with a strap. Whether your insulated bottle holds in them can likewise only be found out by trying. We cannot promise a cage fit for our IZY bottles and therefore expressly recommend carrying them in a bag.
Why a heavy bottle is better off in your luggage
A filled stainless steel bottle is heavier than an empty plastic one. If it falls out of the cage while you are riding, it can end up in the way or get caught in the front wheel. An insulated bottle also dents easily if it hits the tarmac. In a backpack or a padded bag it is much better protected.
The insulated bottle in your bike luggage
There are three good places for an insulated bottle on a bike: the backpack, the handlebar bag and the pannier. With all of them, what matters is that the bottle is stowed upright or at least firmly and does not roll around loosely.
According to the manufacturer, both our IZY bottles have a leak-proof screw cap. The double-walled insulation also prevents condensation on the outside, so your phone, map or jacket next to it stay dry. Thanks to their slim 500 ml shape they fit well into backpacks and side pockets.
- IZY Bottles Van Gogh Flowers thermos bottle – 500 ml: floral design inspired by Vincent van Gogh, double-walled stainless steel, BPA-free.
- IZY x Pip Studio “La Dolce Vita” thermos bottle – 500 ml: playful Pip Studio pattern, comes in a round gift tin.
A tip from everyday use: wrap the bottle in a thin cloth or your windbreaker inside the backpack. This cushions knocks on gravel paths and protects the design from scratches from keys or your bike lock.
What to drink on a bike ride?
For most bike outings, water is all you need. If you like more flavour, mix a juice spritzer or add a few slices of cucumber or lemon. On cool days in March or October, warm tea in the insulated bottle makes a nice change, especially at the first break after a chilly descent.
How much you need depends on temperature, duration and effort. Plan a little more than you think you will need, and drink regularly in small sips rather than rarely in large amounts. If you have health questions about how much to drink, it is best to talk to your doctor.
Drinking while riding
From a cycling bottle with a valve you can drink one-handed while rolling. With a screw-cap bottle that is not a good idea: you need both hands to open it, and that does not belong in traffic. Stop briefly for a sip from the insulated bottle. These short stops do you good on longer rides anyway.
Refilling on the way
On a day trip by bike you will probably want to top up your bottle at least once. A few options:
- Cafés and bakeries: Many will fill up tap water if you ask. In Germany, the “Refill Deutschland” initiative has participating shops display a sticker showing that you can refill water there for free.
- Public drinking fountains: Many towns have drinking water fountains. Look for the drinking water label.
- Caution with unmarked taps: Water at cemeteries or allotment gardens is often expressly not drinking water. If in doubt, do not fill up.
On new routes, plan roughly in advance where you will pass places where refilling is realistic. On cycle paths through fields and forests in particular, the distances can be long.
Care after the bike ride
After the outing, do not forget the bottle in your luggage until next weekend. Empty it, rinse it with warm water and a little mild washing-up liquid and let it dry open. For our IZY bottles the manufacturer says: wash by hand, not in the dishwasher, so that the surface and insulation stay protected. A slim bottle brush helps with cleaning the bottom.
If there was juice spritzer or tea in the bottle, a thorough rinse is especially worthwhile so that no residue builds up. It is best to dry the lid separately.
If you head to a swimming lake after your bike ride, a light hammam towel fits nicely into your luggage alongside the bottle. You will find tips in the article Hammam towel at the lake. And how to keep an insulated bottle cool for as long as possible on hot days is explained in Water bottle in summer.
Related reading: Water bottle for hiking: amount, backpack and refilling · Water bottle for the gym: cold, leak-proof and hygienic · Leak-proof water bottle: closures, seals and simple tests
Conclusion
There is no perfect water bottle for your bike, but there is one that suits the way you ride. For sporty rides where you drink on the move, a light cycling bottle in the cage is ideal. For outings with breaks, on hot summer days or in cool weather with tea, a double-walled insulated bottle in your luggage is the better choice. Check the fit of every bottle cage yourself rather than relying on assumptions, and plan refills on longer routes in advance.
Frequently asked questions
Do the IZY bottles fit in a bike bottle cage?
There is no manufacturer information on this. Measure the bottle and compare the diameter with your cage, or try it out while standing still. We recommend carrying the IZY bottles in a backpack or bike bag.
Can I drink from an insulated bottle while riding?
With a screw cap you need both hands to open it. So stop briefly for a sip. A cycling bottle with a valve is designed for drinking while riding.
Does water stay cold in the insulated bottle on a bike ride?
According to the manufacturer, our IZY bottles keep drinks cold for up to 24 hours. How long it is in practice depends, among other things, on how cold the drink is when you fill it and how often you open the bottle.
Where can I refill water on the way?
In cafés, bakeries and at marked drinking fountains. Participants in the “Refill Deutschland” initiative show with a sticker that you can get tap water there for free. Avoid water without a drinking water label.
How do I clean the bottle after the ride?
By hand with warm water, a little mild washing-up liquid and a bottle brush. Then let it dry open. According to the manufacturer, the IZY bottles do not go in the dishwasher.
Personally written by Martin – founder of BeachAndSteam. As a family, we have run the Meri Sauna at Lake Kulkwitz for more than 18 years.
