When you're going for a ride on your bike, you want to be able to travel as light as possible, but you also need to make sure your oxygen needs are being met sufficiently. If you're not sure, or if you haven't gone biking in a while since you've started using oxygen therapy, you should talk to your doctor to see which possible portable oxygen concentrators will cover your oxygen needs while you are exerting yourself.
Your doctor might have you take a physical test on a stationary bike to get an accurate reading of how much more oxygen you need while you are riding your bike. Everyone needs to take in more oxygen while they are getting exercise or just when they are moving around a lot. If you need to use oxygen therapy, it means your lungs have a hard time bringing in enough oxygen to meet your needs while you are doing every day things, like walking around the house or even while you are sitting still. Some people need to use oxygen therapy only while they are exercising.
Your doctor might also do a reading of your blood oxygen level with a pulse oximeter, which is non invasive, or even draw blood to do a arterial blood gas test. Once it's been determined exactly how much you need while exercising or riding a bike, your doctor can help you decide on a dosage setting, and from there you can choose the right portable oxygen concentrator to use while biking.
Both of these tiny yet powerful POCs weigh less than 7 lbs and come with a carry bag that can be comfortably worn while you are biking. The Freestyle has a maximum dosage of 332 ml/min of pulse dose oxygen, and the Freestyle 5 can deliver as much as 750 ml/min of pulse dose oxygen.
The Freestyle is only 4.4 lbs, and the Freestyle 5 is 6.2 lbs. These are both compatible with the AirSep AirBelt supplemental battery pack, which is worn around the waist and will add even more battery life to the concentrators. They also also compatible with the new AirSep battery pack, which only weighs 1 lb.
The ActivOx weighs only 4.83 lbs and has a maximum pulse dose oxygen capacity equivalent to 3 LPM of continuous flow. This portable oxygen concentrator also has a nice and convenient carry bag that is easy to wear while riding a bike, and has a long lasting battery. There's a reason it was given the name ActivOx, since it was made for those who lead a very active lifestyle that includes traveling and exercising.
The Inogen One G3 weighs just 4.9 lbs with the 8 cell battery inside, and has pulse dose settings from 1 to 4. You can get the 16 cell battery to have double the battery life, if you need to use one of the higher settings, or if you want to take nice long leisurely bike rides.